铜取代杂多金属氧酸盐对催化裂化柴油氧化脱硫的催化作用  

CATALYSIS OF COPPER SUBSTITUTED HETEROPOLYOXOMETALATE IN OXIDATIVE DESULPHURIZATION OF CATALYTIC CRACKED DIESEL FUEL

作　　者：李保山[1] 戴仲娟[1] 

机构地区：[1]北京化工大学化工资源有效利用国家重点实验室,北京100029

出　　处：《石油炼制与化工》2008年第9期17-20,共4页Petroleum Processing and Petrochemicals

基　　金：国家自然科学基金项目(59871014)

摘　　要：用一步合成法制备了铜取代杂多金属氧酸盐[(C_4H_9)_4N]_4H[PW_(11)CuO_(39)]催化剂,并用红外及紫外光谱对催化剂进行了表征。以正辛烷为溶剂、噻吩为含硫模型化合物配制的模拟油为原料,用30%过氧化氢为氧化剂进行催化氧化脱硫实验,考察催化剂用量、过氧化氢用量、反应温度及反应时间对脱硫效果的影响。结果表明,在催化剂用量为4%、剂油比为2.5、反应温度60℃、反应时间120min 的条件下,模拟油中的硫含量可从1052mg/L 降至33mg/L。在反应温度为70℃、其它条件与模拟油实验基本相同时,催化裂化柴油中硫含量可从4100mg/L 降至982mg/L。A catalyst[（C4H9）4N]4H[PW11CuO39] was prepared by one-step synthesis method and its structure was characterized by FT-IR and UV techniques. Using model oil（thiophene in n octane） as feed and 30% hydrogen peroxide as oxidant,the oxidative desulfurization tests were carried out and the effects of catalyst dosage,the ratio of oxidant to feed,reaction temperature and reaction time on the desulphurization were investigated. The test results showed that under the optimum reaction conditions of a catalyst dosage of 40/oo （the mass ratio of catalyst to model oil） ,a molar ratio of effective oxygen in oxidant to the sulfur in oil of 2. 5,a reaction temperature of 60 ℃ and a reaction time of 120 min,the sulfur content of model oil could be reduced from 1 052 mg/L to 33 mg/L. The sulfur content of a catalytic cracked diesel fuel could be decreased from 4 100 mg/L to 982 mg/L under the basically same reaction conditions for model oil with an exception of a reaction temperature of 70 ℃.

关 键 词：杂多金属氧酸盐 催化剂 催化氧化 柴油 脱硫 

分 类 号：TE624.55[石油与天然气工程—油气加工工程]