FDHC柴油中压加氢裂化技术的开发

为了满足炼油企业减产柴油、降低柴汽比的产品结构调整需求,中国石化抚顺石油化工研究院开发了FDHC柴油中压加氢裂化技术。该技术采用加氢裂化-补充精制工艺流程,解决了中压加氢裂化喷气燃料馏分烟点偏低和装置运行末期产品质量下降等难题,通过优化原料构成、催化剂体系和操作参数,使之适用于加工直馏柴油原料,灵活增产优质喷气燃料产品、重整原料和蒸汽裂解制乙烯原料。生产的喷气燃料馏分烟点可达28.1 mm,可作为优质3号喷气燃料;未转化柴油馏分BMCI可达9.5,可作为优质的蒸汽裂解制乙烯原料。

DEVELOPMENT OF FDHC TECHNOLOGY FOR DIESEL MIDDLE-PRESSURE HYDROCRACKING

To reduce the diesel/gasoline ratio, SINOPEC Fushun Research Institute of Petroleum and Petrochemicals has developed a diesel middle pressure hydrocracking FDHC technology, consisting of hydrocracking and hydrorefining processes. The problems of lower smoke point of jet fuel produced by middle pressure hydrocracking process and the quality reduction of products at the end of running are solved. The optimized catalyst system, feedstocks, and operation conditions make the FDHC technology suitable to process straight-run diesel fraction, meanwhile the high quality jet fuel, feedstocks for catalytic reforming and steam cracking can flexibly be produced. The smoke point of jet fuel produced reaches 28.1 mm, which can be used as 3# jet fuel. The BMCI of unconverted diesel oil is only 9.5, a high quality feed for steam cracking unit.