ethlene process in coop

8/8/2019 Ethlene Process in Coop

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Ethylen is the largest volume industri-ally produced organic material and itsmajority is used in the production ofpolymers and derivatives. Between avariety of processes the thermal crack-ing of hydrocarbons in the presence ofsteam (steam cracker) is mostly used.Regardless of the process type, allplants require process analyticalequipment to collect reliable andaccurate process data for process con-trol, product quality, and plant safety.

Siemens, a leader in process analyti-cal instrumentation, has proven overdecades its capability to plan, engi-neer, manufacture, implement andservice analyzer systems for use inethylen plants worldwide.This Case Study provides an overviewof the steam cracking process anddescribes how Siemens, with its out-standing analyzer technology, appli-cation know-how and system integra-tion expertise can provide remarkableuser benefits.

Ethylene

Ethylene is the largest volumeindustrially produced organic mate-rial. Current worldwide production

is about 95 Mio. t/year and is pro-jected to increase for the foresee-able future. A typical modern plantproduces in excess of 800000 t/year.Feedstock to ethylene plants rangesfrom light Ethane/Propane mix toheavy naphta and vacuum gas oils.Most plants are designed with rawmaterial flexibility in mind. Majorityof ethylene produced is used in theproduction of polymers and ethyl-ene derivatives such as ethyleneoxide and glycol. A typical ethyleneplant also makes a number of otherimportant chemicals such as propy-

lene, butadiene and pyrolysis gaso-line.

In the past years, Ethylene plantshave evolved into highly integrated,highly flexible processing systemsthat can profitably adjust to chang-ing raw material availability andmarket demands for Olefins prod-ucts. Advanced process controltechnologies are used in Olefinsplants and have greatly improvedproducts qualiy, plant efficiency andresulted in quick payback of theinvestment.

Typical process features of an ethyl-ene process are short residence timein the furnace, high selectivity, feed-stock flexibility, operational reliabil-ity and safety, easy start-up, andenergy efficiency.

Process analytics is a key issue forprocess control by online monitor-ing the various process streams inethylene and propylene production.Process analytics maximizes yieldsand ensures product quality specifi-cations.

Process Analytics inEthylene Production Plants


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Ethylene production overview

EthyleneEthylene, H2C=CH2, is the lightest ole-fin. It is a colorless, flammable gas,which is produced mainly from petro-leum-based feedstocks by thermalcracking in the presence of steam.Ethylene has almost no direct endusesbut acts almost exclusively as an inter-mediate in the manufacture of otherchemicals, especially plastics.

Ethylene may be polymerized directly toproduce polyethylene, the world's mostwidely used plastic. Ethylene can also

be chlorinated to produce 1,2-dichloro-ethane, a precursor to the plastic polyvi-nyl chloride, or combined with benzeneto produce ethylbenzene, which is usedin the manufacture of polystyrene,another important plastic. Smalleramounts of ethylene are oxidized toproduce chemicals including ethyleneoxide, ethanol, and polyvinyl acetate.

Ethylen quality depends on usersrequirements in downstream processes.No single chemicalgrade ethylen exists,but ethylene content normally exceeds99,7%. Sulfur, oxygen, acetylene,

hydrogen, carbon monoxide and car-bon dioxide are the most troublesomeimpurities that must be controlled care-fully.

Raw materials

Various feedstocks (liquid and gaseous)are used for the production of ethylen.The principal feedstocks are naphtas, amixture of hydrocarbons in the boilingrange of 30 to 200 C. Depending on theorigin, naphta composition and qualitycan vary over a wide range requiringquality control of the feed mixtures.Preferably in the US and the middle eastlight feedstocks (natural gas, ethane,propane, butan) are used. Gas oils(crude oil fractions) are also gaining

importance as feedstocks in some areasof the world.

Chemical analysis of the feedstock isimportant to ensure the required prod-uct specification and even more whenthe production is based on varying feed-stocks.

