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Material for trapping the unsaturated hydrocarbon in hydrocarbon raw materials

A capture material and unsaturated technology, which is applied in the field of unsaturated hydrocarbon adsorption materials, can solve the problem of unsatisfactory permeability of long-chain alkanes in the stability of capture materials, and achieve good desorption, service life and adsorption performance improved effect

Active Publication Date: 2009-09-02
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] CN1226620C discloses a kind of olefin capture material, and this material is formed by loading silver ions on the porous carrier, and the carrier used in its example is diatomaceous earth, and after drying with silver nitrate solution, the olefin capture material is obtained, This material not only greatly improves the capacity of olefin capture, but also has good adsorption reversibility, that is, the adsorbed olefin can be desorbed at high temperature, but the stability of the capture material and the permeability to long-chain alkanes are not yet good. ideal

Method used

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  • Material for trapping the unsaturated hydrocarbon in hydrocarbon raw materials
  • Material for trapping the unsaturated hydrocarbon in hydrocarbon raw materials
  • Material for trapping the unsaturated hydrocarbon in hydrocarbon raw materials

Examples

Experimental program
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Effect test

example 1

[0024] Diatomaceous earth (produced by Shandong Shanwang Chemical Co., Ltd.) is selected as the carrier, and the pore volume measured by the mercury intrusion porosimetry is 1.05mL / g, accounting for 95% of the pore volume of the pore diameter 6nm~10000nm. %, the specific surface area measured by low temperature nitrogen adsorption method is 5m 2 / g.

[0025] Take 20.0011 g of the above-mentioned carrier with a particle size of 200-300 μm, place it in 20 ml of an aqueous solution containing 0.01% by mass silver nitrate and 0.01% by mass platinum nitrate, evaporate and remove water, and dry at 120° C. for 2 hours to obtain a capture material, wherein the silver nitrate The content is 0.01% by mass, and the content of platinum nitrate is 0.01% by mass.

[0026] Pack the trapping material prepared above into a packed column tube with an inner diameter of 2mm and a length of 30mm. The desorption time of n-undecane was measured by gas chromatography at 140°C as 1.533 minutes, and t...

example 2

[0028] Take 2.0006 g of the diatomaceous earth carrier described in Example 1, place it in 10 ml of an aqueous solution containing 0.02 mass % silver nitrate and 0.02 mass % aluminum nitrate, evaporate to remove water, and dry at 120 ° C for 2 hours to obtain a capture material, wherein the silver nitrate The content is 0.1% by mass, and the content of aluminum nitrate is 0.1% by mass.

[0029] Pack the trapping material prepared above into a packed column tube with an inner diameter of 2mm and a length of 30mm. The desorption time of n-undecane was measured by gas chromatography at 140°C as 1.533 minutes, and the peak extraction time of butene was 6.577 minutes. .

example 3

[0031] The capture material is prepared according to the method of Example 1, except that the carrier is placed in 20 ml of an aqueous solution containing 1.98% by mass of copper nitrate and 0.02% by mass of rhodium nitrate, and the content of copper nitrate in the obtained capture material is 1.98% by mass , The content of rhodium nitrate is 0.02% by mass.

[0032] Pack the trapping material prepared above into a packed column tube with an inner diameter of 2mm and a length of 30mm. The desorption time of n-undecane was measured by gas chromatography at 140°C as 1.533 minutes, and the peak extraction time of butene was 4.328 minutes. .

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Abstract

The invention discloses a material for trapping the unsaturated hydrocarbon in hydrocarbon raw materials, which comprises a porous and organic carrier, soluble silver salt or soluble copper slat carriThe invention discloses a material for trapping the unsaturated hydrocarbon in hydrocarbon raw materials, which comprises a porous and organic carrier, soluble silver salt or soluble copper slat carried by the carrier and modified metal salt; the modified metal salt is chosen from the soluble salts of metals from IIA to VA and the soluble salts of transition metals and the modified metal salt caned by the carrier and modified metal salt; the modified metal salt is chosen from the soluble salts of metals from IIA to VA and the soluble salts of transition metals and the modified metal salt canbe one or a plurality of these soluble salts. The trapping material has good effect in separating the unsaturated hydrocarbon and long chain alkanes, has good reversibility of adsorption, can be applibe one or a plurality of these soluble salts. The trapping material has good effect in separating the unsaturated hydrocarbon and long chain alkanes, has good reversibility of adsorption, can be applicable to the trapping material in an unsaturated hydrocarbon trap used for analyzing hydrocarbon composition with a multidimensional gas chromatography and can effectively improve the accuracy of thecable to the trapping material in an unsaturated hydrocarbon trap used for analyzing hydrocarbon composition with a multidimensional gas chromatography and can effectively improve the accuracy of theanalysis of the hydrocarbon raw material composition.analysis of the hydrocarbon raw material composition.

Description

technical field [0001] The invention is an adsorption material for unsaturated hydrocarbons in hydrocarbon raw materials, specifically, an adsorption material for enriching unsaturated hydrocarbons in petroleum fractions and separating them from other hydrocarbons. Background technique [0002] In the quality control of many petroleum products, the content of unsaturated hydrocarbons is an important control index. For example, the content of olefins and aromatics in gasoline, the content of aromatics in jet fuel and diesel, and the content of aromatics in solvent oil are all important quality indicators of products. Especially for gasoline products, since automobile exhaust emissions will bring serious pollution to urban air, and automobile exhaust is directly related to the composition of gasoline, therefore, the sulfur , benzene, olefins, and aromatics content put forward clear limit requirements. In order to meet the requirements of new formula gasoline, in the research...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G25/03C07C11/02
Inventor 徐广通姜元博
Owner CHINA PETROLEUM & CHEM CORP
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