催化裂化汽油吸附脱硫反应工艺条件的探讨

中国石油化工股份有限公司北京燕山分公司炼油二厂采用美国Conoco Phillips公司的汽油吸附脱硫技术(S-Zorb),对FCC全馏分汽油进行脱硫处理,以满足日益严格的排放标准。通过对各工艺参数的考察,得出适宜的工艺条件为:反应温度425～435℃,氢油比0.31～0.34,待生吸附剂载硫量9%～10%,再生吸附剂载硫量5%～6%。实际工业应用表明,在合适的工艺条件下,FCC全馏分汽油的脱硫率可达97%以上,产品硫质量分数可降至10μg/g以下,而道路辛烷值损失小于0.5。

Study on process conditions of adsorption desulfurization reaction of FCC gasoline

SINOPEC Beijing Yanshan Company has adopted adsorption desulfurization process of Conoco Phillips Company(S-Zorb) to reduce the sulfur in FCC naphtha and to meet the stringent emission specifications. The process parameters have been investigated in commercial unit and optimized process conditions of S-Zorb unit are found to be;the reaction temperature is 425-435℃,the hydrogen to oil ratio is 0.31-0.34, the spent sorbent s sulfur loading is 9%-10%and the regenerated sorbent s sulfur loading is 5%-6%.The res...