Method of removing mercury from fluid stream using high capacity copper adsorbents

A material flow and fluid technology, applied in the field of high-capacity sorbents, can solve problems such as limiting the utilization of active components and reducing surface area

Inactive Publication Date: 2014-10-15
UOP LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Reduced surface area limits utilization of active ingredients

Method used

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  • Method of removing mercury from fluid stream using high capacity copper adsorbents
  • Method of removing mercury from fluid stream using high capacity copper adsorbents
  • Method of removing mercury from fluid stream using high capacity copper adsorbents

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Embodiment

[0041] A mixture of copper oxysalt and support material is provided. In one embodiment, the copper oxysalt is basic copper carbonate Cu 2 (OH) 2 CO 3 , and the carrier material is alumina powder capable of rehydration. In various embodiments, the copper content of the mixture is 5-85% by mass calculated as CuO on a volatile-free basis. In one embodiment, the copper content of the mixture is 70% by mass.

[0042] Coarse sorbent beads are formed from the mixture. As used herein, "coarse sorbent bead" refers to a bead comprising copper oxysalt prior to any sulfidation, and "active sorbent bead" refers to a bead in which at least a portion of the copper oxysalt is sulfided. In one embodiment, beads are formed by spheronizing the mixture in a rotating disk granulator while spraying with a liquid. In one embodiment, the liquid comprises water. In one embodiment, the liquid comprises water and a solution of a halide salt. In one embodiment, the halide salt is sodium chloride....

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Abstract

A method of removing mercury from a fluid stream comprises contacting the fluid stream with a sorbent comprising cupric sulfide. The cupric sulfide is formed from direct sulfidation of copper carbonate, without thermal decomposition of the copper carbonate to an oxide, at a temperature less than 150 DEG C.

Description

[0001] Priority claims from earlier national applications [0002] This application claims priority to US Application No. 13 / 367,219, filed February 6, 2012. field of invention [0003] The present disclosure generally relates to the removal of contaminants from hydrocarbon liquids and gases. In certain embodiments, the present disclosure relates to the removal of mercury from hydrocarbon streams using copper-based sorbents. In certain embodiments, the present disclosure relates to the use of high capacity sorbents comprising copper sulfide compounds prepared by direct sulfidation of copper oxysalts. Background of the invention [0004] Hydrocarbon fluid streams, including liquid streams and gas streams, are often contaminated with mercury compounds. Sorbents comprising supported metal sulfides such as copper sulfide (CuS) are used to remove mercury from hydrocarbon fluid streams by Reaction 1. [0005] 2CuS+Hg→HgS+Cu 2 S (1) [0006] For example, US Patent No. 4,094,77...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02B01D53/64B01D15/08B01J20/02B01J20/30
CPCC10G25/003B01J20/28069B01J20/3204C10G2300/201B01J20/0285B01J20/28004C10L3/101B01J20/08B01J20/3236B01D53/64B01J20/28011B01J20/0237B01J2220/42A61B5/02416A61B5/02427A61B5/02433A61B5/02438A61B5/1455A61B5/14551A61B5/14552A61B5/681A61B5/6824A61B5/7278A61B5/742
Inventor D·西莫内蒂V·I·卡纳兹雷夫T·特雷纳
Owner UOP LLC
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