filtering e ngx brochure

7/23/2019 Filtering e Ngx Brochure

1/8

Natural Gas Dryers for NGV Fueling Statio

NG SOLUTIONS

www.xebecinc.co


2/8

NG SOLUTIONS

Dying ntul gs o todys NGV uling sttions

What you need to know...

ISO 15403:2000 Th singl most imotnt sty quimnt

ISO 15403:2000 (E) standard states (paragraph 5.1): The single most important saety requirement o compressed naturalgas (CNG) uel is a very low water dew point temperature to preclude the ormation o liquid water at any time. Liquid water is

the precursor to the ormation o corrosive compounds through combination with components in natural gas, namely carbondioxide and hydrogen sulphide. The combination o corrosive agents, and the pressure cycling, caused by uel consumption andsubsequent relling o the uel storage container, can result in crack growth in metals and ultimately damage and ailure. Also,liquid water itsel can be detrimental as it may cause blockages, both liquid and solid, in the uel system.

Thus, the water dew point o the uel gas at the ueling station outlet shall be suciently below the lowest ambient temperaturein which the ueling station and vehicles will operate.

I you think you gs is dy, you nd to d this

As the eects o moisture in natural gas systems are not always immediately evident, some NGV station builders are reluctantto address the importance o installing desiccant dryer systems in CNG uelling stations. This is despite the act that there areindustry standards and recommended practices or the required dew point o compressed natural gas used or uelling stations,

such as ISO 15403:2000(E).

The most common reason or not installing dryers in NGV stations is the belie that the gas is already dry. However, it should betaken into consideration that although the gas dew point may be as low as -40C in the pipeline at pipe pressure, the eects ocompression will aect the dew point o the gas.

Physical laws dictate that the dew point o a gas increases as its pressure increases. Thereore, although the dew point o thegas in a given pipeline may be very low when it reaches the compressor, it will be signicantly higher when the gas leaves thecompressor. This is why natural gas desiccant dryers are required in the majority o NGV stations in order to conorm to theISO 15403:2000(E) standard, specically in areas where lower temperatures are encountered during the colder winter months.

Sution sid vsus high ssu dishg dying thnology

Higher concentration o water vapor per volume o gas, caused by high compressor discharge temperatures, aects the

adsorption eciency o desiccant dryers which are installed on the pressure discharge side. Oil vapor ound at the outlet o theoil-lubricated compressor can contaminate the desiccant and cause dew point collapse. Lower temperatures and oil vapor reegas on the suction side result in better dryer perormance and lower maintenance cost.

Allowing wet gas to enter the compressor is undesirable, as most reciprocating compressors are extremely sensitive to liquidwater entering the compression cylinders, which can have catastrophic results on the entire compressor.

Pressure swing dryers use 10 15% o the dry gas rom their outlet to regenerate the o-line tower. This used gas must then berecovered on the suction side o the compressor, increasing its size and decreasing the output to the storage vessels and dispensers.This is not an economical solution as compared to the suction side dryer which does not utilize any purge gas.

2


3/8


4/8

Xebec aDSOrpTION INc. | 730 Boul. Industriel, Blainville (Quebec) CANADA J7C 3V4Toll F: 1-877-GO-XEBEC | phon: (450) 979-8700 | Fx: (450) 979-7869 | emil: [email protected]

STVNGX bsi Singl Tow Ntul Gs Dys

Ftus:

Low cost, low capacity basic package

External regeneration or desiccant replacement required

AutoDew is a highly recommended option

alitions:

Low to medium fows

Low to high pressure designs

Recommended or low throughput (water content) ueling needs

Maximum operating pressure = 135 psig (5 psig minimum). Higher operating pressures available upon request.CF = Consult Factory1 Flow conditions given or reerence only. Please consult actory or accurate sizing.

