Biomass pyrolysis liquid hydrodeoxygenation oil hydrocracking catalyst as well as preparation method and application thereof

A hydrodeoxygenated oil, hydrocracking technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Hydrogen treatment and other issues, to achieve the effects of large-scale industrialization, good hydrothermal resistance, and low comprehensive operating costs

Inactive Publication Date: 2019-07-19
HENAN BUF BIOENERGY CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that biomass hydrodeoxygenated oil is difficult to further hydrotreat in the prior art, the present invention provides a hydrocracking catalyst for hydrodeoxygenated oil of biomass pyrolysis liquid and its preparation method

Method used

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  • Biomass pyrolysis liquid hydrodeoxygenation oil hydrocracking catalyst as well as preparation method and application thereof
  • Biomass pyrolysis liquid hydrodeoxygenation oil hydrocracking catalyst as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0029] 1.1 Preparation of alumina precursor: Prepare 5L of a mixed solution of aluminum sulfate and aluminum nitrate with a total concentration of 0.01mol / L, wherein the ratio of aluminum sulfate to aluminum nitrate is 1 / 5, which is recorded as solution A; add urea at room temperature, Stir continuously until the urea concentration is 0.05mol / L, and record it as solution B. Heat solution B to 90°C with a temperature gradient of 5°C / min, react at constant temperature for 1 hour, slowly cool down to room temperature, and replace it with 50L deionized water for 5 times to obtain sol C, which is spray-dried at 160°C and sprayed The pressure of the atomizing nozzle is 0.2-0.6MPa, and the diameter of the atomizing nozzle is 15±0.2μm. The obtained alumina precursor was calcined at 600°C for 12 hours to obtain a spherical alumina carrier;

[0030] 1.2 Loading of active metals: 50 g of the alumina carrier obtained above was impregnated with Ni-Mo-containing impregnation solution for 8...

Embodiment 2

[0034] The preparation of alumina precursor was as described in 1.1. 50g of the above-obtained alumina carrier was impregnated with Ni-Mo-P-containing impregnation solution for 8 hours, dried at 120°C for 6 hours, and circulated three times. The final catalyst precursor was raised to 500°C at a rate of 10°C / min, and Calcined at constant temperature for 4 hours, the catalyst obtained was ECU-2. The methods described in 1.3 and 1.4 were used for catalyst strength test and hydrothermal deactivation rate determination respectively, and the results are listed in Table 1 and Table 2 respectively.

Embodiment 3

[0036] The preparation of alumina precursor was as described in 1.1. 50g of the above-obtained alumina carrier was impregnated with Ni-Mo-Cr-containing impregnation solution for 8 hours, dried at 120°C for 6 hours, and circulated three times, and the final catalyst precursor was raised to 500°C at a rate of 10°C / min, and Calcined at constant temperature for 4 hours, the catalyst obtained was ECU-3. The methods described in 1.3 and 1.4 were used for catalyst strength test and hydrothermal deactivation rate determination respectively, and the results are listed in Table 1 and Table 2 respectively.

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Abstract

The invention discloses a biomass pyrolysis liquid hydrodeoxygenation oil hydrocracking catalyst as well as a preparation method and application thereof. The catalyst comprises the following components in percentage by weight: A) 5-25wt% of active metal; B) 0.1-5wt% of an auxiliary agent; and C) 70-90wt% of a carrier, wherein the active metal component comprises two or more 3d and/or 4d metal elements; the auxiliary agent is one or more of IA, IIA and IIIA metal elements; and the carrier is spherical alumina, the single particle compressive hardness is not lower than 10 N, and the hydrothermaldeactivation rate at 800 DEG C is not lower than 1.5 d<-1>. The invention also discloses a preparation method and application of the catalyst. The problem that biomass hydrodeoxygenation oil is difficultly subjected to further hydrotreatment in the prior art is effectively solved.

Description

technical field [0001] The invention belongs to the field of bioenergy, and in particular relates to a hydrocracking catalyst for hydrodeoxygenation of biomass pyrolysis liquid and its preparation method and application. Background technique [0002] Biomass broadly includes all plants, microorganisms, animals that feed on plants and microorganisms and their wastes. In the previous research and industrialization process, people have relatively little research on the transformation of sugar, fat and cellulose-based biomass. Many, and have formed industrial scale production. However, lignin-based biomass has a larger content and a wide range of sources. Compared with the embarrassing situation of "competing with people for food and land with food" faced by sugar, fat, and cellulose-based biomass in my country, lignin-based biomass is in In our country, it is more manifested as agricultural and forestry wastes that have polluted the environment, such as straw, wood chips, and f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08B01J27/185B01J23/755
CPCB01J23/755B01J27/1853C10G45/08
Inventor 杨雪晶汪华林李立权袁远平陈崇刚赵颖李俊杰晁君瑞郑旭晖
Owner HENAN BUF BIOENERGY CO LTD
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