第二代催化裂化汽油选择性加氢脱硫(RSDS-Ⅱ)技术的中试研究及工业应用

DEVELOPMENT AND COMMERCIAL APPLICATION OF RSDS-Ⅱ TECHNOLOGY

对催化裂化汽油中硫化物及烃类分布进行详细分析,确立第二代催化裂化汽油选择性加氢脱硫(RSDS-Ⅱ)技术的工艺路线。中试试验结果表明,RSDS-Ⅱ技术对多种原料油具有较好的适应性。工业应用标定结果表明,以烯烃体积分数38.7%～43.3%、硫质量分数250～470μg/g的催化裂化汽油为原料,经过RSDS-Ⅱ技术处理后汽油产品硫质量分数小于50μg/g,满足沪Ⅳ/欧Ⅳ排放标准,RON损失0.3～0.6个单位,说明RSDS-Ⅱ技术具有较好的脱硫活性和较高的选择性,完全可以满足炼油厂汽油质量升级的需要。

The 2nd generation of selective hydrodesulfurization technology （RSDS-Ⅱ）was developed based on an investigation of the distributions of sulfur compounds and hydrocarbons in FCC gasoline. Pilot plant test results show that RSDS-Ⅱtechnology possesses good adoptability to various feedstocks. The results of commercial performance test show that processing feedstock with olefin volume fraction of 38. 7%- 43. 3% and sulfur mass fraction of 250 47μg/g,the sulfur content of the treated gasoline is less than 50μg/g,which well meets the exhaust requirements of EuropeⅣ and Shanghai Ⅳ, and the loss of RON is only 0. 3--0. 6 units. Due to the high HDS activity and good selectivity,RSDS-Ⅱtechnology is effective for gasoline upgrading.