Saturated hydrogenation method of petroleum hydrocarbon cracking C3-C8 fractions

A technology of petroleum hydrocarbons and distillates, applied in chemical instruments and methods, petroleum industry, through selective hydrofining, etc., can solve the problems of low catalytic activity and loss of activity of non-precious metals, achieve excellent cost and effect, and prevent coking , the effect of low temperature reaction

Active Publication Date: 2016-11-09
四川睿恒化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a low-temperature saturated hydrogenation method for cracking C3-C8 fractions of petroleum hydrocarbons; the catalyst used in this method is a catalyst containing noble metals, and this catalyst has both hydrogenation activity and excellent stability. Dual features, overcome the disadvantages of traditional precious metal catalysts that are easy to poison and lose activity, and non-precious metals have low catalytic activity, and are a catalyst with wide application prospects

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  • Saturated hydrogenation method of petroleum hydrocarbon cracking C3-C8 fractions

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Embodiment 1

[0020] A saturated hydrogenation method for cracking C3-C8 fractions of petroleum hydrocarbons, characterized in that the method comprises contacting and reacting the fractions with hydrogen under hydrogenation conditions and in the presence of a hydrogenation catalyst, wherein the catalyst used is Pt-Co-Cu The base hydrogenation catalyst is characterized in that the hydrogenation process conditions are: fixed bed reactor inlet temperature 30°C, reaction temperature 350°C, reaction pressure 3.0MPa, liquid volume space velocity 3.0h -1 , the volume ratio of hydrogen to oil is 200; the Pt-Co-Cu-based hydrogenation catalyst is prepared by loading the main active component and the auxiliary active component on the carrier, including the main active components Pt, Co and Cu, and the auxiliary active components are W, Zr, La and P, the carrier is X, based on the mass percentage of the catalyst composition: containing platinum 0.05%, cobalt 3%, copper 5%, tungsten 0.5%, zirconium 0.5%...

Embodiment 2

[0022] A saturated hydrogenation method for cracking C3-C8 fractions of petroleum hydrocarbons, the method comprises contacting and reacting the fractions with hydrogen under hydrogenation conditions and in the presence of a hydrogenation catalyst, wherein the catalyst used is a Pt-Co-Cu-based hydrogenation catalyst , characterized in that the hydrogenation process conditions are: fixed bed reactor inlet temperature 40°C, reaction temperature 400°C, reaction pressure 3.0MPa, liquid volume space velocity 4.0h -1 , the volume ratio of hydrogen to oil is 260; the Pt-Co-Cu-based hydrogenation catalyst is divided into W, Zr, La and P on the carrier, and the carrier is X, based on the mass percentage of the catalyst composition: containing 0.1% platinum, cobalt 6%, 10% copper, 1.5% tungsten, 1% zirconium, 2% lanthanum, 1% phosphorus, and the balance is carrier X, wherein carrier X is a composite carrier, Al doped by Na 2 o 3 Composite composition with MCM-41 molecular sieve at a we...

Embodiment 3

[0024]A saturated hydrogenation method for cracking C3-C8 fractions of petroleum hydrocarbons, characterized in that the method comprises contacting and reacting the fractions with hydrogen under hydrogenation conditions and in the presence of a hydrogenation catalyst, wherein the catalyst used is Pt-Co-Cu The base hydrogenation catalyst is characterized in that the hydrogenation process conditions are: fixed bed reactor inlet temperature 50°C, reaction temperature 450°C, reaction pressure 4.0MPa, liquid volume space velocity 5.0h -1 , the hydrogen-to-oil volume ratio is 400; the Pt-Co-Cu-based hydrogenation catalyst is prepared by loading the main active components and auxiliary active components on the carrier, including the main active components Pt, Co and Cu, and the auxiliary active components are W, Zr, La and P, the carrier is X, based on the mass percentage of the catalyst composition: containing platinum 0.07%, cobalt 4%, copper 7%, tungsten 0.8%, zirconium 0.6%, lant...

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Abstract

The invention provides a saturated hydrogenation method of petroleum hydrocarbon cracking C3-C8 fractions. According to the method, fractions and hydrogen are in contact reaction under hydrogenation conditions and in the existence of a hydrogenation catalyst, wherein the catalyst is a Pt-Co-Cu based hydrogenation catalyst. The method is characterized in that according to the hydrogenation process conditions, the inlet temperature of a fixed bed reactor is 30-50 DEG C, the reaction temperature is 80-450 DEG C, the reaction pressure is 1.0-4.0MPa, the liquid volume space velocity is 1.0-5.0h/1, and the hydrogen to oil volume ratio is 100-400. The active ingredient of the catalyst selected by the saturated hydrogenation method contains noble metal Pt with extremely low content, but Pt together with other two metals Co and Cu are used as active ingredients, so that the defect that high-content Pt serving as the active ingredient is easily inactivated can be avoided on the one hand, and on the other hand, the activity of the catalyst is sufficiently guaranteed and the cost and effect of the catalyst are excellent.

Description

technical field [0001] The invention relates to a method for saturated hydrogenation of petroleum hydrocarbon cracking C3-C8 fractions, the method is suitable for hydrogenating unsaturated hydrocarbon raw materials into corresponding saturated hydrocarbons, especially for cracking petroleum hydrocarbons C3-C8 fractions Hydrogenation of alkynes, dienes, and monoalkenes to the corresponding alkanes. Background technique [0002] Petrochemical industry is an important part of the chemical industry, plays an important role in the development of the national economy, and is one of the pillar industries of our country. Petrochemical refers to the processing industry that uses oil and natural gas as raw materials to produce petroleum products and petrochemical products. The first step in the production of petrochemical products is to crack raw oil and gas (such as propane, gasoline, diesel, etc.) to produce basic chemical raw materials represented by ethylene, propylene, butadiene...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/40B01J29/076
CPCB01J29/076B01J2229/20C10G45/40C10G2300/1037C10G2300/1088
Inventor 向红先
Owner 四川睿恒化工有限公司
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