申请人:Baker Hughes, a GE company, LLC
公开号:US10093868B1
公开(公告)日:2018-10-09
Treatment of hydrocarbon streams, e.g. gasoline, with basic ionic liquids (ILs), results in reduction of the sulfur compounds such as H2S thiophenes, disulfides, thioethers, and/or mercaptans that are present to remove these compounds. The IL is a quaternary ammonium compound having the formula R4N+ X− or X− R3N+R′N+R3 X−, where R is independently an alkyl group, an alkylbenzyl group, a hydroxyalkyl group, or a hydroxyalkylbenzyl group, and R is straight or branched and has 1-22 carbon atoms, R′ is a straight or branched alkylene or oxyalkylene having 1 to 10 carbon atoms, and where X− can be hydroxide, carbonate, alkylcarbonate, bicarbonate or alkoxide, where the alkyl group of the alkylcarbonate or alkoxide, if present, is straight or branched and has 1 to 8 carbon atoms. The ILs can be used in applications where liquid or gaseous hydrocarbon fluids are treated by direct injection or by extraction.
用碱性
离子液体(IL)处理碳氢化合物流(如汽油),可还原
硫化合物(如
H2S 硫代
噻吩、二
硫化物、
硫醚和/或
硫醇),从而去除这些化合物。IL 是一种季
铵盐化合物,其式为 R4N+ X- 或 X- R3N+R′N+R3 X-,其中 R 独立地为烷基、烷基苄基、羟基烷基或羟基烷基苄基,R 为直链或支链,具有 1-22 个碳原子、R′ 是直链或支链亚烷基或氧基亚烷基,具有 1 至 10 个碳原子,其中 X- 可以是氢氧化物、
碳酸盐、烷基
碳酸盐、
碳酸氢盐或烷氧基,其中烷基
碳酸盐或烷氧基的烷基(如果存在)是直链或支链的,具有 1 至 8 个碳原子。ILs 可用于直接注入或萃取处理液态或气态烃类流体。