Modl No conntioncity (ox)

MMScF @ 7#H2O/MMScF(e3Nm3@ 112 mg H2O/m3) 1

Inlt Gs Flow(ox)

sm (Nm3/h)@ 100 sig (7 g) 1

aoximt Wight & Dimnsions

Widthinhs (mm)

Lngthinhs (mm)

Hightinhs (mm)

Wightls (kg)

STV6NGX-0.5 1/2" NPT 0.5 (13) 58 (93) 15 (381) 23 (584) 66 (1676) 250 (114)

STV8NGX-1 1" NPT 0.7 (19) 105 (169) 18 (457) 23 (584) 66 (1676) 350 (160)

STV10NGX-1 1" NPT 1.5 (40) 164 (264) 18 (457) 28 (711) 90 (2286) 600 (273)

STV14NGX-1.5 1-1/2" NPT 3.0 (80) 386 (620) 33 (838) 38 (965) 89 (2261) 900 (409)

STV14NGX-2 2" NPT 3.0 (80) 472 (759) 33 (838) 38 (965) 89 (2261) 900 (409)

STV18NGX-1.5 1-1/2" NPT 5.0 (134) 386 (620) 38 (965) 39 (991) 90 (2286) 1500 (682)

STV18NGX-2 2" NPT 5.0 (134) 636 (1022) 38 (965) 39 (991) 90 (2286) 1500 (682)

STV24NGX-2 2" NPT 10.0 (268) 636 (1022) 44 (1118) 44 (1118) 91 (2311) 2000 (910)

STV24NGX-3 3" FLG 10.0 (268) 1235 (1985) 53 (1346) 63 (1600) 92 (2337) 2200 (1000)

STV30NGX-2 2" FLG 15.1 (405) 636 (1022) 45 (1143) 46 (1168) 99 (2515) 2500 (1136)

STV30NGX-3 3" FLG 15.1 (405) 1402 (2253) 56 (1422) 63 (1600) 103 (2616) 2700 (1227)

STV36NGX-3 3" FLG 22.5 (603) 1402 (2253) CF CF CF CF

STV36NGX-4 4" FLG 22.5 (603) 2415 (3882) CF CF CF CF

autoDw otion:AutoDew is a precision dew point monitor with digital dew point indication (in C or F) installed at the dryercontrol panel. The AutoDew hygrometer displays the dew point data on a monitor on a NEMA 4 enclosure. The moisture sensor isinstalled at the dryer outlet to continuously veriy the dew point. Two AutoDew hygrometer set points are actory adjusted: the rst tosignal deteriorating dew point perormance and the second when regeneration is required. A set o orm C dry contacts are providedor remote signal monitoring. Alarm settings typically conorm to SAE J1616 or each installation.

4


5/8

Ftus:

Comprehensive range o rugged, skid mounted single anddual tower regenerable natural gas dryers

Closed loop, operator initiated heat reactivated regeneratedcycles or reliable dryer regeneration control and shutdown

AutoDew is a standard eature and will signal whenregeneration is required

alitions:

Medium to high fows


Recommended or medium throughput ueling needs

Minimum downtime (no downtime required or duplex model)


STRNGX rgnl Singl Tow Ntul Gs Dys

also vill: A duplex version has an additional drying tower to eliminate downtime when regeneration is necessary.Switching between towers is perormed manually.



Inlt Gs Flow(ox)

sm (Nm3/h)@ 100 sig (7 g) 1


Widthinhs (mm)

Lngthinhs (mm)

Hightinhs (mm)

Wightls (kg)

STr14NGX-1.5 1-1/2" FLG 3.0 (80) 386 (620) 68 (1727) 83 (2108) 95 (2413) 2800 (1273)

STr14NGX-2 2" FLG 3.0 (80) 472 (759) 68 (1727) 83 (2108) 95 (2413) 2800 (1273)

STr18NGX-1.5 1-1/2" FLG 5.0 (134) 386 (620) 68 (1727) 83 (2108) 95 (2413) 3100 (1409)

STr18NGX-2 2" FLG 5.0 (134) 636 (1022) 68 (1727) 83 (2108) 95 (2413) 3100 (1409)

STr24NGX-2 2" FLG 10.0 (268) 636 (1022) 68 (1727) 83 (2108) 97 (2464) 4000 (1818)

STr24NGX-3 3" FLG 10.0 (268) 1235 (1985) 68 (1727) 83 (2108) 96 (2438) 4000 (1818)

STr30NGX-2 2" FLG 15.1 (405) 636 (1022) 71 (1803) 84 (2134) 104 (2642) 3570 (1623)

STr30NGX-3 3" FLG 15.1 (405) 1402 (2253) 71 (1803) 84 (2134) 104 (2642) 3570 (1623)

STr36NGX-3 3" FLG 22.5 (603) 1402 (2253) 96 (2438) 108 (2743) 126 (3200) 6600 (3000)

STr36NGX-4 4" FLG 22.5 (603) 2415 (3882) 99 (2515) 108 (2743) 126 (3200) 6600 (3000)

Maximum operating pressure = 135 psig (5 psig minimum). Higher operating pressures available upon request.1 Flow conditions given or reerence only. Please consult actory or accurate sizing.


