Purification agent and preparation method of purification agent

A purification agent and binder technology, applied in the field of purification agent and its preparation, can solve the problems of high bulk density of purification agent, low utilization rate, high industrial application cost, etc., and achieve high effective utilization rate, strong purification ability and industrial application low cost effect

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 problem of high bulk density, low utilization rate and high cost of industrial application in the prior art, and a new purification agent is provided

Method used

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  • Purification agent and preparation method of purification agent
  • Purification agent and preparation method of purification agent
  • Purification agent and preparation method of purification agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Mix 55 grams of zinc nitrate, 45 grams of copper nitrate, 56 grams of aluminum nitrate and 450 grams of water to obtain a metal salt solution. Mix 69 grams of sodium carbonate and 550 grams of water to obtain a sodium carbonate solution. Combine the sodium carbonate solution with the metal salt. The solution was mixed thoroughly, reacted at 70°C for 1 hour, the precipitate was washed and dried, then 3.2 grams of alumina and 1 gram of graphite were added to mix and rolled, and 30% by weight of water was added based on the total weight percentage of the precipitate and graphite. Granulation, drying, heat treatment at 110°C for 5 hours, tableting and forming, the composition of the sample obtained is shown in Table 1, and the XRD spectrum of the sample is shown in figure 1 .

[0035]

Embodiment 2

[0037] Mix 55 grams of zinc nitrate, 45 grams of copper nitrate, 56 grams of aluminum nitrate and 450 grams of water to obtain a metal salt solution. Mix 69 grams of sodium carbonate and 550 grams of water to obtain a sodium carbonate solution. Combine the sodium carbonate solution with the metal salt. The solution was mixed thoroughly, reacted at 70°C for 1 hour, the precipitate was washed and dried, then 15 grams of alumina and 1 gram of graphite were added and mixed and rolled. Based on the total weight percentage of the precipitate and graphite, 30% by weight of water was added. Granulation, drying, heat treatment at 110°C for 5 hours, tableting and forming, the sample composition obtained is shown in Table 1.

[0038]

Embodiment 3

[0040] Mix 55 grams of zinc nitrate, 20 grams of copper nitrate, 56 grams of aluminum nitrate and 450 grams of water to obtain a metal salt solution. Mix 69 grams of sodium carbonate and 550 grams of water to obtain a sodium carbonate solution. Combine the sodium carbonate solution with the metal salt. The solution was mixed thoroughly, reacted at 70°C for 1 hour, the precipitate was washed and dried, then 35 grams of alumina and 1 gram of graphite were added, mixed and rolled, and 30% by weight of water was added based on the total weight percentage of the precipitate and graphite. Granulation, drying, heat treatment at 110°C for 5 hours, tableting and forming, the sample composition obtained is shown in Table 1.

[0041]

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Abstract

The invention relates to a purification agent and a preparation method of the purification agent, mainly solving the problems of high bulk density, low utilization rate and high industrial application cost of the purification agent in the prior art. The purification agent comprises the following components in percentage by weight: (a) 20-95% of Cu-Zn-Al ternary hydrotalcite; and (b) 5-8% of an adhesive, wherein a hydrotalcite compound is ternary hydrotalcite which comprises bivalent ions Zn<2+> and Cu<2+> and trivalent ions Al<3+>; the molecular structure of the hydrotalcite compound is as follows: [CuyZn (1-x-y)Alx(OH)2](CO3)x/2.mH2O), wherein x represents the mole ratio of Al/(Zn+Cu+Al) and is 0.2-0.33; the mole ratio of Cu to Zn is 0.1-2; m represents the number of crystal waters and is 2-4. The purification agent can be used for purifying natural gas, synthesis gas and light gas-liquid hydrocarbon.

Description

technical field [0001] The invention relates to a cleaning agent and a preparation method thereof. Background technique [0002] Impurities such as sulfur and arsenic are widely present in raw materials such as natural gas, synthesis gas, coal-based gas, and light gas liquid hydrocarbons. The presence of these impurities will cause poisoning and deactivation of many catalysts, greatly shorten the life of the catalyst, 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 subs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/10C10K1/20C07C11/06C07C7/00
Inventor 贾银娟刘志成高焕新
Owner CHINA PETROLEUM & CHEM CORP
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