摘要
在小型固定床加氢装置上,用加氢精制催化剂和加氢裂化催化剂对陕北的中低温煤焦油进行加氢改质工艺研究.着重考察反应温度、反应压力、氢油体积比和液体体积空速对加氢效果的影响,得到了优化的工艺条件:反应压力14MPa,反应温度390℃,氢油体积比1600∶1,液体体积空速0.25h-1.加氢改质产品切割得到汽油、柴油和尾油馏分,分别占产物质量的9.82%,73.12%和16.43%.汽柴油馏分经过简单处理后可以得到合格的产品,加氢尾油可以作为优质的催化裂化或加氢裂化原料.
Study on hydrogenation of medium and low temperature coal tar from Shaanxi was carried out in fixed-bed hydrogenation unit using catalysts possessing properties of hydrofining and hy- drocracking. It has been emphasized to investigate the effect of reaction temperature, reaction pressure, volume ratio of hydrogen to oil, liquid hourly space velocity （LHSV） on hydrogena- tion. The optimum process conditions are. reaction pressure 14 MPa, reaction temperature 390 ℃ ,vo- lume ratio of hyrdogen to oil 1 600： 1 and LHSV 0.25 h-1. Under optimum conditions, mass fraction of gasoline was 9.82%, mass fraction of diesel oil was 73.12%, mass fraction of hydro- genation tail oil was 16.43%. Through a simple treatment,we can get qualified oil products from fraction of gasoline and diesel. The hydrogenation tail oil could be used as superior FCC or hydro- cracking feedstock.
出处
《煤炭转化》
CAS
CSCD
北大核心
2009年第4期81-84,共4页
Coal Conversion
基金
陕西省"13115"科技创新工程重大科技产业化项目(2008ZDKJ-50)
关键词
中低温煤焦油
加氢改质
汽油
柴油
medium and low temperature coal tar, hydro-upgrading, gasoline, diesel
