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Sulfur and arsenic adsorbent and preparation method thereof

A technology of adsorbent and binder, which is applied in the field of sulfur-arsenic adsorbent and its preparation, can solve the problems of low sulfur capacity and arsenic capacity, high bulk density of sulfur-arsenic adsorbent, etc., so as to increase the arsenic capacity and increase the chance of interface contact , Improve the effect of sulfur capacity

Active Publication Date: 2016-01-06
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 and low sulfur capacity and arsenic capacity of the sulfur-arsenic adsorbent in the prior art, and a new sulfur-arsenic adsorbent and its preparation method are provided

Method used

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  • Sulfur and arsenic adsorbent and preparation method thereof
  • Sulfur and arsenic adsorbent and preparation method thereof
  • Sulfur and arsenic adsorbent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Mix 30 kilograms of copper nitrate, 40 kilograms of zinc nitrate, 10 kilograms of aluminum nitrate, 2 kilograms of iron nitrate, 1.75 kilograms of manganese nitrate 50% aqueous solution and 500 kilograms of water and mix and stir evenly to obtain a metal salt solution, mix 30 kilograms of sodium carbonate and 550 kilograms of water Uniformly obtain a sodium carbonate solution, mix the sodium carbonate solution and the metal salt solution uniformly, react at 70°C for 1 hour, wash and dry the precipitate, then add 6 kg of alumina, 1 kg of graphite, mix and roll, and then add 30% by weight of Water, granulation, calcination at 270°C for 2 hours, tablet molding, the composition of the obtained sample is shown in Table 1.

Embodiment 2

[0033] Mix 20 kilograms of copper nitrate, 50 kilograms of zinc nitrate, 10 kilograms of aluminum nitrate, 2 kilograms of iron nitrate, 1.75 kilograms of manganese nitrate 50% aqueous solution and 500 kilograms of water to obtain a metal salt solution, mix 30 kilograms of sodium carbonate and 550 kilograms of water Uniformly obtain a sodium carbonate solution, mix the sodium carbonate solution and the metal salt solution uniformly, react at 60°C for 2 hours, wash and dry the precipitate, then add 5 kg of alumina, 1 kg of graphite, mix and roll, and then add 35% by weight of Water, granulation, calcination at 270°C for 2 hours, tablet molding, the composition of the obtained sample is shown in Table 1.

Embodiment 3

[0035]Mix 10 kilograms of copper nitrate, 60 kilograms of zinc nitrate, 10 kilograms of aluminum nitrate, 2 kilograms of iron nitrate, 1.75 kilograms of manganese nitrate 50% aqueous solution and 500 kilograms of water to obtain a metal salt solution, mix 30 kilograms of sodium carbonate and 550 kilograms of water Uniformly obtain a sodium carbonate solution, mix the sodium carbonate solution and the metal salt solution uniformly, react at 60°C for 2 hours, wash and dry the precipitate, then add 6 kg of alumina, 1 kg of graphite, mix and roll, and then add 50% by weight of Water, granulation, calcination at 270°C for 2 hours, tablet molding, the composition of the obtained sample is shown in Table 1.

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Abstract

The invention relates to a sulfur and arsenic adsorbent and a preparation method thereof to mainly solve the problems of high bulk density and low sulfur and arsenic capacity of sulfur and arsenic adsorbents in the prior art. The sulfur and arsenic adsorbent comprises, by weight, 1-10 parts of aurichalcite, 10-50 parts of copper oxide, 10-60 parts of zinc oxide, 0.1-5 parts of iron oxide and 0.1-5 parts of manganese oxide. The sulfur and arsenic adsorbent adopting the above technical scheme well solves the problems, and can be used to purify natural gas, synthetic gases and lightweight gas and liquid hydrocarbons.

Description

technical field [0001] The invention relates to a sulfur-arsenic adsorbent 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 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 s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/06B01J20/30
Inventor 贾银娟周健王灿刘志成高焕新
Owner CHINA PETROLEUM & CHEM CORP
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