Production

The bulk of the worldwide production isbased on thermal cracking with steam.The process is called pyrolysis or steamcracking. Production can be split intofour sections (Fig. 1): The first three sec-tions are more or less identical for all

commercial processes, with the excep-tion that primary fractionation isrequired only in case of a liquid fee-stock.

A large variety of process routes, how-ever, exist for the hydrocarbon fraction-ation section.

A hydrocarbon feed stream is pre-heated, mixed with steam and furtherheated to 500 to 700 C. The streamenters a fired tubular reactor (known ascracker, cracking heater), where undercontrolled conditions the feedstock iscracked at 800 to 850 C into smallermolecules within a residence time of0.1 to 0.5 s. After leaving the radiantcoils of the furnace the product mix-

tures are cooled down instantaneouslyin transfer line exchangers (TLE) to pre-serve the gas composition. This quench-ing time is a crucial measure for severitycontrol of the final products.

The steam dilution lowers the hydrocar-bon pressure, thereby enhancing theolefin yield and reducing the tendencyto form and deposit coke in the tubes ofthe furnace and coolers. For details ofthe process steps see Fig. 2 to 5.

Cracking furnaces (capacity of modernunits up to 150 000 t/year) representthe largest energy consumer in an eth-ylene plant. Cracking furnace technolo-

gies are offered by engineering compa-nies such as ABB Lummus, KTI-Technip,Linde AG (Pyrocrack), M.W. Kellog,Stone & Webster, e.a.

Other processes for ethylene produc-tion besides conventional thermalcracking include

Recovery from Fluid Catalytic Crack-ing (FFC) offgas

Fluidized-bed cracking

Catalytic pyrolysis

Membrane reactor

e.a.Feed

Steam

Water

Acid gases

Gas

TLE

TLE

Recycle

Ethylene

DeMeth

DeEth

C2Split

C3Split

DeBut

Propylene

DeProp

Gasoline

Methane rich tail gas

H2 rich tail gas

Feed and

Furnace section

Quench and

Fractionator section

Fuel Oil

Gasoline

Back to compression

Compressor and

Condensate section

Hydrocarbon

Separation section

Fig. 1: Ethylene production (overview)


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Ethylene production

Feed Cracking

Pyrolysis furnace

The hydrocarbon molecules of the feed-stock are cracked in the furnace (Fig. 2)in the presence of a catalyst at hightemperatures. Typically more than tenfurnaces are used in a single ethyleneplant. Most feedstocks are naphta or amixture of ethane and methane. Thefeed is mixed (diluted) with steam tominimize the side reaction of formingcoke and to improve selectivity to pro-duce the desired olefines by loweringhydrocarbon partial pressure. Crackingis an endothermic reaction with heatsupplied by side-wall or floor burners ora combination of both, which use gas-eous and/or liquid fuels.The fundamental parameters of crack-ing furnaces are temperature and tem-perature profile, residence time of thegas during cracking, and partial pres-sure.

Tranfer Line Exchanger

The reaction mixture exiting the radiantcoil of the furnace contains a large spec-

trum of hydrocarbons. It is instanta-neously cooled in quench coolers calledtransfer line exchangers (Fig. 2) to pre-serve the gas composition. Valuablehigh pressure steam is generated fromthe cracked gas during this process.

Cracked Gas ProcessingFurther processing of cracked gas, i.e.separation into the desired products orfractions, can be performed in many dif-ferent sequences that depend on thefeedstock type and the number andspecification of the plant products.Many options are available with differ-ent plant designs for cracked gasderived from gaseous or liquid fee-stocks. For example: With pure ethaneas feedstock, the amount of C3 andheavier byproducts is small and theirrecovery is not economically feasible, ora significant content of propane in thefeedstock makes a depropanizer neces-sary and butane feeds requires oil andgasoline removal from the cracked gas.

Therefore, plants will differ from eachother and the following flow diagramsof show only exemplary solutions!

