摘要
用充分还原的低价态金属N i负载在钛酸锌或铁酸锌载体上制得催化裂化(FCC)汽油吸附脱硫剂颗粒。当硝酸镍的浸渍浓度约为10mol/L、浸渍时间1h、焙烧温度600℃和焙烧时间1h时,得到的吸附剂颗粒性能最佳。在固定床吸附器上,于350℃、0.75 MPa条件下吸附,汽油中硫含量可从744μg/g降至50μg/g以下,且再生后的吸附剂寿命仍达到150h。合适的氢油比可保证汽油辛烷值在89左右,油品液收率(质量分数)在98%左右;H2气尾气流量为400mL/min时较好。
Particulate sorbent with substantially reduced valence promoter metal nickel supported on Zinc Titanate or Zinc Ferrite provides a system for the desulfurization of a feed stream of FCC gasoline. The optimum preparation conditions for this sorbent were that the concentration of nickel nitrate was 10 mol/L, dipping time 1 h, baking temperature 600 ℃, and baking time 1 h. The sorbent exhibited an excellent desulfurization capacity in a fixed-bed absorber at 350 ℃ and 0. 75 MPa. Sulfur content in FCC e was reduced to 50 μg/g; the lifetime of the regenerated sorbent was 150 h; the octane number was about 89 when the ratio of H2/gasoline was optimum; the yield of can influence the effect of desulfurization. e was about 98 % ; the amount of end hydrogen （400 mL/min）
出处
《应用化学》
CAS
CSCD
北大核心
2008年第6期706-709,共4页
Chinese Journal of Applied Chemistry
基金
中国石油化工总公司重大攻关项目
关键词
脱硫
汽油
化学吸附
吸附剂
铁酸锌
desulfurization, gasoline, chemosorption, sorbent, Zinc Ferrite
