丝光沸石催化燃料油氧化深度脱硫及反应动力学  

Oxidation Desulfurization of Fuels and Its Kinetics Model over Mordenite Catalyst

作　　者：宋华[1] 王登[1] 李国忠[1] 柳艳修[1] 

机构地区：[1]东北石油大学化学化工学院,石油与天然气化工省重点实验室,黑龙江大庆163318

出　　处：《化学反应工程与工艺》2010年第5期442-446,共5页Chemical Reaction Engineering and Technology

摘　　要：以噻吩/石油醚模拟油为原料,丝光沸石为催化剂,研究了双氧水催化氧化深度脱硫技术。考察了催化剂及其用量、氧化剂用量、反应温度和反应时间对脱硫效果的影响,以及氧化反应的动力学。在噻吩/石油醚模拟油10 mL、双氧水0.04 mL、丝光沸石0.03 g、氧化温度60℃的反应条件下,氧化90 mln得到的产物采用剂油比为1的甲醇在室温下萃取15 min,噻吩/石油醚模拟油中的噻吩含量由200 mg/L降至23.2 mg/L,脱硫率可达到88.4%。噻吩氧化过程为二级反应,其反应活化能为6 290 kJ/kg。A method for deep oxidative desulfurization of thiophene/petroleum ether model oil was developmented using mordenite as catalyst and hydrogen peroxide as oxidant. The effects of the amount of the catalyst and oxidant, reaction temperature, reaction time on catalytic oxidative desulfurization were investigated. The reaction product was obtained under the conditions of thiophene/petroleum ether model oil 10 mL, hydrogen peroxide 0. 04 mL, mordenite 0. 04 g, oxidation temperature 60 ℃ and reaction time 90 min, then the reactant was extracted for 15 min at room temperature using methanol as the extractant with the solvent/oil volume ratio of 1, the sulfur content of the thiophene/petroleum ether model oil was reduced to 23. 2 mg/L from 200 mg/L, and the desulfurization ratio was 88.4 %. The kinetic study indicated that catalytic oxidation desulfurization of simulated oil was pseudo second-order reaction, which activation energy was 6 290 kJ/kg.

关 键 词：双氧水 氧化脱硫 丝光沸石 噻吩 动力学模型 

分 类 号：TQ028[化学工程] TE626.21[石油与天然气工程—油气加工工程]