Liquid-phase dechlorinating method for chlorine-contained alkylate oil

A technology for chloroalkylation and dechlorination alkylation, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., to achieve the effect of reducing heat exchange equipment, avoiding dew point corrosion and mild reaction conditions

Inactive Publication Date: 2017-08-01
SINOPEC ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the process of CN103025687A requires gas / liquid separation, and the dechlorinated product containing HCl after separation may need to be further stripped; CN103270007A may require carrier gas during the dechlorination process

Method used

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  • Liquid-phase dechlorinating method for chlorine-contained alkylate oil
  • Liquid-phase dechlorinating method for chlorine-contained alkylate oil
  • Liquid-phase dechlorinating method for chlorine-contained alkylate oil

Examples

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Embodiment 1

[0038] The chlorinated alkylate oil 1 enters the hydrogenation feed heater / heat exchanger 5 under the injection of the new hydrogen 2 gas stream, and is heated to the temperature required for the hydrogenation reaction at 150°C under the action of the heat source. Then it enters the liquid phase hydrogenation unit 7 to react the organic chloride and hydrogen to generate a hydrogenation stream 8 containing HCl, and the hydrogenation catalyst is a Pt-Pd-containing catalyst. The HCl-containing hydrogenation stream 8 enters the liquid phase adsorption unit 9 from the bottom, and the HCl contained in the HCl-containing hydrogenation stream 8 is removed by the adsorption of the adsorbent, that is, the dechlorination agent KT405. The hydrogenated product 10 from which HCl is removed then enters the oil-gas separation unit 11 to separate the dechlorinated alkylate oil 13 and the hydrogen-containing hydrocarbons 12. The dechlorinated alkylated oil 13 can be used as a product delivery de...

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PUM

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Abstract

The invention provides a liquid-phase dechlorinating method for chlorine-contained alkalate oil. The method comprises the following steps: (1) liquid phase hydrogenation: under hydrogenation condition, enabling chlorine-contained alkalate oil in a liquid phase state to react with hydrogen and a hydrogenation catalyst to generate a hydrogenated product containing HCl; (2) liquid phase adsorption: contacting the hydrogenated product containing the HCl in a liquid phase state with an adsorbent and obtaining the hydrogenated product with the HCl removed after the HCl is adsorbed; (3) oil and gas separation: separating the hydrogenated product with the HCl removed from hydrogen and obtaining the dechlorinated alkalate oil. The synthesizing method utilizes liquid-phase hydrogenation, has moderate operation conditions and low hydrogen-oil ratio, avoids arranging equipment of hydrogenating furnaces, feeding furnaces, heating furnaces and the like, reduces investment and operation cost of devices and can achieve complete conversion of organic chloride.

Description

Technical field [0001] The present invention relates to the field of alkylated oil dechlorination, and more specifically, to a liquid-phase dechlorination method for chlorinated alkylated oil with integrated liquid-phase hydrogenation, liquid-phase adsorption and oil-gas separation. Background technique [0002] Alkylated oil is a common high-octane gasoline blending component. It has the advantages of high octane number, good sensitivity, low vapor pressure, wide boiling point range, no olefins and aromatics, and clean combustion. It is generally isomerized The chain reaction of alkanes and alkenes is formed. The current gasoline standards continue to improve, and the restrictions on the content of aromatics and olefins in gasoline are becoming stricter, and the importance of alkylated oil is becoming increasingly prominent. With the development of technology, chlorinated hydrocarbon components will be introduced into the alkylated oil in some cases. If this type of alkylated ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/202
Inventor 张立新吴德飞王恩民袁忠勋蒋荣兴刘凯祥
Owner SINOPEC ENG
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