摘要
以塔河减压渣油为研究对象,通过高压釜反应模拟浆态床加氢反应过程,考察反应条件对塔河减压渣油加氢转化过程生焦率、转化率及产物分布的影响。结果表明,随反应温度的升高,渣油转化率及生焦率随之增加;氢初压的提高对生焦有明显的抑制作用,起初渣油转化率随之降低,当超过8 MPa时略有增加;反应时间的增加对渣油转化率及生焦都有促进作用;催化剂的存在可以抑制生焦反应,同时在一定程度上也抑制了裂化反应,应控制适量。综合考虑,确定适宜的反应条件为:反应温度不宜高于430℃,氢初压7～8 MPa,反应时间40～60 min,催化剂的加入量2 g/kg左右。
The hydroconversion of Tahe vacuum residue（THVR） was studied by using autoclave to simulate the reaction process in slurry-bed reactor.The effects of reaction conditions on coke formation rate,conversion and product distribution during THVR hydroconversion were investigated.Experimental results show that the conversion and coke yield increase with the reaction temperature;the increase of initial hydrogen pressure can suppress coke formation significantly,conversion decreases firstly,when the initial hydrogen pressure is more than 8 MPa,it increases slightly;prolonging reaction time,both conversion and coke yield increase.The presence of catalyst can inhibit the reactions of coke formation effectively,yet cracking reactions are affected as well,so the amount of catalyst added should be optimized.By comprehensive consideration,the suitable reaction conditions are selected as follows： reaction temperature should not be more than 430 ℃,initial hydrogen pressure between 7—8 MPa,reaction time between 40—60 min and catalyst added amount about 2 g/kg.
出处
《石油炼制与化工》
CAS
CSCD
北大核心
2012年第8期29-32,共4页
Petroleum Processing and Petrochemicals
关键词
渣油
浆态床
加氢改质
vacuum residue
slurry-bed
hydro-upgrading
作者简介
康丽丽，女，在读硕士，主要从事催化裂化及重油加工的基础研究工作。通讯联系人：康丽丽，E—mail：kang14117@126．com。
