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Sulfur-arsenic purifying agent and application thereof

A purification agent and binder technology, applied in other chemical processes, chemical instruments and methods, using solid contact hydrogen separation, etc., can solve the problems of low sulfur arsenic capacity, high bulk density of sulfur and arsenic purifiers, and high industrial application costs , to achieve high sulfur and arsenic capacity, low cost for industrial application, and low bulk density

Active Publication Date: 2015-04-29
CHINA PETROLEUM & CHEM CORP +1
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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 the high bulk density of sulfur and arsenic purifiers in the prior art, the high cost of industrial application, and the low sulfur and arsenic capacity. A new sulfur and arsenic purifier is provided

Method used

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  • Sulfur-arsenic purifying agent and application thereof
  • Sulfur-arsenic purifying agent and application thereof
  • Sulfur-arsenic purifying agent and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034]55 grams of zinc nitrate, 45 grams of copper nitrate, 12 grams of aluminum nitrate and 450 grams of water were mixed and stirred uniformly to obtain a metal salt solution, 49 grams of sodium carbonate and 550 grams of water were mixed uniformly to obtain a sodium carbonate solution, and the sodium carbonate solution was mixed with the metal salt The solution is fully mixed, and the pH value of the solution is adjusted to 7.0 with 1% by weight of sodium carbonate, reacted at 70 ° C for 1 hour, the precipitate is washed and dried, and then 10 grams of alumina is added, and 1 gram of graphite is mixed and rolled, and the precipitate and graphite are mixed and rolled. In terms of the total weight percentage of the sample, add 30% by weight of water, granulate, dry, and press into tablets to obtain the sample composition shown in Table 1.

[0035]

Embodiment 2

[0037] 55 grams of zinc nitrate, 45 grams of copper nitrate, 18 grams of aluminum nitrate and 450 grams of water were mixed and stirred uniformly to obtain a metal salt solution, 52 grams of sodium carbonate and 550 grams of water were mixed uniformly to obtain a sodium carbonate solution, and the sodium carbonate solution was mixed with the metal salt The solution is fully mixed, and the pH value of the solution is adjusted to 7.0 with 1% by weight of sodium carbonate, reacted at 70 ° C for 1 hour, the precipitate is washed and dried, and then 9 grams of alumina is added, and 1 gram of graphite is mixed and rolled, and the precipitate and graphite are mixed and rolled. In terms of the total weight percentage of the sample, add 30% by weight of water, granulate, dry, and press into tablets to obtain the sample composition shown in Table 1.

[0038]

Embodiment 3

[0040] 55 grams of zinc nitrate, 45 grams of copper nitrate, 25 grams of aluminum nitrate and 450 grams of water were mixed and stirred uniformly to obtain a metal salt solution, 55 grams of sodium carbonate and 550 grams of water were mixed uniformly to obtain a sodium carbonate solution, and the sodium carbonate solution was mixed with the metal salt The solution is fully mixed, and the pH value of the solution is adjusted to 7.0 with 1% by weight of sodium carbonate, reacted at 70 ° C for 1 hour, the precipitate is washed and dried, then 8 grams of aluminum oxide is added, and 1 gram of graphite is mixed and rolled, and the precipitate and graphite are mixed and rolled. In terms of the total weight percentage of the sample, add 30% by weight of water, granulate, dry, and press into tablets to obtain the sample composition shown in Table 1.

[0041]

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Abstract

The invention relates to a sulfur-arsenic purifying agent and application thereof, aiming at solving the problems that the sulfur-arsenic purifying agent in the prior art has high bulk density, low sulfur capacity and arsenic capacity and has high industrial application cost. The sulfur-arsenic purifying agent is prepared from the following components in percentage by weight: (a) 20-75% of hydrotalcite-like compound; (b) 20-75% of aurichalcite; and (c) 1-10% of basic cupric carbonate. The sulfur-arsenic purifying agent can solve the problem well and can be applied to purification of natural gas, synthesis gas, light gas-liquid hydrocarbons and the like.

Description

technical field [0001] The invention relates to a sulfur and arsenic purifying agent and its application. Background technique [0002] Impurities such as sulfur and arsenic are widely present in raw materials such as natural gas, synthesis gas, coal gas, light gas and liquid hydrocarbons. The existence of these impurities will lead to poisoning and deactivation of many catalysts, greatly shorten the life of catalysts, and even cause the catalytic reaction to fail to proceed normally. ; In addition, the sulfur and arsenic impurities that have not been removed will enter the downstream synthetic products as the production progresses, which will bring a series of environmental and health problems. Therefore, efficient and high-precision removal of impurities such as sulfur and arsenic is of great significance for protecting the main catalyst of downstream devices and improving the quality of downstream products at the same time. [0003] In general, the sulfur-containing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/08B01J20/30C10L3/10C01B3/56C10K1/32B01D53/02C10G25/00
CPCB01D53/02B01D2253/112B01J20/0233B01J20/0277B01J20/06B01J20/08B01J2220/42B01J2220/4806C01B3/56C10G25/003C10G2300/202C10K1/32C10L3/101C10L3/103
Inventor 贾银娟刘志成高焕新
Owner CHINA PETROLEUM & CHEM CORP
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