Method for selective hydrogenation of unsaturated polyhydrocarbon

A selective hydrogenation and unsaturated technology, which is applied in the field of catalytic selective hydrogenation of new catalysts in high-gravity rotating bed reactors, can solve the problems of inconvenient recovery of spent catalysts, high friction of catalyst particles, and loss of active metal components etc. to achieve the effects of reduced reaction pressure, increased catalytic reaction speed, and high selectivity

Active Publication Date: 2015-03-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this patented technology, the metal catalyst is placed in stainless steel mesh and fixed on the rotor of the supergravity reactor, which is not easy to process, and it is not convenient to recycle the spent catalyst; in addition, the friction between the catalyst particles is large, which is easy to wear and cause the metal active components drain

Method used

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  • Method for selective hydrogenation of unsaturated polyhydrocarbon
  • Method for selective hydrogenation of unsaturated polyhydrocarbon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1 Preparation of Plastic Carrier Catalyst B

[0053] The metal catalyst A was ground into a fine powder, and sieved to obtain a catalyst powder with a particle size of 100 mesh. Choose a 10-meter-long polypropylene plastic rope, and the diameter of the plastic rope is 1.5mm. Put the polypropylene plastic rope in the powder of the metal catalyst A, mold it with a flat vulcanizer at a temperature of 200°C and a pressure of 7 MPa for 10 minutes, take it out and cool it, and obtain the plastic-supported catalyst, which is called the plastic-supported catalyst B.

[0054] The plastic carrier catalyst B is densely wound to form a ring-shaped integral plastic inner part, and the plastic carrier catalyst is fixed on the rotor of the high-gravity rotating bed reactor. The integral plastic inner part and the rotor are connected by bolts. The plastic carrier catalyst B can The high-speed rotating rotors of the reactor move together.

[0055] Under the process conditions ...

Embodiment 2

[0061] Example 2 Preparation of Plastic Carrier Catalyst D

[0062] The metal catalyst C was ground into a fine powder and sieved to obtain a catalyst powder with a particle size of 100 mesh. Select 10-mesh nylon-6 mesh and place it in the powder of metal catalyst C, mold it with a flat vulcanizer at a temperature of 250°C and a pressure of 7 MPa for 10 minutes, take it out and cool it, and then obtain a plastic-supported catalyst, which is called a plastic-supported catalyst d.

[0063] The plastic carrier catalyst D is compacted to form a net-like integral plastic inner part, and the plastic carrier catalyst is fixed on the rotor of the high-gravity rotating bed reactor. The integral plastic inner part and the rotor are connected by bolts. The plastic carrier catalyst D can The high-speed rotating rotors of the reactor move together.

[0064] Under the conditions of Comparative Example 2, catalyst D was used to replace catalyst C, and the selective hydrogenation reaction f...

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Abstract

The invention discloses a method for selective hydrogenation of unsaturated polyhydrocarbon. The method is characterized in that a high-molecular compound carrier catalyst as an inner part is fixed on a rotor of a super-gravity rotary bed reactor so as to form a rotating catalyst bed layer; a hydrocarbon material and hydrogen pass through the rotating catalyst bed layer in a reverse flow manner or a parallel flow manner so that a selective hydrogenation reaction of the unsaturated polyhydrocarbon can be implemented in a super-gravity field. The method is good in heat and mass transfer effect, high in catalyst selectivity and high in yield.

Description

technical field [0001] The invention relates to a method for catalytic reaction, in particular to a method for carrying out catalytic selective hydrogenation with a novel catalyst in a high-gravity rotary bed reactor. Background technique [0002] In the petrochemical industry, the hydrocarbon raw materials produced by steam cracking and catalytic cracking contain one or more acetylene or diene compounds, and the separation process in the new coal chemical industry also produces a variety of acetylene or diene compounds. Alkyne compounds include acetylene, propyne, ethyl acetylene, vinyl acetylene, diacetylene, etc.; diene compounds include propadiene, 1,2-butadiene, 1,3-butadiene, etc. Alkyne compounds and diene compounds will affect the activity and process safety of polymerization catalysts used in the further processing of olefins. In the industry, fixed bed catalytic reactors are usually used for selective hydrogenation to remove such impurities. For example, the selec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/42
CPCC10G45/42
Inventor 易水生蒋海斌鲁树亮张晓红乔金樑彭晖戴伟
Owner CHINA PETROLEUM & CHEM CORP
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