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Preparation method of copper-based mercury removing agent

A mercury removal agent and mercury removal technology, applied in chemical instruments and methods, and other chemical processes, can solve the problems of low mercury absorption accuracy and high production cost, and achieve high utilization rate, reduced production cost, and high activity.

Inactive Publication Date: 2014-01-22
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is that the mercury removal agent prepared by using basic copper carbonate in the prior art has high production cost and low mercury absorption precision, and further provides a kind of mercury removal agent with low production cost and high mercury absorption precision. Preparation

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The preparation method of mercury removal agent in the present embodiment is:

[0029] (1) Completely dissolve 5.528g of basic copper carbonate in 100ml of saturated ammonium bicarbonate solution to form an impregnation solution;

[0030] (2) 50g of the particle size is 1mm, the pore volume is 0.3ml / g, the specific surface area is 100m 2 The alumina ball carrier of / g is impregnated in the above-mentioned dipping solution, the alumina ball carrier after saturated impregnation is taken out, drains;

[0031] (3) Calcining the above-mentioned drained carrier at 180°C for 12 hours to obtain a mercury removal agent precursor;

[0032] (4) Put the above mercury removal agent precursor in 1 vol %H 2 S is vulcanized to saturation to obtain the copper-based mercury removal agent A.

[0033] According to "GBT 3884.1-2012 Copper Concentrate Chemical Analysis Method Part 1: Determination of Copper Iodometric Method" and "GBT 3884.3-2012 Copper Concentrate Chemical Analysis Metho...

Embodiment 2

[0035] The preparation method of mercury removal agent in the present embodiment is:

[0036] (1) Completely dissolve 11.056g of basic copper carbonate in 100ml of 22wt% ammonia water to form an impregnation solution;

[0037] (2) 50g of the particle size is 3mm, the pore volume is 0.4ml / g, the specific surface area is 120m 2 Immerse the activated carbon carrier / g in the above impregnating solution, take out the activated carbon carrier after saturated impregnation, and dry it at 80°C for 12 hours to obtain the mercury removal agent precursor;

[0038] (3) Calcining the above-mentioned dried carrier at 200°C for 8 hours to obtain a mercury removal agent precursor;

[0039] (4) Put the above mercury removal agent precursor in 1 vol %H2 S is vulcanized to saturation to obtain the copper-based mercury removal agent B.

[0040] According to "GBT 3884.1-2012 Copper Concentrate Chemical Analysis Method Part 1: Determination of Copper Iodometric Method" and "GBT 3884.3-2012 Copper ...

Embodiment 3

[0042] The preparation method of mercury removal agent in the present embodiment is:

[0043] (1) Completely dissolve 22.112g of basic copper carbonate in 100ml of 28wt% ammonia water to form an impregnation solution;

[0044] (2) 50g of the particle size is 5mm, the pore volume is 0.6ml / g, the specific surface area is 180m 2 The activated carbon carrier / g is impregnated in the above impregnating solution, the activated carbon carrier after saturated impregnation is taken out, and dried at 120°C for 6 hours;

[0045] (3) Calcining the above-mentioned dried carrier at 220°C for 6 hours to obtain a mercury removal agent precursor;

[0046] (4) Put the above mercury removal agent precursor in 1 vol %H 2 S is vulcanized to saturation to obtain the copper-based mercury removal agent C.

[0047] According to "GBT 3884.1-2012 Copper Concentrate Chemical Analysis Method Part 1: Determination of Copper Iodometric Method" and "GBT 3884.3-2012 Copper Concentrate Chemical Analysis Meth...

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Abstract

The invention provides a preparation method of a copper-based mercury removing agent, belonging to the technical field of mercury removing agents. The preparation method comprises the following steps: (1) dissolving basic cupric carbonate into concentrated ammonia water or saturated ammonium bicarbonate solution or mixed solution of concentrated ammonia water and saturated ammonium bicarbonate, thus forming impregnation liquid; (2) impregnating a carrier in the impregnation liquid, taking out the saturated and impregnated carrier and draining or drying the carrier at 80-150 DEG C; (3) roasting the drained or dried carrier at 180-250 DEG C, thus obtaining a mercury removing agent precursor; (4) vulcanizing the mercury removing agent precursor, thus obtaining the copper-based mercury removing agent. The mercury removing agent prepared by the preparation method has the advantages of low production cost and high mercury removal accuracy.

Description

technical field [0001] The invention relates to a preparation method of a copper-based mercury removal agent, belonging to the technical field of mercury removal agents. Background technique [0002] A small amount of mercury exists in natural gas, liquefied petroleum gas, and liquid hydrocarbon feedstocks (such as naphtha, condensate, and distillate oils, etc.), and the presence of mercury can cause the following problems: amalgamation of aluminum heat exchangers Damage; poison expensive catalysts in downstream units, greatly reducing their life; contaminate shipping containers. In addition, mercury is one of the most important toxic substances in oil and gas. After burning oil and gas, mercury will enter the atmosphere and cause environmental pollution. Therefore, mercury must be removed from the above materials before use. [0003] The mercury removal agent commonly used in the prior art is copper sulfide mercury removal agent. For example, U.S. patent document US409477...

Claims

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Application Information

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IPC IPC(8): B01J20/06B01J20/30
Inventor 黄波刘振义李新成峻青张君李海英毛文君黄琼王维张彦辉
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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