Hazrul Adzfar Bin Shabri 55201112104

Nur Irdani Idris 55201112111

Siti Norlaila Faeizah Binti Mohd Rudin 55202112056

CPB 20004 PLANT UTILITIES AND MAINTENANCE

ASSIGNMENT 1

Content

Introduction

Basic Process

Steam reforming

Water system

Fuel gas system

Steam system

Linde’s Engineering Hydrogen and Synthesis Gas Plant Gas processing plant Synthesis gas:

Mixture of gas containing primarily hydrogen, carbon monoxide and some carbon dioxide

Use in production of ammonia, methanol and synthetic natural gas

Hydrogen gas Used in production of ammonia, methanol etc

Introduction

Hydrogen plant in China built by Linde’s Engineering

1. Hydrodesulfurization of feed stock2. Steam reforming3. Heat recovery from reformed and from

combustion flue gas to produce process and export steam

4. Single stage adiabatic high temperature 5. CO-shift conversion6. Final hydrogen purification by pressure swing

adsorption

Basic process

Produce hydrogen from fuel gas and steam CH4+H20CO +3H2

Steam reforming

Utilities involved

Water System

Fuel System

Steam system

Using DEMINERALISED WATER. Produces high quality water free from any

kind of minerals. Uses specially-manufactured ion exchange

resins which provides ion exchange site for the replacement of the mineral salts in water with water forming H+ and OH- ions.

Water system

Feed water is passed through two small polystyrene beds filled with ion exchange resins.

The cations present in water get exchanged with hydrogen ions in first bed.

And the anions are exchanged with hydroxyl ions, in the second bed.

These units remove Cationic ions from the water

Then the water enters through the Strong Base Anions and Anions get removed from the water stream

Mixed Bed units polishes the water, greatly reducing the conductivity level

Finally the demineralized water is then passed to the storage tank

Consisting primarily of hydrogen, carbon monoxide, and some carbon dioxide.

To produce hydrogen using steam reforming method of natural gas or liquid hydrocarbons.

A device (reformer): reacts steams to high temperature produced by fossil fuel.

Fuel gas system

Steam system

Produced in steam generator, or boiler

1. Fire Tube Boiler

2. Water Tube Boiler

3. Packaged Boiler

4. Fluidized Bed (FBC) Boiler

5. Stoker Fired Boiler

6. Pulverized Fuel Boiler

7. Waste Heat Boiler

Steam generator: Device used to boil a water to create steam. heaters made with coils made of seamless tubes feed water is preheated and evaporated during the

flow The heat is transferred to the water/steam mixture

as radiant heat in the combustion chamber, inner cylindrical tube coil and a flat tube coil forms

the chamber wall and the bottom respectively.

Converts low pressure steam to high pressure steam

1. Dynamic1. Centifugal2. Axial

2. Positive displacement1. Reciprocating2. Rotary

Compressor

In conclusion plant utility is the heart of the plant serving all kinds of life blood to the complex system. Without them, most of the equipment cannot operate.

Basically all of the systems serve almost the same purposes depending on the type of operation.

Therefore, as chemical students, utilities in plant are one of the most important basics and fundamental in plant study that should be concerned about.

Conclusion

http://www.lindeengineering.com/en/process_plants/hydrogen_and_synthesis_gas_plants/index.html

http://www.lindeengineering.com/en/process_plants/hydrogen_and_synthesis_gas_plants/gas_products/index.html

References