“CRG process”的概念、定义、翻译、参考文献-科学参考

CRG process

Chemistry

An industrial process for producing fuel gas from naphtha and other hydrocarbon sources. It involves a nickel-based catalyst, pressures of up to 70 bar, and temperatures between 250°C and 650°C depending on the feedstock. The reactions are:
$\begin{array}{l} C_{n} H_{2 n + 2} + n H_{2} O \to n CO + (2 n + 1) H_{2} \\ CO + 3 H_{2} \to {CH}_{4} + H_{2} O \\ CO + H_{2} O \to {CO}_{2} + H_{2} \end{array}$
The result is a mixture of methane, carbon monoxide, carbon dioxide, and trace amounts of ethane and other hydrocarbons. With partial carbon dioxide removal it is possible to produce town gas with medium calorific value containing about 30% CH₄, 30% H₂, and 2% CO. The process can be used to produce SNG. In this case there are multiple methanation stages and complete removal of CO₂ to give a product containing about 98.5% CH₄, 0.9% H₂, and 0.1% CO.

Chemical Engineering

A catalytic process used to produce fuel gas from naphtha, which is a light petroleum distillate. The naphtha is reacted with steam over a nickel-based catalyst at a temperature of up to 650ºC and pressure of 70 bar to produce a gas mixture that is rich in methane. Other gases in the product include carbon dioxide, carbon monoxide, and trace amounts of hydrocarbons. The process was superseded in the UK by the discovery of North Sea gas.

单词	CRG process
释义	CRG process Chemistry An industrial process for producing fuel gas from naphtha and other hydrocarbon sources. It involves a nickel-based catalyst, pressures of up to 70 bar, and temperatures between 250°C and 650°C depending on the feedstock. The reactions are: $\begin{array}{l} C_{n} H_{2 n + 2} + n H_{2} O \to n CO + (2 n + 1) H_{2} \\ CO + 3 H_{2} \to {CH}_{4} + H_{2} O \\ CO + H_{2} O \to {CO}_{2} + H_{2} \end{array}$ The result is a mixture of methane, carbon monoxide, carbon dioxide, and trace amounts of ethane and other hydrocarbons. With partial carbon dioxide removal it is possible to produce town gas with medium calorific value containing about 30% CH₄, 30% H₂, and 2% CO. The process can be used to produce SNG. In this case there are multiple methanation stages and complete removal of CO₂ to give a product containing about 98.5% CH₄, 0.9% H₂, and 0.1% CO. Chemical Engineering A catalytic process used to produce fuel gas from naphtha, which is a light petroleum distillate. The naphtha is reacted with steam over a nickel-based catalyst at a temperature of up to 650ºC and pressure of 70 bar to produce a gas mixture that is rich in methane. Other gases in the product include carbon dioxide, carbon monoxide, and trace amounts of hydrocarbons. The process was superseded in the UK by the discovery of North Sea gas.
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