Spaltofen

1.1 1.2

1.3

1.5

1.6

1.7 1.8

1.4

1.1 1.2

1.3

1.5

1.6

1.7 1.8

1.4

Flue gas Flue gas

Steam boiler

Diluent

steam

Fresh

feed

Recycle

feed Fuel

to

quench tower

Furnace

Transfer line

exchanger

Fig. 2: Feed and furnace section

Sampling pointSampling stream

MeasuringComponent

MeasuringRange

MeasuringTask

Analyzer

1.1 Fresh feed C1, C2, C3,C4+ (PINA)

% range Feedcomposition

MAXUM

1.2 Mixed feed(Fresh + recycle)

C1, C2=, C2C3, C4+

% range Feedcomposition

MAXUM orMicroSAM

1.3 Fuel gas to furnaces N2, H2, C1,C2=

% range BTU firingrate control

MAXUM orMicroSAMULTRAMAT 6

1.4 Furnace convectionsection

O2 0 ... 8 % Crackingcontrol

ZrO2 probe

1.5 Cracked gas at TLE exit CONO (NO2)O2

0 ... 200 ppm0 ... 250 ppm0 ... 8 ppm

Crackingcontrol

ULTRAMAT 23ULTRAMAT 23OXYMAT 64

1.6 Boiler combustioncontrol

O2 0 ... 10 % ZrO2 probe

1.7 Stack of steamboiler

CONOx

O2

0 ... 0,5 %0 ... 0,1 %

0 ... 10 %

Emissioncontrol

ULTRAMAT 6ULTRAMAT 23

OXYMAT 6

1.8 Flue gas fromfurnace

CONOx, SO2O2

In compli-ance withregulations

Emissioncontrol

ULTRAMAT 6ULTRAMAT 23OXYMAT 6

Table 1: Process analysis data (selection) in the feed and furnace section


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Gasoline Fractionator

Heavy fuel oils cuts are separated fromthe bulk of the effluent stream in thegasoline fractionator (Fig. 3) by directcontact with circulating pyrolysis oil.Function is to make a sharp separationbetween the heavy oil fraction from thegasoline and lighter fractions .The gasoline fractionator is only used incase of a liquid feedstock (naphta).

Quench tower

Further cooling is performed in thequench tower (Fig. 3) by circulatingwater streams to minimize any furthercracking. The quench tower operates asa partial condenser for the fractionator,condensing practically all of the steamand most of the pyrolysis gasoline com-ponents. In some designs, the gasolinefractionator and the quench tower arecombined into onesingle structure.

Compression train

The gas from the quench tower is thencompressed in a 4 or 5 stage compres-sor train (Fig. 4) to an optimum pres-

sure for separating it into various com-ponents. Water and hydrocarbons areseparated between stages and recycled.Acid gases (CO2 and H2S) are removedafter the 3rd or 4th compression stageby scrubbing them with a dilute causicsoda solution. In case of higher sulfurcontent a separate gas removal systemis used.

Refrigeration train

The pyrolysis gas is then partially con-densed over the stages of a refrigera-tion system to about -165 C, whereonly the hydrogen remains in the vaporstage. The stage condensates are fed tothe demethanizer while hydrogen iswithdrawn from the lowest tempera-ture separator.

Demethanizer

The DeMethanizer is designed for com-plete separation of methane from ethyl-ene and heavier components. TheDeMethanizer overhead consists ofmethane with some impurities ofhydrogen, CO and traces of ethylene.The DeMethanizer bottoms, consistingof ethylene and heavier components,are sent to the DeEthanizer.

Deethanizer

The DeEthanizer produces C2 hydrocar-bons as overhead (acetylene, ethaneand ethylene) and C3 and heavierhydrocarbons as bottoms.

