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1. Coal properties and main chemical reactions
1.1 Typical composition of coals by source
The composition of coals varies considerably from one type to another, and has an influence on gasification reactions. Global analyses (proximate) give an indication of coal type and quality:
The first synthesis gas was produced by coal pyrolysis in the late 18th century. Gasification became a commercial process in 1812 with The London Gas, Light and Coke Company.
The first applications were lighting, followed by heating. Electricity generation is a much more recent development.
Coal gasification developed rapidly between 1940 and 1955, before the use of natural gas. During this period, it was developed mainly in the Federal Republic...
The Ultimate Scientific and Technical Reference
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Unit operations. Chemical reaction engineering
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Coal properties and main chemical reactions
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Also in our database
Bibliography
Websites
Gazeification Technology Council https://globalsyngas.org/
Standards and norms
- Standard Test Method for Volatile Matter in the Analysis Sample of Coal and Coke - ASTM D 3175 - 2007
Directory
Gasification technology suppliers (non-exhaustive list)
Shell http://www.shell.com/home/content/global_solutions/
General Electrics http://www.gepower.com/prod_serv/products/gasification/en/overview.htm
...Economic data
A set of economic data is provided in table 1 . It should be noted that the cost of producing syngas from coal is close to that of natural gas (average for Europe 2007-2008: $15/GJ), provided that coal is available at a price below the market price.
The list of coal gasification units...
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