Hydrocracking catalyst for preparing fuel oil from coal tar and preparation and application methods thereof

A hydrocracking and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, molecular sieve catalysts, etc. and other problems, to achieve the effect of improving quality, long service life, and meeting the requirements of long-term industrial operation

Active Publication Date: 2011-05-25
INST OF PROCESS ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The object of the present invention is to propose a new special hydrocracking catalyst for coal tar and its preparation and application method in view of the problems existing in the existing coal tar hydrogenation catalyst, and achieve high activity by strictly controlling the catalyst preparation process conditions The purpose of high stability coal tar hydrocracking catalyst
The catalyst of the present invention overcomes the general hydrocracking activity and hydrothermal stability and weak high temperature resistance when the existing petrochemical commercial hydrocracking

Method used

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  • Hydrocracking catalyst for preparing fuel oil from coal tar and preparation and application methods thereof
  • Hydrocracking catalyst for preparing fuel oil from coal tar and preparation and application methods thereof
  • Hydrocracking catalyst for preparing fuel oil from coal tar and preparation and application methods thereof

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Example Embodiment

[0028] Example 1

[0029] The preparation of hydrocracking catalyst L1 is as follows:

[0030] At room temperature, add 2.4 g of ammonium nitrate to 20 g of deionized water to make a solution. Then 15 g of mordenite was added. Stir evenly, in a water bath at 95°C for 12 hours. The slurry is filtered, the filter cake is dried at 130°C, and then roasted at 600°C for 4 hours in an air atmosphere containing 40% molar water vapor with a gas-agent volume ratio of 1200 to obtain modified zeolite, which is crushed and ground into fine powder spare. Commercially available SB aluminum hydroxide dry rubber powder 100g, mixed with 2g dichlorobenzene, and then poured into 100g hydrochloric acid aqueous solution, the mass concentration of the hydrochloric acid aqueous solution is 1.8%. Stir until it is gelatinous, filter, dry at 120°C, and calcinate in dry air at 500°C for 5 hours to obtain activated alumina powder. Mix the modified molecular sieve and activated alumina powder, add 3 g poly...

Example Embodiment

[0037] Example 2

[0038] The preparation of hydrocracking catalyst L2 is as follows:

[0039] At room temperature, add 3 g of ammonium nitrate to 20 g of deionized water to make a solution. Then 14 g of Hβ zeolite was added. Stir evenly, in a water bath at 90°C for 6 hours. The slurry is filtered, the filter cake is dried at 110°C, and then roasted at 600°C for 4 hours in an air atmosphere containing 30% molar water vapor with a gas-agent volume ratio of 600 to obtain modified zeolite, which is crushed and ground into fine powder spare. Commercially available SB aluminum hydroxide dry rubber powder 100g, mixed with 1.8g dichlorobenzene, and then poured into 100g hydrochloric acid aqueous solution, the mass concentration of the hydrochloric acid aqueous solution is 3%. Stir until it is gelatinous, filter, dry at 120°C, and calcinate in dry air at 500°C for 5 hours to obtain activated alumina powder. Mix the modified molecular sieve and activated alumina powder, add 4 g of sesa...

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Abstract

The invention provides a novel hydrocracking catalyst special for coal tar and a preparation method and an application method thereof aiming at the problems of the conventional coal tar hydrocracking catalyst. The hydrocracking catalyst consists of active ingredients, an aid and a carrier, wherein the active ingredients of the hydrocracking catalyst consist of WO3 and NiO, the aid is ReO, and the carrier consists of activated alumina, zeolite and BaO; and the active ingredients and the aid respectively account for 14 to 34 percent and 0.4 to 1.2 percent of the total mass of the catalyst based on an oxide form. The method for preparing the catalyst comprises the following steps of: preparing the carrier, pretreating the carrier, impregnating, performing catalyst post-treatment and the like; and the catalyst preparation conditions are strictly controlled by introducing novel ultrasonic impregnation technology. Compared with the prior art, the catalyst is excellent in surface physicochemical properties, has good aromatic hydrocarbon saturated activity and proper cracking activity, and excellent high-temperature resistance and compression resistance, and effectively improves the quality and yield of hydrotreated product oil.

Description

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Claims

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Application Information

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Owner INST OF PROCESS ENG CHINESE ACAD OF SCI
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