3.33.1

3.2

3.33.1

3.2

cracked gas from

quench section

Compression

Stages 1 - 4

Compression

Stage 5

Dryer and

cooler

to DeMethanizer

to DePropanizer

Hydrogen rich

tail gas

Acid gases to

incineration or

recovery

Acid gas

scubber

2.12.1

Gasoline

fractionation

Water

quench

Gasoline

stripping

from TLE

(liquid

feedstock)

Oil

quench

Pyrolysis fuel oil Pyrolysis gasoline

to compression section

Fig. 3: Fractionation and quench section Fig. 4: Compression section


Component MeasuringRange

MeasuringTask

Analyzer

2.1 Cracked gas atquench inlet

H2C1, C2=C2 ,C3=,C3, C4+

0 ... 40 %% range% range

Cracked gascomposition

MAXUM orMicroSAMCALOMAT 6

3.1 Cracked gas aftercaustic scrubber

CO2CO

0 ... 5 ppm0 ... 5000 ppm

Process control MAXUMULTRAMAT 6

3.2 Drying/Chilling outlet(to Methanizer)

COC2=

0 ... 3000 ppm0 ... 1/5 %

Process control ULTRAMAT 6MAXUM orMicroSAM

3.3 Drying/Chilling outlet

(Hydrogen richtail gas)

N2, H2,

C1, C2=,C2, CO

% range Product quality

control

MAXUM or

MicroSAMULTRAMAT 6

Table 2: Process analysis data (selection) in the quench and compression section


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Acetylene hydrogenation

The DeEthanizer overhead is heated andhydrogen is added to convert acetyleneto ethylene and ethane (hyrogenation).The effluent contains less than 1 ppm ofacetylene, and traces of methane andhydrogen.

Ethylene fractionator(C2 splitter)

After acethylene removal, the dried gasenters an ethylene-ethane separator(ethylene fractionator or C2 splitter).

Ethylene product is gained here whileethane being recycled.

DePropanizer

The condensate stripper and the DeEth-anizer bottoms are both processed inthe DePropanizer for a sharp separationof C3 hydrocarbons as overheads andC4+ as bottoms.

Propylene fractionator(C3 splitter)

The overhead of the DePropanizer issent to the propylene fractionator(C3 splitter) for further processing.

DeButanizer

The DePropanizer bottoms are furtherprocessed in the DeButanizer for sepa-ration of C4 product from light gasoline.

