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四氟乙烯（TFE）是由二氟一氯甲烷（HCFC－２２）裂解而来。HCFC－２２的裂解多采用水蒸汽稀释裂解或空管裂解工艺。由于水蒸汽稀释裂解较空管裂解有以下优点：（１）原料转化率高，（２）原料消耗低，（３）高沸物残液量少，（４）裂解反应器结构简单、运行可靠、不易结焦、维
Tetrafluoroethylene (TFE) is cleaved from difluorochloromethane (HCFC-22). HCFC-22 cracking mostly steam diluted pyrolysis or empty pipe cracking process. (1) high conversion rate of raw materials, (2) low consumption of raw materials, (3) low residual amount of high-boiling residue, (4) simple and reliable operation of the pyrolysis reactor , Not easy to coking, dimensional