Reformed oil olefine saturation hydrogenation method

A technology for reforming oil and oil olefins, which is applied in the field of saturated hydrogenation of olefins. It can solve the problem that the bromine price cannot meet the product quality requirements, and achieve the effects of low metal content, high low-temperature activity, and reduced energy consumption.

Inactive Publication Date: 2003-02-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The purpose of the present invention is to overcome the shortcomings of the prior art method that the bromine value of the hydrogenation product at low temperature cannot meet the product quality requirements, and the loss of aromatics is serious at

Method used

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Examples

Experimental program
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Effect test

Example Embodiment

[0033] The preferred preparation method of the catalyst includes impregnating the alumina support with an aqueous solution containing molybdenum and / or tungsten compounds and nickel compounds and an aqueous solution containing cobalt compounds, and roasting and impregnating the alumina support with molybdenum and / or tungsten, nickel and cobalt, Wherein, the process of impregnating the alumina carrier with the aqueous solution of the cobalt-containing compound is carried out separately from the process of impregnating the alumina carrier with the aqueous solution of the tungsten and / or molybdenum compound and the nickel compound, and the process of impregnating the alumina with the aqueous solution of the cobalt compound The process of the support is after the alumina support is impregnated with an aqueous solution containing molybdenum and / or tungsten compounds and nickel compounds and calcined, the alumina support is impregnated with the aqueous solution containing the cobalt com...

Example Embodiment

[0048] Example 1

[0049] This example illustrates the preparation of the support for the catalyst used in the method provided by the present invention.

[0050] Weigh 5000 grams of aluminum hydroxide powder A (solid content is 70% by weight, pseudo-boehmite content is 85% by weight, produced by Shandong Aluminum Factory), mix with appropriate amount of water, and squeeze into a circumscribed circle with a diameter of 1.6 mm. Trefoil-shaped strips were dried at 120°C for 2 hours and burned at 600°C for 4 hours. The length of the obtained tri-lobal strips was cut to 2-3 mm to prepare carrier Z 1 . Carrier Z 1 The specific surface and pore volume are listed in Table 1. The specific surface and pore volume are measured by the low-temperature nitrogen adsorption BET method (the same below).

Example Embodiment

[0051] Example 2

[0052] This example illustrates the preparation of the support for the catalyst used in the method provided by the present invention.

[0053] Weigh 500 grams of aluminum hydroxide powder A (solid content 70% by weight, pseudo-boehmite content 85% by weight, produced by Shandong Aluminum Factory) and 500 grams of aluminum hydroxide powder B (solid content 70% by weight, Pseudo-boehmite content 70% by weight, produced by Changling Refinery Catalyst Plant), fully mix, add appropriate amount of water to mix evenly, use an extruder to extrude into a trilobal strip with a circumscribed circle diameter of 1.6 mm, and dry at 120°C 2 hours, 600°C for 4 hours, cut the length of the obtained trilobal strips to 2-3 mm to prepare carrier Z 2 . Carrier Z 2 The specific surface and pore volume are listed in Table 1.

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Abstract

The reformate olefine saturation hydrogenation method includes the following steps: in the presence of one kind of catalyst making the reformate contact with hydrogen gas, its contact temp. is 200-320 deg.C, contact pressure is not less than 0.7 MPa, liquid hourly space velocity is 1-8 hr (-1), and volume ratio of hydrogen and oil is not less than 30. The described catalyst contains tungsten oxide and/or molybdenum oxide, nickel oxide and cobaltous oxide loaded on the alumina, the catalyst is used as reference, the content of the described tungsten oxide and/or molybdenum oxide is 4 wt% to less than 10 wt%, the content is nickel oxide is 1-5 wt%, the content of cobaltous oxide is 0.01-1 wt% and the ratio of total atomicity of nickel and cobalt and total atomicity of nickel, cobalt, tungsten and/or molybdenum is 0.3-0.9.

Description

technical field [0001] The present invention relates to a method for saturated hydrogenation of olefins, more specifically, to a reformed product oil which selectively hydrogenates olefins in the reformed product oil to reduce the content of olefins in the reformed product oil Olefin Saturated Hydrogenation Process. Background technique [0002] Catalytic reforming is one of the main processes for the production of high-octane gasoline and light aromatics. During the reforming process of naphtha, due to high-temperature dehydrogenation reactions, a small amount of olefins will be produced, especially in continuous reforming processes During the process, due to the operation under high temperature and low pressure conditions, more olefins are produced, and the content of olefins in the reformed oil will be higher. For the catalytic reforming process aimed at producing aromatics, the presence of a small amount of olefins will affect the color and stability...

Claims

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Application Information

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IPC IPC(8): C10G45/32
Inventor 夏国富朱玫李明丰聂红石亚华黄海涛张润强李坚褚阳王同恩
Owner CHINA PETROLEUM & CHEM CORP
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