Discussion on the purification process for producing ethylene glycol from coke oven gas
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The ethylene glycol production capacity is planned at 400 kt/a, with the raw material being 3400 kt/a of coke oven gas generated in conjunction with coking processes; any shortfall will be made up by gas produced from rubber powder. By reviewing the existing data, it has been found that the hydrogen-carbon ratio is favorable after the non-catalytic conversion of coke oven gas using pure oxygen. Therefore, this process is intended to be utilized, with low-temperature methanol washing and deep cryogenic separation followed to separate CO and H2; nitrogen, which is difficult to separate, will be removed using molecular sieves. I’m not sure whether this process will work, so I would appreciate it if experts could give their feedback.
Are there any existing devices with such a matching setup? If so, please introduce them.