Method for preparing metal phosphide hydrogenation refining catalyst by using hydrogen plasma reduction mehtod

A metal phosphide and plasma technology, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc., can solve problems such as consumption, large hydrogen, and unsatisfactory activity, and achieve wide application prospects and economical The effect of high-efficiency deep desulfurization and denitrification, high catalytic reactivity

Inactive Publication Date: 2007-08-08
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For more than 60 years, although sulfide catalysts have been continuously improved, their activity still cannot meet the requirements of increasingly stringent environmental regulations
Therefore, the preparation of transition metal phosphides takes a long time and consumes a lot of hydrogen

Method used

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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0009] Specific embodiments of the present invention will be described in detail below.

[0010] Preparation of catalyst precursor

[0011] Taking the preparation of silica-supported molybdenum-sulfur-phosphorus catalyst precursor by co-impregnation method as an example, MoO 3 The loading amount is 40% (mass). Take by weighing 3.65 grams of ammonium molybdate ((NH 4 ) 6 Mo 7 o 24 .4H 2 O) and 2.729 grams of diammonium phosphate ((NH4) 2 HPO 4 ), add 10 ml of deionized water, and dissolve to make an impregnation solution. Weigh 3 grams of porous silica, add impregnation solution, and impregnate at room temperature for 12 hours. The slurry was dried at 120° C. for 12 hours, and then fired at 500° C. in air for 5 hours to obtain an oxide precursor.

[0012] Catalyst preparation

[0013] The oxide precursor is made into 0.3-0.5 mm particles by tableting, and 0.8 g is weighed and loaded into a non-equilibrium plasma reactor with an inner diameter of 8 mm. The distance b...

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Abstract

The invention discloses a solid catalyst in the oil distill hydrogenating course, which comprises the following steps: adopting metal oxide and phosphate salt to make oxide primer; placing the primer in the plasma reactor; aerating hydrogen at 10-600h-1; loading 10-20kV to generate plasma; reducing for 10-180 min; obtaining deep solid as phosphate catalyst.

Description

technical field [0001] The invention belongs to the technical fields of coal processing, petroleum processing and petrochemical industry, and relates to a solid catalyst used in the hydrorefining process of petroleum distillate oil (gasoline, kerosene and diesel oil, etc.). technical background [0002] With the continuous and rapid development of my country's economy and the rapid increase of car ownership, my country's oil consumption has increased rapidly in recent years. A large amount of SOx and NOx produced by the combustion of sulfur and nitrogen in petroleum distillates will seriously pollute the atmospheric environment, which will not only damage the health of the public, but also cause disasters such as acid rain and destroy the ecological environment. In order to reduce the pollution of sulfur-containing compounds and nitrogen-containing compounds from the source, countries around the world have formulated increasingly stringent fuel standards in recent years. At...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/19C10G45/04
Inventor 王安杰秦明磊郭洪臣王丽李翔
Owner DALIAN UNIV OF TECH
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