国内外丁二烯抽提技术的比较

根据广州石化60万t/a乙烯改扩建的裂解C4产量及现有加工能力，需要新建一套13．5万t/a丁二烯抽提装置。通过对国内外的二甲基甲酰胺法、乙腈法、N-甲基吡咯烷酮法工艺路线进行技术比较，为分公司乙烯改扩建技术、商务谈判和确定最终的专利技术提供依据。

COMPARING BUTADIENE EXTRACTION TECHNOLOGIES AT HOME AND ABROAD

On considering both the existing processing capacity and the yield of cracked C4 requied by ethylene plant reconstruction and expansion of SINOPEC Guangzhou with annual processing capacity 0. 6 million tons, a new butadiene extraction unit with annual processing capacity of 135 thousand tons is needed to be built. By a comparing DMF, ACN and NMP processes at home and abroad, the basis is obtained to achieve successful technical and commercial negotiations and to make final selection of Patent technoLogies.