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Sulfur, arsenic, phosphorus adsorbent and preparation method thereof

A technology of phosphorus adsorbent and parts by weight, which is applied in the field of sulfur, arsenic, phosphorus adsorbent and its preparation, can solve the problems of high bulk density and low adsorption capacity of the adsorbent, and achieve the improvement of adsorption capacity, increase of adsorption capacity, and increase of Dispersion effect

Active Publication Date: 2020-02-04
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is the problem of high bulk density and low adsorption capacity of the adsorbent in the prior art, and a new sulfur, arsenic, phosphorus adsorbent and its preparation method are provided

Method used

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

Examples

Experimental program
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Effect test

Embodiment 1

[0032]30 kilograms of copper nitrate trihydrate, 40 kilograms of zinc nitrate hexahydrate, 2 kilograms of iron nitrate, 1.75 kilograms of manganese nitrate 50% aqueous solution, 2.5 kilograms of nickel nitrate hexahydrate, 1.0 kilograms of cerium nitrate and 500 kilograms of water were mixed and stirred evenly to obtain a metal salt solution, Mix 30 kg of sodium carbonate and 550 kg of water to obtain a sodium carbonate solution, mix the sodium carbonate solution and the metal salt solution evenly, react at 70°C for 1 hour, add 5 kg of pseudo-boehmite, react for 0.5 hour, and remove the precipitate Wash until the conductivity of the filtrate is less than 100 μs / cm, dry the precipitate, then add 1 kg of graphite and 30% by weight of water, mix and roll, granulate, roast at 270° C. for 2 hours, and press into tablets to form the obtained sample. The composition is shown in Table 1.

Embodiment 2

[0034] 20 kg of copper nitrate trihydrate, 50 kg of zinc nitrate hexahydrate, 2 kg of iron nitrate, 1.75 kg of manganese nitrate 50% aqueous solution, 2.5 kg of nickel nitrate hexahydrate, 0.02 kg of cerium nitrate and 500 kg of water were mixed and stirred evenly to obtain a metal salt solution , Mix 30 kg of sodium carbonate and 550 kg of water to obtain a sodium carbonate solution, mix the sodium carbonate solution and the metal salt solution evenly, react at 60°C for 2 hours, add 5 kg of pseudo-boehmite, react for 0.5 hours, and precipitate Wash until the conductivity of the filtrate is less than 100 μs / cm, dry the precipitate, then add 1 kg of graphite and 35% by weight of water, mix and roll, granulate, roast at 270°C for 2 hours, and press into tablets to obtain the composition of the sample shown in Table 1 .

Embodiment 3

[0036] 10 kg of copper nitrate trihydrate, 60 kg of zinc nitrate hexahydrate, 2 kg of ferric nitrate, 1.75 kg of manganese nitrate 50% aqueous solution, 2.5 kg of nickel nitrate hexahydrate, 0.1 kg of cerium nitrate and 500 kg of water were mixed and stirred evenly to obtain a metal salt solution , Mix 30 kg of sodium carbonate and 550 kg of water to obtain a sodium carbonate solution, mix the sodium carbonate solution and the metal salt solution evenly, react at 60°C for 2 hours, add 6 kg of pseudo-boehmite, react for 0.5 hours, and precipitate Wash until the conductivity of the filtrate is less than 100 μs / cm, dry the precipitate, then add 1 kg of graphite and 50% by weight of water, mix and roll, granulate, roast at 270°C for 2 hours, and press into tablets to obtain the composition of the sample shown in Table 1 .

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Abstract

The invention relates to an adsorbent for sulfur, arsenic and phosphorus, and a preparation method of the adsorbent, and mainly solves the problems of high bulk density and low adsorption capacity ofadsorbents in the prior art. According to the invention, a technical scheme is used to well solve the problems, wherein the adsorbent for sulfur, arsenic and phosphorus comprises the following components in parts by weight: a) 1-10 parts of aurichalcite, b) 10-50 parts of copper oxide; c) 10-60 parts of zinc oxide; d) 0.1-10 parts of nickel oxide; e) 0.1-5 parts of iron oxide; f) 0.1-5 parts of manganese oxide; and g) 0.01-3 parts of rare earth metal R. The adsorbent can be applied to the purification of natural gas, synthesis gas, light gas liquid hydrocarbons and the like.

Description

technical field [0001] The invention relates to a sulfur, arsenic and phosphorus adsorbent and a preparation method thereof. Background technique [0002] Sulfur, arsenic, phosphorus and other impurities widely exist 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 lead to catalytic reaction It cannot be carried out normally; in addition, the 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, arsenic, and phosphorus 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 su...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/06B01J20/30
CPCB01J20/02B01J20/06
Inventor 贾银娟王灿高焕新刘志成
Owner CHINA PETROLEUM & CHEM CORP
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