微波作用下二硫代氨基甲酸盐脱除重质原油中的镍钒

摘要

研究了微波强化作用下二硫代氨基甲酸盐 NS 系列化合物对新疆重质原油的脱镍钒效果。合成了具有—CSS—配位基团的 NS 系列化合物，该系列产物分子结构中—CSS—配位基团，可以与原油中的镍和钒发生配位反应形成水溶性化合物从而从原油中脱除。对于原油脱镍钒效果为 NS3>NS2>NS4>NS1，在微波强化作用下NS3脱镍钒剂对原油脱镍钒的实验表明，NS3加入量为200mg/L，微波时间为3min，微波功率为700W，反应温度为90℃和反应时间为20min的条件下，原油中镍和钒的脱除率分别为79.8%和82.4%，微波强化作用后原油的脱镍钒效率增加。%This paper describes the effect of dithiocarbamate compounds on nickel and vanadium removal from Xinjiang heavy crude oil under microwave condition. A series of dithiocarbamate NS compounds with—CSS— coordination group were synthesized,which can be used to remove nickel and vanadium from crude oil by complexing reaction. In comparison with different NS compounds,the effect on nickel and vanadium removal was evaluated,which follows the order of NS3>NS2> NS4>NS1. Moreover,under microwave condition with 700W power for 3min and reaction temperature of 90℃ for 20min,200mg/L NS3 were reacted with crude oil,and the removal effect of nickel and vanadium from crude oil were 79.8% and 82.4%,respectively. Therefore,the results indicate that microwave condition can facilitate removal effect of nickel and vanadium.