Can mixed gas be liquefied?
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Help: Can mixed gas be liquefied? For example, blast furnace gas, coke oven gas, water gas, semi-water gas, etc
Liquefaction has requirements for the components of the feed gas, such as H2O, CO2, Hg, H2S, total sulfur, and heavy hydrocarbons. Blast furnace gas, coke oven gas, water gas, and semi-water gas contain large amounts of CO and H2; these can be physically separated or subjected to methanation, with the production of LNG from coke oven gas serving as a reference.
Pre-treatment is required before liquefaction. Is the density of gas expressed as a value relative to the density of water?
Hehe, it seems that this value doesn’t exist in theory either; I’m not sure, so I’m asking.
For gases, the relative vapor density can be used (with air = 1), while for liquid gases (such as liquefied gas/LNG), the relative water density can be used.
Yes, so my question is: can mixed gas be liquefied as a whole? Because if it can be fully liquefied, there will be a relative water density value. If overall liquefaction is not possible, there is no relative water density value. In the SDS of chemicals, for those substances that are gases under normal conditions, there is a relative density value with respect to water. For example, the relative density of methane (water = 1): 0.42 (-164°C)
Can mixed gas be liquefied as a whole? It’s possible in theory, but it’s not cost-effective. The liquefaction of coke oven gas is aimed at making efficient use of the by-product coke oven gas, thereby improving the economic efficiency of coking plants and reducing environmental pollution.