Recycle

DeMethanizer

DeEthanizer

C2Split

DePropanizer

DeButanizer

Benzin

Hydrierung

Recycle

Propylen

4.7

4.5

4.4

4.3

4.2

4.11

4.9

4.8

4.10

4.6

C3+

C5+

C4+

C4

C3

C2

Cold

boxPSA

4.1

PSA: Pressure Swing Adsorption Unit

4.7

4.5

4.4

4.3

4.2

4.11

4.9

4.8

4.10

4.6

C3+

C5+

C4+

C4

C3

C2

4.1fromrefrigeration

from

refrigeration

from

refrigeration

H2

rich tail gas

Methane rich tail gas

Ethylene

C4 material

Gasoline

Propylene

DeMethanizer

DeEthanizerRecycle

Recycle

Hydrogenation

C2Split

C3Split

DePropanizer

DeButanizer

Cold

boxPSA

Fig. 5: Hydrocarbon separation section


Component Measuring Range Measuring Task Analyzer

4.1 Hydrogen rich tailgas H2, N2, C1, C2=, C2, CO % range Tail gas ccomposition MAXUM or MicroSAM

4.2 Methane rich tailgas H2, N2, C1, C2=, C2, CO % range Tal gas composition MAXUM or MicroSAM

4.3 DeMethanizer bottoms C2/C3= % range Process control MAXUM or MicroSAM

4.4 DeEthanizer bottoms C2/C3= % range Process control MAXUM or MicroSAM

4.5 DeEthanizer overhead C3=/C2 ppm Process control MAXUM or MicroSAM

4.6 C2 split bottoms C2=, C3= % range Process control MAXUM or MicroSAM4.7 Ethylene product C1, C2, C2=

CO, CO2, NH3MeOH, PrOH, Carbonyl

0 ... 300/10/1000 ppm0 ...2/5/1 ppm0 ... 1 ppm

Product quality MAXUMMAXUMMAXUMULTRAMAT 6

4.8 To DeButanizer C1, C2, C2=CO, CO2, NH3MeOH, PrOH, Carbonyl

0 ... 1000/10/1000 ppm0 ... 2/5/1 ppm0 ... 1 ppm

Process control MAXUMMAXUMMAXUM

4.9 DePropanizer overhead C2, C3=, C3, C4+ % range Process control MAXUM or MicroSAM

4.10 C3 split bottomsPropylene product

C3=, C4+, Propadiene(PD), Propine (MA)

% range Product quality MAXUMULTRAMAT 6

4.11 Buten-1 product C2,C2=, C4, C4=, C6= 0 ... 500/100/3000 ppm Process control MAXUM or MicroSAM

Table 3: Process analysis data (selection) in the hydrocarbon separation section


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Process analyzer application

Process optimizationProcess optimization is critical for ethyl-ene production because cracking reac-tions change as the run proceeds. Oper-ation costs are high and , therefore,process control including online analyz-ers providing almost realtime processinformation has reached a very highlevel of importance. Models for differ-ent kinds of feedstocks have beendevelopped to optimize production ofcertain amounts of ethylen, propyleneand other products at maximum profit

even with changing of feedstock qualityor type.

Process analyzer tasksProcess analytical equipment is an in-dispensable part of any ethylene plantbecause it provides the operator andthe control system with key data fromthe process and its environment.

Four major applications

Analyzer applications can be divided infour groups depending on how andwhere the analyzer data are used:

Closed-loop control for processand product optimizationThis application helps to increaseyield, reduce energy consumption,achieve smooth operation, and keepproduct quality accoding to the speci-fication

Quality control and documentationfor ISO compliance

Plant monitoring and alarmsThis application protects personneland plant from possible hazard fromtoxic or explosive substances

Environmental control

This application helps to keep air andwater emission levels in compliancewith official regulations.

Analyzers and sampling points

More than 100 analyzers of differenttype are used in an ethylene plant rang-ing from simple sensor type monitors tohigh technology process gas chromato-graphs.

The list typically includes

Process gas chromatographs

Continuous gas analyzers(paramagnetic oxygen analyzers,NDIR analyzers, total hydrocarboncontent analyzers)

Analyzers for moisture and O2 traces Low Explosion Level (LEL) analyzers

Liquid analyzers for pH, conductivity,etc.

Analyzer installations

Analyzers are installed partially in thefield close to the sampling locationand/or in an analyzer house (shelter).In modern plants most of the analyzersare interfaced to a plant wide data com-munication system for direct data trans-fer from and to the analyzers.The total number of analyzers installedin a plant varies from plant to plantdepending on the type of process, indi-vidual plant conditions and userrequirements.

Safety and environmentalimpactsEthylene plants require special mea-sures for protection of personnel andthe environment. Despite of nationalregulations, the following measures areconsidered as standard worldwide forany plant:

Flue gas emission control

NOx emissions are limited by use ofLowNOx burners and/or integratedSCR technology for catalytic reduc-tion. NOx limits are, in some regions,down to < 50 ppm.

Particulate emission during thedecoking process is reduced by eitherincineration or appropriate filter tech-nology.

Fugitive emissions and VOC control

Explosion protectionAreas where inflammable substancesin sufficient quantity can get in con-tact to oxygen (air) become a hazard-ous area. In this case, measures arenecessary to exclude the danger ofignition.

Water protectionLiquid emission of the plant mainlyresults from quench water, dilutionsteam, caustic-stripping (acid gasremoval) liquid and decoking water.These streams are treated properly

before beeing fed to the wastewaterplant.

Waste disposalAn ethylene plant produces a varietyof waste materials that have to betreated according to the relevant reg-ulations for disposal.

