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Co-refining catalyst for kerosene hydrogenation and its preparation method and application method

A catalyst and kerosene technology, applied in the direction of molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problem of difficult recovery of catalyst molybdenum, achieve good hydrocracking activity, high product oil yield, and simple operation Effect

Active Publication Date: 2017-05-17
NINGBO RES & DESIGN INST OF CHEM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, catalyst molybdenum is not easy to recover, and the product oil yield needs to be further improved

Method used

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  • Co-refining catalyst for kerosene hydrogenation and its preparation method and application method

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Effect test

preparation example Construction

[0025] The preparation method of above-mentioned catalyst, by the following steps:

[0026] 1. According to the formula of the carrier, add the carrier into the calculated amount of weakly acidic solution containing zinc chloride or tin chloride, stir at 30-90°C for 1-4 hours and then wash, then wash the carrier at 80 drying at a temperature of ~150°C for 1 to 6 hours to obtain the carrier;

[0027] 2. According to the formula of iron salt and nickel salt, mix iron salt and nickel salt to form an aqueous solution, immerse the carrier prepared in step 1 in the aqueous solution of iron salt and nickel salt at a temperature of 30-90°C for 1-8 hours, Then filter the impregnated carrier, add a weak alkaline solution to the filtered carrier, stir for 1 to 4 hours, and then put it in a temperature of 80 to 150°C and dry for 4 to 18 hours to prepare the active ingredient the catalyst;

[0028]3. The catalyst prepared in step 2 is vulcanized under the action of a vulcanizing agent at...

Embodiment 1

[0033] Take the calculated amount of gamma zeolite, add it to the calculated amount of acetic acid solution containing zinc chloride (pH is 6.0), stir at 60°C for 2 hours, wash it, put it into a 120°C oven and dry it for 2 hours to obtain additive-containing carrier.

[0034] Take the calculated amount of ferric chloride and nickel sulfate, mix them into an aqueous solution, immerse the carrier containing additives prepared above in the aqueous solution of ferric chloride and nickel sulfate at a temperature of 80°C for 4 hours, and add to the carrier after filtering A small amount of sodium carbonate solution (pH 10.0), stirred for 2 hours, and then dried in an oven at 150°C for 8 hours, was prepared as a catalyst containing active components.

[0035] The catalyst prepared above was sulfided under the action of carbon disulfide at a temperature of 200° C. to finally obtain the finished catalyst C1 with hydrogenation activity.

Embodiment 2

[0037] Take the calculated amount of zeolite beta, add it into the calculated amount of acetic acid solution containing zinc chloride (pH is 6.0), stir at 60°C for 3 hours, wash it, put it into a 120°C oven and dry it for 3 hours to obtain additive-containing carrier.

[0038] Take the calculated amount of ferrous chloride and nickel nitrate, mix them into an aqueous solution, immerse the carrier containing additives prepared above in the aqueous solution of ferrous chloride and nickel nitrate at a temperature of 70°C for 4 hours, and filter the carrier A small amount of sodium carbonate solution (pH 10.0) was added to the mixture, stirred for 3 hours, and then dried in an oven at 150°C for 12 hours to prepare a catalyst containing active components.

[0039] The catalyst prepared above was vulcanized under the action of dimethyl disulfide at a temperature of 250° C. to finally obtain the finished catalyst C2 with hydrogenation activity.

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Abstract

The invention relates to a coal-oil hydrogenation co-processing catalyst as well as a preparation method and an application method thereof. The catalyst consists of a carrier, an active component and an additive, wherein the specific surface area of the carrier is 300 to 600 m<2> / g, the pore volume of the carrier is 0.5 to 1.0 cm<3> / g, the carrier is one or more of gamma zeolite, beta zeolite, ZSM-5 and KIT-6 powder with the particle size less than 200 micrometers, the active component is iron and nickel, and the additive is one or more of zinc chloride and tin chloride. The preparation method comprises the following steps of preparing the carrier, preparing the active component and preparing the additive. According to the application method of the catalyst, the catalyst and raw material coal powder are mixed and then added into a high pressure reaction kettle together with heavy oil, the addition amount of the catalyst is 0.5 to 5 parts by weight of the total mass of the coal and heavy oil, and the mass ratio of the coal to the oil is 1: 1. The catalyst is large in specific surface area, reasonable in preparation process, little in consumption, high in oil yield after the coal-oil hydrogenation co-processing and safe and convenient to use.

Description

technical field [0001] The invention relates to the technical field of coal chemical industry, in particular to a kerosene hydrogenation co-refining catalyst and its preparation method and application method. Background technique [0002] In recent years, with the development of science and technology and rapid economic growth, society has become more and more dependent on petroleum products. However, today's world is increasingly short of petroleum resources, and the problem of heavy and inferior petroleum resources is becoming more and more obvious. It is urgent to find energy sources to replace petroleum and develop new technologies for efficient utilization of petroleum. Heavy oil deep processing technology can not only effectively utilize oil resources, but also improve the economic benefits of oil processing enterprises. my country is a country rich in coal and short of oil. How to convert the abundant and cheap coal resources into liquid products has become an import...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J29/76B01J29/80C10G47/20C10G1/06
Inventor 项文裕项裕桥
Owner NINGBO RES & DESIGN INST OF CHEM IND
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