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Cleaning agent and its preparation method

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: 2018-06-08
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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  • Cleaning agent and its preparation method
  • Cleaning agent and its preparation method
  • Cleaning agent and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 55 grams of zinc nitrate, 45 grams of copper nitrate, 56 grams of aluminum nitrate and 450 grams of water were mixed and stirred uniformly to obtain a metal salt solution, 69 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 was fully mixed, reacted at 70°C for 1 hour, washed and dried the precipitate, then added 3.2 grams of alumina and 1 gram of graphite, mixed and rolled, based on the total weight percentage of the precipitate and graphite, and then added 30% by weight of water, Granulation, drying, heat treatment at 110°C for 5 hours, tablet molding, the composition of the obtained sample is shown in Table 1, and the XRD spectrum of the sample is shown in figure 1 .

Embodiment 2

[0033] 55 grams of zinc nitrate, 45 grams of copper nitrate, 56 grams of aluminum nitrate and 450 grams of water were mixed and stirred uniformly to obtain a metal salt solution, 69 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 was fully mixed, reacted at 70°C for 1 hour, washed and dried the precipitate, then added 15 grams of alumina and 1 gram of graphite, mixed and rolled, based on the total weight percentage of the precipitate and graphite, and then added 30% by weight of water, Granulation, drying, heat treatment at 110°C for 5 hours, tablet molding, the composition of the obtained sample is shown in Table 1.

Embodiment 3

[0035]55 grams of zinc nitrate, 20 grams of copper nitrate, 56 grams of aluminum nitrate and 450 grams of water were mixed and stirred uniformly to obtain a metal salt solution, 69 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 was fully mixed, reacted at 70°C for 1 hour, washed and dried the precipitate, then added 35 grams of alumina and 1 gram of graphite, mixed and rolled, based on the total weight percentage of the precipitate and graphite, and then added 30% by weight of water, Granulation, drying, heat treatment at 110°C for 5 hours, tablet molding, the composition of the obtained sample is shown in Table 1.

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Abstract

The invention relates to a cleaning agent and a preparation method thereof, which mainly solves the problems of high bulk density, low utilization rate and high industrial application cost of the cleaning agent in the prior art. The present invention adopts a cleaning agent, which comprises the following components in terms of weight percentage: a) 20-95% Cu-Zn-Al ternary hydrotalcite; b) 5-80% binder; the hydrotalcite The compound is a ternary hydrotalcite composed of divalent ions Zn2+, Cu2+, and trivalent ions Al3+. The molecular structure is [CuyZn(1‑x‑y)Alx(OH)2](CO3)x / 2.mH2O), and x is The molar ratio of Al / (Zn+Cu+Al), x is 0.2~0.33; Cu / Zn (molar ratio)=0.1~2; m is the number of crystal water, and m is the technical solution of 2~4, which is a better solution Solving this problem, it can be used in the purification of natural gas, synthetic gas, light gas and liquid hydrocarbons, etc.

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 subst...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/08C10L3/10C10K1/20C07C7/00
Inventor 贾银娟刘志成高焕新
Owner CHINA PETROLEUM & CHEM CORP