LEL AnalyzersMixtures of combustible substances andair or oxygen are explosive in certainconcentration ranges. For each concen-tration mixture, low (LEL) and high(HEL) explosion limits are specified thatdepend on the temperature and pres-sure of the gas. Special gas detectorsare used to monitor substances such ashydrogen, ethylene, propylene, CO andO2 to prevent the atmosphere inside oroutside the analyzer house from reach-ing the LEL.Gas detectors are typically part of thesafeguarding system of the analyzerhouse to minimize the exposure of per-sonnel to flammable or toxic hazads.

Associated operationsA number of associated plant units andprocesses with the need of using pro-

cess analyzers are required to run anethylene plant, including e.g.

Furnace decoking

Flue gas emission control

Flue gas cleaning

Air separation

Waste water treatment

Waste incineration

Explosion warning


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Siemens Process Analytics at a glanceProducts

Siemens Process AnalyticsSiemens Process Analytics is a leadingprovider of process analyzers and pro-cess analysis systems. We offer our glo-bal customers the best solutions fortheir applications based on innovativeanalysis technologies, customized sys-tem engineering, sound knowledge ofcustomer applications and professionalsupport. And with Totally IntegratedAutomation (TIA). Siemens ProcessAnalytics is your qualified partner forefficient solutions that integrate pro-

cess analysers into automations sys-tems in the process industry.

From demanding analysis tasks in thechemical, oil & gas and petrochemicalindustry to combustion control inpower plants to emission monitoring atwaste incineration plants, the highlyaccurate and reliable Siemens gas chro-matographs and continuous analyserswill always do the job.

Siemens process Analytics offers a wideand innovative portfolio designed tomeet all user requirements for compre-hensive products and solutions.

Our ProductsThe product line of Siemens ProcessAnalytics comprises extractive and in-situ continuous gas analyzers (fig. 6 to9), process gas chromatographs (fig. 10to 13), sampling systems and auxiliaryequipment. Analyzers and chromato-graphs are available in different ver-sions for rack or field mounting, explo-sion protection, corrosion resistant etc.

A flexible networking concept allowsinterfacing to DCS and maintenancestations via 4 to 20 mA, PROFIBUS,

Modbus, OPC or industrial ethernet.

Fig. 6: Series 6 gas analyzer (rack design)

Fig. 7: Product scope Siemens Continuous Gas Analyzers

Extractive Continuous Gas Analyzers (CGA)

ULTRAMAT 23 The ULTRAMAT 23 is a cost-effective multicomponent analyser for themeasurement of up to 3 infrared sensitive gases (NDIR principle) plusoxygen (electrochemical cell). The ULTRAMAT 23 is suitable for a widerange of standard applications. Calibration using ambient air eliminatesthe need of expensive calibration gases.

CALOMAT 6/62 The CALOMAT 6 uses the thermal conductivity detection (TCD) methodto measure the concentration of certain process gases, preferably hydro-gen.The CALOMAT 62 applies the TCD method as well and is speciallydesigned for use in application with corrosive gases such as chlorine.

OXYMAT 6/61/64 The OXYMAT 6 uses the paramagnetic measuring method and can beused in applications for process control, emission monitoring and qualityassurance. Due to its ultrafast response, the OXYMAT 6 is perfect formonitoring safety-relevant plants. The corrosion-proof design allowsanalysis in the presence of highly corrosive gases.

The OXYMAT 61 is a low-cost oxygen analyser for standard applications.The OXYMAT 64 is a gas analyzer based on ZrO2 technology to measuresmallest oxygen concentrations in pure gas applications.

ULTRAMAT 6 The ULTRAMAT 6 uses the NDIR measuring principle and can be used inall applications from emission monitoring to process control even in thepresence of highly corrosive gases.ULTRAMAT 6 is able to measure up to 4 infrared sensitive components ina single unit.

ULTRAMAT 6 /OXYMAT 6

Both analyzer benches can be combined in one housing to form a multi-component device for measuring up to two IR components and oxygen.

