Normal temperature desulfurization and arsenic removal agent and preparation method thereof

A technology of desulfurization and dearsenic, by weight, applied in separation methods, chemical instruments and methods, refining hydrocarbon oil, etc. The effect of increasing the chance of interface contact

A technology of desulfurization and dearsenic, by weight, applied in separation methods, chemical instruments and methods, refining hydrocarbon oil, etc. The effect of increasing the chance of interface contact

CN105582877BActive Publication Date: 2019-01-25CHINA PETROLEUM & CHEM CORP +1
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  • Normal temperature desulfurization and arsenic removal agent and preparation method thereof
  • Normal temperature desulfurization and arsenic removal agent and preparation method thereof
  • Normal temperature desulfurization and arsenic removal agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 30 kilograms of copper nitrate, 40 kilograms of zinc nitrate, 10 kilograms of aluminum nitrate, 1.0 kilogram of cerium nitrate and 500 kilograms of water are mixed and stirred to obtain a metal salt solution, and 30 kilograms of sodium carbonate and 550 kilograms of water are mixed to obtain a sodium carbonate solution. Mix the sodium solution and metal salt solution evenly, react at 70°C for 1 hour, wash and dry the precipitate, then add 6 kg of alumina and 1 kg of graphite, mix and roll, then add 30% by weight of water, granulate, and roast at 270°C After 2 hours, it was pressed into tablets and formed, and the composition of the obtained sample is shown in Table 1.

Embodiment 2

[0036] 30 kilograms of copper nitrate, 40 kilograms of zinc nitrate, 10 kilograms of aluminum nitrate, 0.02 kilogram of cerium nitrate and 500 kilograms of water are mixed and stirred to obtain a metal salt solution, and 30 kilograms of sodium carbonate and 550 kilograms of water are mixed to obtain a sodium carbonate solution. Mix the sodium solution and metal salt solution evenly, react at 70°C for 1 hour, wash and dry the precipitate, then add 6 kg of alumina and 1 kg of graphite, mix and roll, then add 30% by weight of water, granulate, and roast at 270°C After 2 hours, it was pressed into tablets and formed, and the composition of the obtained sample is shown in Table 1.

Embodiment 3

[0038] 30 kilograms of copper nitrate, 40 kilograms of zinc nitrate, 10 kilograms of aluminum nitrate, 0.1 kilogram of cerium nitrate and 500 kilograms of water are mixed and stirred to obtain a metal salt solution, and 30 kilograms of sodium carbonate and 550 kilograms of water are mixed to obtain a sodium carbonate solution. Mix the sodium solution and metal salt solution evenly, react at 70°C for 1 hour, wash and dry the precipitate, then add 6 kg of alumina and 1 kg of graphite, mix and roll, then add 30% by weight of water, granulate, and roast at 270°C After 2 hours, it was pressed into tablets and formed, and the composition of the obtained sample is shown in Table 1.

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Abstract

The invention relates to a normal-temperature desulfurization dearsenic agent and a preparation method thereof. The invention mainly aims at solving problems of high bulk density, low sulfur capacity and low arsenic capacity of desulfurization dearsenic agents in prior arts. The desulfurization dearsenic agent provided by the invention comprises the following components, by weight: (a) 1-10 parts of aurichalcite, (10) 10-50 parts of copper oxide, (c) 10-60 parts of zinc oxide, and (d) 0.01-3 parts of rare earth metal R. With the above technical scheme, the problem is well solved. The method can be applied in the purification of natural gas, synthetic gas, light gas-liquid hydrocarbons, and the like.

Description

technical field [0001] The invention relates to a normal temperature desulfurization and arsenic removal 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 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]...

Claims

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Application Information

Patent Timeline
25 Jan 2019
Publication
CN105582877B
IPC
B01J20/06; B01J20/30; B01D53/02; C10G25/00
Inventors
贾银娟; 王灿