“SNG”的概念、定义、翻译、参考文献-科学参考

SNG

Chemistry

Substitute (or synthetic) natural gas; a mixture of gaseous hydrocarbons produced from coal, petroleum, etc., and suitable for use as a fuel. Before the discovery of natural gas coal gas was widely used as a domestic and industrial fuel. This gave way to natural gas in the early part of this century in the US and other countries where natural gas was plentiful. The replacement of coal gas occurred somewhat later in the UK and other parts of Europe. More recently, interest has developed in ways of manufacturing hydrocarbon gas fuels. The main sources are coal and the naphtha fraction of petroleum. In the case of coal three methods have been used:
1. (1) pyrolysis – i.e. more efficient forms of destructive distillation, often with further hydrogenation of the hydrocarbon products;
2. (2) heating the coal with hydrogen and catalysts to give hydrocarbons – a process known as hydroliquefaction (see also Bergius process);
3. (3) producing carbon monoxide and hydrogen and obtaining hydrocarbons by the Fischer–Tropsch process.
SNG from naptha is made by steam reforming. See CRG process.

Chemical Engineering

An abbreviation for synthetic natural gas or substitute natural gas, which is a gas that is produced from coal, petroleum coke, solid waste, or biomass. Carbon-containing coal is gasified to produce syngas that is then converted to methane. In the steam-oxygen gasification process, coal is gasified with steam and oxygen to produce carbon monoxide, hydrogen, carbon dioxide, methane, and higher hydrocarbons such as ethane and propane. The composition of SNG is dependent on the temperature and pressures used in the gasifier conditions.

单词	SNG
释义	SNG Chemistry Substitute (or synthetic) natural gas; a mixture of gaseous hydrocarbons produced from coal, petroleum, etc., and suitable for use as a fuel. Before the discovery of natural gas coal gas was widely used as a domestic and industrial fuel. This gave way to natural gas in the early part of this century in the US and other countries where natural gas was plentiful. The replacement of coal gas occurred somewhat later in the UK and other parts of Europe. More recently, interest has developed in ways of manufacturing hydrocarbon gas fuels. The main sources are coal and the naphtha fraction of petroleum. In the case of coal three methods have been used: (1) pyrolysis – i.e. more efficient forms of destructive distillation, often with further hydrogenation of the hydrocarbon products; (2) heating the coal with hydrogen and catalysts to give hydrocarbons – a process known as hydroliquefaction (see also Bergius process); (3) producing carbon monoxide and hydrogen and obtaining hydrocarbons by the Fischer–Tropsch process. SNG from naptha is made by steam reforming. See CRG process. Chemical Engineering An abbreviation for synthetic natural gas or substitute natural gas, which is a gas that is produced from coal, petroleum coke, solid waste, or biomass. Carbon-containing coal is gasified to produce syngas that is then converted to methane. In the steam-oxygen gasification process, coal is gasified with steam and oxygen to produce carbon monoxide, hydrogen, carbon dioxide, methane, and higher hydrocarbons such as ethane and propane. The composition of SNG is dependent on the temperature and pressures used in the gasifier conditions.
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