FIDAMAT 6 The FIDAMAT 6 measures the total hydrocarbon content in air or even inhigh-boiling gas mixtures. It covers nearly all requirements, from tracehydrocarbon detection in pure gases to measurement of high hydrocar-bon concentrations, even in the presence of corrosive gases.

In-situ Continuous Gas Analyzer (CGA)

LDS 6 LDS 6 is a high-performance in-situ process gas analyser. The measure-ment (through the sensor) occurs directly in the process stream,no extractive sample line is required. The central unit is separated fromthe sensor by using fiber optics. Measurements are carried out in real-time. This enables a pro-active control of dynamic processes and allowsfast, cost-saving corrections.

Fig. 8: Series 6 gas analyzer (field design) Fig. 9: LDS 6 in-situ laser gas analyzer


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Siemens Process Analytics at a glanceProducts (continued) and Solutions

Fig. 10: MAXUM edition II Process GC

Fig. 11: MicroSAM Process GC

Fig. 12: SITRANS CV Natural Gas Analyzer

Our solutionsAnalytical solutions are always drivenby the customers requirements. Weoffer an integrated design covering all

steps from sampling point and samplepreparation up to complete analysercabinets or for installation in analysershelters (fig. 14). This includes also sig-nal processing and communications tothe control room and process controlsystem.

We rely on many years of world-wideexperience in process automation andengineering and a collection of special-

ized knowledge in key industries andindustrial sectors. We provide Siemensquality from a single source with a func-tion warranty for the entire system.

Read more in "Our Services.

Fig. 14: Analyzer house (shelter)

Process Gas Chromatographs (Process GC)

MAXUM edition II MAXUM edition II is very well suited to be used in rough industrial envi-ronments and performs a wide range of duties in the chemical and pet-rochemical industries and refineries.

MAXUM II features e. g. a flexible, energy saving single or dual oven con-cept, valveless sampling and column switching, and parallel chromatog-raphy using multiple single trains as well as a wide range of detectorssuch as TCD, FID, FPD, PDHID, PDECD and PDPID.

MicroSAM MicroSAM is a very compact explosion-proof micro process chromato-graph. Using silicon-based micromechanical components it combinesminiaturization with increased performance at the same time.

MicroSAM is easy to use and its rugged and small design allows mount-ing right at the sampling point. MicroSAM features drastically reducedcycle times, provides valveless sample injection and column switchingand saves installation, maintenance, and service costs.

SITRANS CV SITRANS CV is a micro process gas chromatograph especially designedfor reliable, exact and fast analysis of natural gas. The rugged and com-pact design makes SITRANS CV suitable for extreme areas of use, e.g. off-shore exploration or direct mounting on a pipeline.

The special software "CV Control" meets the requirements of the naturalgas market, e.g. custody transfer.

Fig. 13: Product scope Siemens Process Gas Chromatographs


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Siemens Process Analytics at a glanceSolutions (continued) and Services

Our solutions ...

Analyzer networking fordata communicationEngineering and manufacturing of pro-cess analytical solutions increasinglycomprises "networking". It is getting astandard requirement in the processindustry to connect analyzers andanalyzer systems to a communicationnetwork to provide for continuous anddirect data transfer from and to theanalysers.The two objectives are (fig. 16):

To integrate the analyzer andanalyzer systems seamless into thePCS / DCS system of the plantand

To allow direct access to the analyzersor systems from a maintenancestation to ensure correct and reliableoperation including preventive orpredictive maintenance (fig.15).

Siemens Process Analytics provides net-working solutions to meet the demandsof both objectives.

Our ServicesSiemens Process Analytics is your com-petent and reliable partner world widefor Service, Support and Consulting.

Our rescources for that are

ExpertiseAs a manufacturer of a broad variety

of analyzers, we are very much expe-rienced in engineering and manufac-turing of analytical systems andanalyzer houses.We are familiar with communicationnetworks, well trained in service andmaintenance and familiar with manyindustrial pro cesses and industries.Thus, Siemens Process Analytics ownsa unique blend of overall analyticalexpertise and experience.

