Coke oven gas purification technology
The raw gas enters the room temperature renewable coke oven gas desulfurization unit to remove tar, aromatics and their derivatives. Hydrogen sulfide and various organic sulfurs, total sulfur is removed to ≤0.01ppmv, and then enter the heat transfer isothermal methanation unit to removeH2、CO、CO2,transform intoCH4Finally, pressure swing adsorption methane extraction technology is used to obtain natural gas that meets national standards.
Technical characteristics
High purification degree, the sulfur content of the combustion exhaust gas from the furnace gas reaches the national standard; no carbon supplement, no hydrogen enrichment, and all the effective gas is converted into methane;
Low purification cost;
Low reaction temperature, no circulating gas, no need to add steam;
pressure swing adsorption to purify methane, with high recovery rate, high purity and low operating cost.
Main performance index
Methanation temperature≤300℃;H2 、COandCO2,Full use
The methane recovery rate is ≥99%, and the product gas purity is 97-99% (adjusted according to user requirements).
Scope of application
Coke oven coal gas, calcium carbide tail gas and other industrial exhaust gas to produce natural gas
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