摘要
针对柴油加氢脱硫技术设备投资和操作费用高,柴油H2O2氧化脱硫技术又存在氧化剂价格高、柴油收率低和有含硫污水排放等技术经济问题,开发了一种新型直馏柴油催化氧化脱硫方法,在此为其中试试验研究。直馏柴油催化氧化脱硫中试装置由催化氧化反应、催化剂再生回收、萃取脱硫与萃取剂回收等四个单元组成;反应器为静态混合反应器;在建立的中试装置上对直馏柴油催化氧化脱硫操作条件进行了优选实验:在表观停留时间3～5min、反应温度60℃、反应物料循环量1000L/h、氧化催化剂/柴油体积比为0.24和柴油/萃取剂体积比为2.5的最佳实验操作条件下,成品柴油的硫含量从2273μg/g降到106μg/g,柴油硫含量符合欧洲Ⅱ类柴油标准(≤300μg/g),脱硫率达到95.34%,柴油收率为97.23%。
Adopting the straight-run diesel catalytic oxidation desulphurization pilot facility and under the condition that the reactor is the static state one, the apparent time is 3～5 minutes, the reaction temperature is 60℃, the materiel circulation is 1 000 L/h, the ratio of the TS-2 oxidation catalysis to the diesel is 0.24, the ratio of the diesel to the EA-1 extractant is 2.5 ∶1, the pilot test of straight-run diesel is conducted for catalyzing-oxidate desulphurization. The production analysis and the qualification indicate that at the aforesaid condition, the main dibenzothiophene sulfide in the diesel are moved out; mixing the sulfide-enriched diesel with the catalytic diesel with the volume rate of one to ten and at the simulation conditions of the diesel hydrodesulphurization operation in the Lanzhou refinery, the sulfide in the sulfide-enriched diesel declines to 800 μg/g from 2 500 μg/g。The sulfide-enriched diesel can be used as the raw material of the catalytic-cracking diesel′s hydrogenization facility.
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2007年第4期114-117,共4页
Journal of Southwest Petroleum University(Science & Technology Edition)
基金
中国石油天然气股份公司项目(010802-12)
关键词
柴油
催化氧化
脱硫
中试装置
实验研究
diesel
catalytic oxidation
desulphurization
analysis and test
hydrodesulphurization