Global presenceWith our strategically located centersof competence in Germany, USA,Singapore, Dubai and Shanghai, weare globally present and acquaintedwith all respective local and regionalrequirements, codes and standards.All centers are networked together.

Fig. 16: Networking for DCS integration and maintenance support

Fig. 17: Portfolio of services

Fig. 15: Communication technologies


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Siemens Process Analytics at a glanceServices, continued

Our Services ...

Service portfolioOur wide portfolio of services is seg-mented into Consulting, Support andService (fig. 17 to 18). It comprisesreally all measures, actions and advisesthat may be required by our clientsthroughout the entire lifecycle of theirplant. It ranges from site survey toinstallation check, from instruction ofplant personnel to spare part stock man-agement and from FEED for ProcessAnalytics (see below) to internet-basedservice Hotline.

Our service and support portfolio(including third-party equipment) com-prises for example:

Installation check

Functionality tests

Site acceptance test

Instruction of plant personnel on site

Preventive maintenance

On site repair

Remote fault clearance

Spare part stock evaluation

Spare part management

Professional training center

Process optimisation

Internet-based hotline

FEED for Process Analytics

Technical consullting

FEED for Process AnalyticsFront End Engineering and Design(FEED) is part of the planning and engi-neering phase of a plant construction ormodification project and is done afterconceptual business planning and prior

to detail design. During the FEED phase,best opportunities exist for costs andtime savings for the project, as duringthis phase most of the entire costs aredefined and changes have least impactto the project. Siemens Process Analyt-ics holds a unique blend of expertise inanalytical technologies, applicationsand in providing complete analyticalsolutions to many industries.

Based on its expertise in analytical tech-nology, application and engineering ,Siemens Process Analytics offer a widescope of FEED services focused on anal-ysing principles, sampling technologies,application solutions as well as commu-nication system and given standards (allrelated to analytics) to support our cli-ents in maximizing performance andefficiency of their projects.

Whether you are plant operators orbelong to an EPC Contractor you willbenefit in various ways from FEED forProcess Analytics by Siemens:

Analytics and industry know howavailable, right from the beginningof the project

Superior analyzer system perfor-mance with high availability

Established studies, that lead to

realistic investment decisions Fast and clear design of the analyzer

system specifications, drawings anddocumentation

Little project management andcoordination effort, due to oneresponsible contact person andless time involvement

Additional expertise on demand,without having the costs, the effortand the risks of building up the capac-ities

Lowest possible Total Costs of Owner-ship (TCO) along the lifecycle regard-

ing investment costs, consumptions,utilities supply and maintenance.

Fig. 18: Portfolio of services provided by Siemens Process Analytics


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Siemens Process Analytics - Answers for industry

If you have any questions, please contact your local sales representative or any of the contact addresses below:

Siemens AGA&D SC PA, Process Analyticsstliche Rheinbrckenstr. 5076187 KarlsruheGermany

Phone:+49 721 595 3829Fax: +49 721 595 6375E-mail:[email protected]/prozessanalytics

Siemens Ltd., ChinaA&D SC, Process Analytics7F, China Marine TowerNo.1 Pu Dong AvenueShanghai, 200120P.R.China

Phone:+86 21 3889 3602Fax: +86 21 3889 3264E-mail: [email protected]

Siemens Energy & Automation Inc.7101 Hollister RoadHouston, TX 77040USA

Phone:+1 713 939 7400Fax: +1 713 939 9050E-mail: [email protected]

www.siemens.com/processanalytics

Siemens LLCA&D 2B.PO Box 2154,Dubai, U.A.E.

Phone:+971 4 366 0159Fax: +971 4 3660019E-mail: [email protected]/processanalytics

Siemens Pte. LimitedA&D SC PS/PA CoC60 MacPherson RoadSingapore 348615

Phone:+65 6490 8728Fax: +65 6490 8729E-mail: [email protected]

www.siemens.com/processanalytics

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