6/8


DTRNGX rgnl Twin Tow Ntul Gs Dys

Ftus:

Twin tower

Simplied design ully automatic regeneration

Compact design

All models complete with regeneration package

Limited in pressure and fow capacity

AutoDew is standard

alitions:

Low to medium fows

Low to medium pressure designs

Recommended or medium throughput ueling needs

No downtime




Inlt Gs Flow(ox)

sm (Nm3/h)@ 100 sig (7 g) 1


Widthinhs (mm)

Lngthinhs (mm)

Hightinhs (mm)

Wightls (kg)

DTra14NGX-1.5 1-1/2" FLG 3.0 (80) 386 (620) 81 (2057) 88 (2235) 96 (2438) 4090 (1860)

DTra14NGX-2 2" FLG 3.0 (80) 472 (759) 81 (2057) 88 (2235) 96 (2438) 4090 (1860)

DTra18NGX-1.5 1-1/2" FLG 5.0 (134) 386 (620) 86 (2184) 88 (2235) 96 (2438) 4818 (2190)

DTra18NGX-2 2" FLG 5.0 (134) 636 (1022) 86 (2184) 88 (2235) 96 (2438) 4818 (2190)

DTra24NGX-2 2" FLG 10.0 (268) 636 (1022) 90 (2286) 130 (3302) 113 (2870) 5610 (2550)

DTra24NGX-3 3" FLG 10.0 (268) 1235 (1985) 90 (2286) 130 (3302) 113 (2870) 5610 (2550)

DTra30NGX-2 2" FLG 15.1 (405) 636 (1022) 90 (2286) 150 (3810) 113 (2870) 7040 (3200)

DTra30NGX-3 3" FLG 15.1 (405) 1402 (2253) 90 (2286) 150 (3810) 113 (2870) 7040 (3200)

6


7/8


Ftus:

Designed and engineered or large fowsand continuous duty cycles

Fully automatic and maximized desiccant regeneration,dew point perormance and energy eciency

Large LCD text display shows dryer statusand alarms at all times

Custom designed to meet all levels o specications

AutoDew is standard

alitions:

Medium to high fows


Recommended or mediumto high throughput ueling needs

No downtime

HRBNGX Fully automti Ht rtivtdTwin Tow Ntul Gs Dys




Inlt Gs Flow(ox)

sm (Nm3/h)@ 100 sig (7 g) 1


80HrbNGX 2" FLG 10.0 (268) 636 (1022) Consult actory or dimensions









8/8

X flttion solutions inlud: Wid ng o ssois vill:

Gas lters

Engineered anged lters

Water separators

High pressure lters

Stainless steel process lters

Landll and biogas lters

Filter elements

Dew point sensors

Desiccant

Drains

Valves

Differential pressure switches

Pressure gauges

www.xebecinc.com

committd to fst lss ustom svi.

cll Toll-F: 1-877-GO-XEBECemil: [email protected]

Xebec stands behind the service, spare parts

and technical support needed to ensure

the most complete and eective solution

or every installation throughout the world.

SaLeS OFFIceSblinvill, Qu, caNaDa

730 Boul. Industriel, J7C 3V4

Phone: (450) 979-8700

Email: [email protected]

buny, bitish columi, caNaDa

6961 Russell Avenue, V5J 4R8

Phone: (604) 454-1134


Nwstl, UNITeD KINGDOM

Quorum 16, Balliol Business Park East

Benton Lane, NE12 8BX

Phone: +44 (0) 191 215 5070


Shnghi, cHINa

No. 92 Jiang Tian Dong Road

Songjiang Industrial Zone

Phone: +86 21 3352 8700


SINGapOre

No. 63 Ubi Ave 1, #06-05

Boustead House, 408937

Phone: +65 6748 7988


XEBEC ADSORPTION INC. WORLDWIDE CORPORATE HEADQUARTERS

730 Boul. Industriel, Blainville, Quebec J7C 3V4 Canada

Toll Free: 1-877-GO-XEBEC

Phone: (450) 979-8700

Fax: (450) 979-7869

Email: [email protected]: www.xebecinc.com

filtering e ngx brochure

Documents