| 摘要 |
595818 This disclosure relates to a process for removing metals, particularly mercury or cadmium, from hydrocarbon streams (such as crude oil/petroleum) by use of an ionic liquid, where in the metal-containing hydrocarbon stream is contacted with an ionic liquid to produce a product hydrocarbon stream having reduced mercury content. Wherein the ionic liquid is present in a ratio of a hydrocarbon : ionic liquid volume ratio of 100:1 to 10,000:1 and has the formula [Cat+][X-]. The disclosed embodiments include where [Cat+] may be selected from compounds having a moiety selected from ammonium, benzimidazolium, benzofuranium, benzothiophenium, benzotriazolium, borolium, cinnolinium, diazabicyclodecenium, diazabicyclononenium, 1,4-diazabicyclo[2.2.2]octanium, diazabicyclo-undecenium, dithiazolium, furanium, guanidinium, imidazolium, indazolium, indolinium, indolium, morpholinium, oxaborolium, oxaphospholium, oxazinium, oxazolium, iso-oxazolium, oxothiazolium, phospholium, phosphonium, phthalazinium, piperazinium, piperidinium, pyranium, pyrazinium, pyrazolium, pyridazinium, pyridinium, pyrimidinium, pyrrolidinium, pyrrolium, quinazolinium, quinolinium, iso-quinolinium, quinoxalinium, quinuclidinium, selenazolium, sulfonium, tetrazolium, thiadiazolium, iso-thiadiazolium, thiazinium, thiazolium, iso-thiazolium, thiophenium, thiuronium, triazinium, triazolium, iso-triazolium, and uronium. Where [X-] may be [F]-, [Cl]-, [Br]-, [I]-, [I3]-, [I2Br]-, [IBr2]-, [Br3]-, [Br2C]-, [BrCl2]-, [ICl2]-, [I2Cl]-, and [Cl3]-. |
