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Unsaturated hydrocarbon hydrogenation catalyst and application thereof

A hydrogenation catalyst, unsaturated technology, used in molecular sieve catalysts, purification/separation of hydrocarbons, catalyst activation/preparation, etc.

Active Publication Date: 2012-04-11
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The above improved method does not design the water resistance and carbon deposition resistance of the catalyst from the essence of the water adsorption and carbon deposition process

Method used

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  • Unsaturated hydrocarbon hydrogenation catalyst and application thereof
  • Unsaturated hydrocarbon hydrogenation catalyst and application thereof
  • Unsaturated hydrocarbon hydrogenation catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Take a spherical Ni-Mg / Al with a diameter of 3mm 2 o 3 50 grams of catalyst (produced by Beijing Research Institute of Chemical Industry, volume 72ml, the mass percents of Ni and Mg are respectively 12% and 2.2%, and the balance is Al 2 o 3 ; When the temperature rises to 500°C on the thermogravimetric analyzer, the weight loss is 2.8wt%; the specific surface area is 113m 2 / g, pore volume 0.62ml / g, average pore diameter 11.8nm, wherein the pores greater than 9nm account for 69% of the pore volume, and the pores less than 5nm account for 10% of the pore volume), the catalyst is packed into a fixed bed reactor (diameter 15mm, length 400mm, with two temperature display control points). After the temperature of the reactor is stabilized at 80°C, the hydrogen containing 2vol% trimethylethoxyalkane is passed into the reactor, the flow rate is controlled at 300ml / min, 80°C is maintained for 2h, and then the temperature is raised to 120°C, and the temperature is stable Aft...

Embodiment 2

[0069] Take a strip-shaped Pd-Ca / Al with a diameter of 1.5mm and a length of 1.5-5.0mm 2 o 3 -SiO 2 30 grams of catalyst (produced by Beijing Research Institute of Chemical Industry, volume 35ml, the mass percentages of Pd and Ca are respectively 0.08% and 0.5%, and the balance is Al 2 o 3 -SiO 2 , when the temperature rises to 300°C on the thermogravimetric analyzer, the weight loss is 0.9wt%; the specific surface area is 56m 2 / g, pore volume 0.45ml / g, average pore diameter 20.7nm, wherein the pores greater than 9nm account for 83% of the pore volume, and the pores less than 5nm account for 2% of the pore volume), the catalyst is packed in a 500ml there-necked flask, One of the three-neck bottles is connected to the serpentine cooling, the other is connected to the temperature control display point, and the other is the feeding port. Put the three-necked flask into an oil bath at 110° C., pour 100 ml of p-xylene containing 1.0 wt % trimethylchlorosilane into it, keep the...

Embodiment 3

[0075] Take a strip of Pd-Ni-La-Mg / ZrO with a diameter of 3mm 2 -Al 2 o 3 25 grams of catalyst (produced by Beijing Research Institute of Chemical Industry, volume 41ml, the mass percentages of Pt, Ni, La and Mg are 0.02%, 5.0%, 0.8% and 2.8% respectively, and the balance is ZrO 2 -Al 2 o 3 , when the temperature rises to 500°C on the thermogravimetric analyzer, the weight loss is 1.8wt%; the specific surface area is 34m 2 / g, pore volume 0.51ml / g, average pore diameter 60.8nm, wherein the pores greater than 9nm account for 92% of the pore volume, and the pores less than 5nm account for 0.7% of the pore volume), the catalyst is packed in a 500ml three-necked bottle, three-necked The bottle is placed in an oil bath, and one port of the three-neck bottle is connected to a cooling coil, one port is connected to a thermometer, and the other port is connected to the feeding port. First, 150ml of p-xylene was poured into the three-necked flask, and after the temperature of the ...

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Abstract

The invention discloses an unsaturated hydrocarbon hydrogenation catalyst, belonging to the technical field of hydrogenation catalysts. For meeting the requirements of water resistance and carbon deposition resistance on the unsaturated hydrocarbon hydrogenation catalyst, the catalyst contains a carrier, a metal active ingredient loaded on the carrier and a silane group, the silane group on the catalyst is grafted by performing silylanizing treatment, and the content of the silane group is 0.05-25 percent by weight; and the carrier is made of a porous material of which the specific surface area is 2-300 m<2> / g, the pore volume is 0.05-1.2 ml / g, the average pore diameter is 9-150 nanometers, over 50 percent of pore volume is included in pores with pore diameters being greater than 9 nanometers, and the pore volume of pores with pore diameters being smaller than 5 nanometers is less than 25 percent. Compared with the conventional catalyst, the catalyst disclosed by the invention has theadvantages of high water resistance, small amount of deposited carbon, longer service life and great reduction in the powder removal phenomenon of the catalyst when the catalyst is applied to unsaturated hydrocarbon hydrogenation.

Description

technical field [0001] The invention relates to a catalyst for hydrogenation or selective hydrogenation of unsaturated hydrocarbons and its application, more specifically, the invention relates to a metal component supported catalyst and its application in the hydrogenation of unsaturated hydrocarbons. Background technique [0002] The hydrogenation of unsaturated hydrocarbons is an important reaction in the chemical industry, such as hydrogenation of olefins, selective hydrogenation of alkynes and dienes to monoolefins, hydrogenation of benzene rings or selective hydrogenation, etc. have large-scale commercial applications ( Jens Hagen, Industrial Catalysis: A Practical Approach (II), 2006, P285-288). The hydrogenation catalysts currently used in industry are mainly supported metal catalysts, and the active components include metal single phases such as palladium, nickel, copper and cobalt or metal sulfides. In order to improve the activity or selectivity of the catalyst, ...

Claims

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Application Information

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IPC IPC(8): B01J23/755B01J23/58B01J23/89B01J23/62B01J23/50B01J37/00C07C7/167C07C7/163C07C5/10C07C5/11C07C11/04C07C5/09C10G45/36C10G45/48C10G49/06C10G45/40C10G45/52
CPCB01J23/8946C07C7/167B01J23/755B01J35/1014B01J35/08B01J35/023C10G2300/1092B01J35/1061B01J31/0274B01J2229/32B01J37/0209B01J23/40C10G45/36B01J23/72B01J35/1042B01J35/026B01J35/06C10G2300/1096B01J23/58B01J35/1038C10G2300/703B01J35/002C10G2400/02B01J37/18B01J27/13C10G45/38B01J23/626B01J23/78C10G2300/104B01J35/1066C10G45/40B01J35/1019B01J35/30B01J35/50B01J35/58B01J35/51B01J35/40B01J35/613B01J35/633B01J35/635B01J35/651B01J35/647B01J35/615B01J23/44B01J23/50B01J37/009B01J37/0219B01J37/0238B01J37/16C07C5/02C07C5/08C07C5/09
Inventor 黄龙戴伟田保亮彭晖唐国旗
Owner CHINA PETROLEUM & CHEM CORP
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