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A kind of method that adopts silver carbonized Raney copper catalyst to carry out selective hydrogenation of C4 raffinate to prepare 1-butene

A carbonized Raney copper and catalyst technology, which is applied in the direction of carbon compound catalysts, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve the problem of uncontrollable doping amount of silver additives, achieve high utilization rate and reduce costs , the effect of high airspeed

Active Publication Date: 2021-09-21
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method is not absolutely universal. For example, the Raney copper catalyst is obtained by caustic alkali activation, and a small amount of alkali solution remains in the pores. The problem of hydrolysis of the salt solution when encountering the alkali solution makes the doping amount of the silver additive uncontrollable

Method used

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  • A kind of method that adopts silver carbonized Raney copper catalyst to carry out selective hydrogenation of C4 raffinate to prepare 1-butene
  • A kind of method that adopts silver carbonized Raney copper catalyst to carry out selective hydrogenation of C4 raffinate to prepare 1-butene
  • A kind of method that adopts silver carbonized Raney copper catalyst to carry out selective hydrogenation of C4 raffinate to prepare 1-butene

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] (1) 100 mass parts of liquid epoxy resin (Baling Petrochemical, CYD-128), 85 mass parts of curing agent methyltetrahydrophthalic anhydride (MeTHPA) (Guangdong Shengshida Technology and Trade Co., Ltd.), curing accelerator triethanolamine (TEA) (Tianjin Chemical Reagent No. 1 Factory) 1.5 parts by mass and stirred evenly.

[0058] (2) Take by weighing 50g step (1) prepared epoxy system and 150g copper-aluminum alloy powder and fully stir and mix, Cu content is 50% (weight) in the copper-aluminum alloy, and aluminum content 50% (weight), take appropriate amount Put the mixture into a cylindrical mold, mold it with a flat vulcanizer at a temperature of 120°C and a pressure of 7MPa for 30mins, and use a flat vulcanizer at a temperature of 150°C and a pressure of 7MPa for 90mins, and take it out after cooling to obtain a 2.0mm× About 3.0mm cylindrical catalyst precursor;

[0059] (3) Measure 100ml of catalyst precursor, put it into a tube-type high-temperature electric furn...

Embodiment 2

[0064] (1) Fully mix powdered phenolic resin and curing agent hexamethylenetetramine with a high-speed mixer, the weight ratio of hexamethylenetetramine to phenolic resin is 12 / 100; mix 100 grams of mixture with 300 grams of copper aluminum alloy The powder is fully mixed with a high-speed mixer, and the Cu content is 50% (weight) in the copper-aluminum alloy, and the aluminum content is 50% (weight);

[0065] (2) Heat up the tablet press to 90°C, put the above materials into the mold and press on the tablet press to form a sheet with a thickness of 2mm; raise the temperature of the tablet press to 150°C, and mold the formed sheet Put it into the mold and solidify under the pressure of 5MPa on the tablet press for 10min; cut the cured 2mm thick sheet into small rectangular particles of 3-5mm;

[0066] (3) Measure 100mL of small particles and carbonize them in a tube-type high-temperature electric furnace with a heating rate of 10°C / min and a furnace temperature of 650°C for 3 ...

Embodiment 3

[0071] (1) Fully mix powdered phenolic resin and curing agent hexamethylenetetramine with a high-speed mixer, the weight ratio of hexamethylenetetramine to phenolic resin is 12 / 100; mix 150 grams of mixture with 300 grams of copper aluminum alloy The powder is fully mixed with a high-speed mixer, and the Cu content is 50% (weight) in the copper-aluminum alloy, and the aluminum content is 50% (weight);

[0072] (2) Heat up the tablet press to 90°C, put the above materials into the mold and press on the tablet press to form a sheet with a thickness of 2mm; raise the temperature of the tablet press to 150°C, and mold the formed sheet Put it into the mold and solidify under the pressure of 5MPa on the tablet press for 10min; cut the cured 2mm thick sheet into small rectangular particles of 3-5mm;

[0073] (3) Measure 100mL of small particles and carbonize them in a tube-type high-temperature electric furnace with a heating rate of 10°C / min and a furnace temperature of 650°C for 6 ...

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Abstract

The invention discloses a method for preparing 1-butene through selective hydrogenation of C4 raffinate by adopting a silver carbonized Raney copper catalyst. The method comprises: in the presence of hydrogen, at a reaction inlet temperature of 30°C to 60°C and a reaction pressure of 0.6 to 3.5MPa, in a fixed-bed reactor, the liquid-phase C4 fraction is contacted with a silver carbonized Raney copper catalyst for hydrogenation reaction to prepare 1‑Butene. The non-noble metal catalyst used in the invention can effectively reduce the cost of the catalyst; the activated silver-carbonized Raney copper alloy particles have highly dispersed copper particles, the utilization rate of active components is high, the hydrogenation activity is high, and the operating space velocity is high.

Description

technical field [0001] The present invention relates to the technical field of C4, and furthermore, relates to a method for preparing 1-butene by selective hydrogenation of C4 raffinate by using a silver carbonized Raney copper catalyst. Background technique [0002] 1-butene is an important chemical raw material, mainly used for copolymerization of linear low-density polyethylene (LLDPE) monomers and production of poly-1-butene plastics, and can be used as the main raw material for the production of high value-added sec-butylene Alcohol, methyl ethyl ketone and other chemical products; 1-butene oligomerization can produce carbon eight, carbon dodecene, these olefins are excellent raw materials for the preparation of surfactants. It is also widely used in petrochemical, fine chemical, pharmaceutical, pesticide and other fields. [0003] In the method of producing butene by cracking carbon four, one is to directly carry out selective hydrogenation of cracked carbon four, and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C5/05C07C11/08B01J23/89B01J37/08
CPCB01J23/8926B01J37/0018B01J37/084C07C5/05C07C2523/89C07C11/08
Inventor 吴佳佳鲁树亮乐毅刘海江徐洋汪晓菁郝雪松彭晖
Owner CHINA PETROLEUM & CHEM CORP
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