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LEADERS Physics - Chapter 2.10
Chapter 2.10 - Coal Gasification and Liquefication
13
Physics
Graduate
06/20/2010

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Term
What can coal gasification lead to?
Definition
Alternative ways of using coal; less air pollution
Term
What are the advantages to coal gasification?
Definition
1. Relative abundance
2. Domestic supply
3. Reduce critical balance of payments problem
Term
What is coal gasification?
Definition
The chemical transformation of solid coal into a gas
Term
Coal Gasification is composed of what?
Definition
Methane; Virtually free of sulfur; No carbon monoxide or free hydrogen
Term
What is Coal Gasification often called?
Definition
Synthetic Natural Gas (SNG)
Term
What does coal gasification require?
Definition
The addition of hydrogen to coal
Term
Name the coal gasification process:
Definition
1. Coal is ground into a powder
2. Then it penetrated with air or oxygen.
3. The device used here is the gasifier
4. Once coal enters the gasifier, it is heated to drive off volatile constituents
5. Char is left behind
Term
what is char?
Definition
Solid residue left behind after de-volatization during coal gasification
Term
Char is reacted with superheated steam to form what?
Definition
synthetic gas
Term
What can coal be converted into?
Definition
Liquid hydrocarbons: suitable for producing gasoline and other products normally obtained from petroleum
Term
What is water gas?
Definition
When coke and steam are brought together
Term
What is the solvent refined process?
Definition
Method of removing sulfur from coal
Term
Can liquids produced from direct hydrogenation be used as feed for a conventional petroleum refinery?
Definition
No
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