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石油路线乙二醇技术:乙烯经氧化得到环氧乙烷,再进一步水合得到乙二醇;煤化工路线乙二醇技术:煤气化获得CO和H2,由CO气相催化合成草酸酯,草酸酯再经催化加氢合成乙二醇。
Ethylene glycol technology of petroleum route: Ethylene is oxidized to obtain ethylene oxide, and then further hydrated to obtain ethylene glycol; Coal Chemical Industry Route Ethylene Glycol Technology: Coal gasification to obtain CO and H2, Synthesis of oxalic acid ester from CO gas phase, Oxalic acid Ester and then catalytic hydrogenation of ethylene glycol.