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Process for removing metals from hydrocarbons

A technology, a technology of metal salts, applied in the direction of refining with metal salts, purification/separation of hydrocarbons, refining hydrocarbon oils, etc., can solve problems such as incompatibility

Active Publication Date: 2017-01-25
QUEENS UNIV OF BELFAST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, the high corrosivity of the systems disclosed in WO 98 / 06106 and in Pitner et al. makes them incompatible with metal hydrocarbon handling, storage and transportation equipment

Method used

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  • Process for removing metals from hydrocarbons
  • Process for removing metals from hydrocarbons

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0352] Example 1: Extraction of elemental mercury by an ionic liquid containing copper

[0353]1-Butyl-3-methylimidazolium chloride (5 g, 29 mmol) and copper(II) chloride dihydrate (5 g, 29 mmol) were combined in a flask and heated to 70 °C under vacuum to produce a tan color Viscous oil.

[0354] 0.037 g of the above oil was contacted with 0.0183 g of elemental mercury and heated to 60° C. overnight in a sealed tube to produce a pale, slightly blue ionic liquid containing an off-white precipitate. will be 10cm 3 Deionized water was added to the mixture, filtered, and diluted to 50cm 3 . Dilute 1 cm with deionized water 3 The dilute solution is further diluted to 50cm 3 . The resulting solution was analyzed for mercury using a Milestone DMA-80 direct mercury analyzer. The solution was found to contain 3.27 ± 0.21 ppm mercury, indicating that 0.22 g mercury per gram of initial ionic liquid had been converted to a water-soluble ionic form, in contrast to the theory of 0...

Embodiment 2

[0355] Example 2: Extraction of Elemental Mercury by Copper-Containing Ionic Liquids

[0356] The copper(II) containing ionic liquid of Example 1 was contacted with 0.355 g of elemental mercury and heated to 60° C. overnight in a sealed tube. The resulting mixture was analyzed as in Example 1 and found to contain 7.02 ± 0.24 ppm mercury in the analyte solution, corresponding to 18.6 wt% dissolved mercury.

Embodiment 3

[0357] Example 3: Extraction of elemental mercury from dodecane

[0358] Ionic liquids were prepared from a 2:1 molar ratio of 1-butyl-3-methylimidazolium chloride and copper(II) chloride dihydrate. 0.18 g of ionic liquid was added to a 10 cm 3 A sample vial of dodecane was added, and the resulting mixture was stirred overnight at 60 °C. The resulting dodecane phase was then analyzed for total mercury concentration and found to contain 34.9 ppb mercury.

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Abstract

The invention relates to a process for the removal of metals (especially mercury) from a mercury-containing hydrocarbon fluid feed using specifically selected ionic liquids, comprising contacting the mercury-containing hydrocarbon fluid feed with an ionic liquid having the formula [Cat+][M+][X-] and separating from the ionic liquid a hydrocarbon fluid product having a reduced mercury content compared to the mercury-containing fluid feed. An alternative process involves the use of a metallate salt of the following formula [Q+][(Mx+)m(Ly-)m](nx-my) For the meanings of the above symbols, please see the specification.

Description

[0001] This application is a divisional application of the application dated October 5, 2011, the application number is 201180057126.7, and the invention title is "process for removing metals from hydrocarbons". technical field [0002] The present invention relates to a process for removing metals, and especially mercury, from hydrocarbon fluids. More particularly, the present invention relates to processes in which ionic liquids are used to extract metals from gaseous or liquid hydrocarbons. Background technique [0003] Liquid and gaseous hydrocarbons obtained from oil and gas fields are often contaminated with mercury. In particular, liquid hydrocarbons and gaseous hydrocarbons obtained from oil and gas fields in and around the Netherlands, Germany, Canada, the United States, Malaysia, Brunei, and the United Kingdom are known to contain mercury. The mercury content of these hydrocarbons can be in various forms as reported by N.S. Bloom (Fresenius J. Anal. Chem., 2000, 3...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G21/06C10L3/10
CPCC10G21/06C10L3/10C10G2300/205B01D53/14C01G13/00C07C7/152C10G29/06B01D2252/30B01D2256/24B01D2257/602C10L3/101C10G2300/1025C10G2300/104C10G2300/1044C10G2300/1051C10G2300/1055C10G2400/02C10G2400/04C10G2400/08C10G25/003C07C7/11B01D53/1493C10G21/20C10G21/22C10G21/24C10L2290/542
Inventor 马普扎赫·阿拜马丁·菲利普·阿特金斯夸永·张约翰·霍尔布雷彼得·诺克曼肯·塞顿吉萨·斯里尼瓦桑邹怡然
Owner QUEENS UNIV OF BELFAST
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