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Method for preparing high-quality fuel oil and/or chemical raw materials from biomass pyrolysis liquid

A technology for biomass pyrolysis and chemical raw materials, which is applied in the field of biomass pyrolysis liquid to prepare high-quality fuel oil and/or chemical raw materials, can solve problems such as catalyst deactivation, and achieve the effect of preventing deactivation and avoiding polymerization and coking.

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

AI Technical Summary

Problems solved by technology

[0017] In order to solve the problem of rapid catalyst deactivation and coking caused by the rapid thermal polymerization of biomass pyrolysis liquid in the prior art, the present invention improves a method for preparing high-quality fuel oil and / or chemical raw materials from biomass pyrolysis liquid , this method can effectively solve the problems existing in the existing biomass pyrolysis liquid treatment process, and convert the biomass pyrolysis liquid into high-quality fuel oil and chemical raw materials through hydrogenation

Method used

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  • Method for preparing high-quality fuel oil and/or chemical raw materials from biomass pyrolysis liquid
  • Method for preparing high-quality fuel oil and/or chemical raw materials from biomass pyrolysis liquid
  • Method for preparing high-quality fuel oil and/or chemical raw materials from biomass pyrolysis liquid

Examples

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Effect test

Embodiment 1

[0061] as attached figure 1 As shown, the biomass pyrolysis solution 1 directly enters the reaction bed area of ​​the single-stage ebullating bed hydrodeoxygenation reactor 3 under the protection and protection of the hydrogen donor 2 at room temperature, and the biomass pyrolysis solution and the hydrogen donor The mass ratio is 1:0.5. The hydrogen donating agent is a petroleum hydrocarbon substance with a boiling point of 200-240°C. The mixed gas 9 formed after circulating hydrogen 7 and the gaseous substance 29 of the hydrocracking reaction is pressurized by the circulating hydrogen compressor 8 is mixed with the circulating oil 18 and heated by the heating furnace 10 to form a gas-liquid mixture 4 from the fluidized bed hydrodeoxygenation reaction The bottom of vessel 3 enters and provides fluidized kinetic energy for the hydrodeoxygenation reaction, and the temperature of the hydrodeoxygenation reaction is controlled at 280° C. by adjusting the temperature of the gas-liq...

Embodiment 2

[0100] In this embodiment, two-stage hydrodeoxygenation reactors in series and two-stage hydrocracking reactors in series are adopted. The hydrogen donor is a high-quality fuel product with a boiling point range of 180-240°C obtained in the present invention. In the first-stage hydrodeoxygenation reaction, the same catalyst Pd / C as in Example 1 is used, and in the second-stage hydrodeoxygenation reaction, the catalyst is NiMo / Al 2 o 3 , the temperature of the first-stage hydrodeoxygenation reaction is controlled at 280°C, and the temperature of the second-stage hydrodeoxygenation reaction is controlled at 330°C. Different catalysts are used in the fixed bed reaction, and the catalyst used in the first stage refining cracking reaction is CoMo / Al 2 o 3 , the reaction temperature is controlled at 180°C, and the liquid hourly volume space velocity is 4.0h -1 ; The catalyst for the second stage hydrocracking reaction is NiW / Al 2 o 3 The dimensions, specifications, catalyst lo...

Embodiment 3

[0116] In this example, a single-stage hydrodeoxygenation reactor is used, the biomass pyrolysis solution is a liquid product obtained by rapid pyrolysis of wheat straw, the hydrogen donor is light diesel oil, and the catalyst used in the hydrodeoxygenation reaction is Ru / C (Carbon-based material loaded with ruthenium), other operating conditions are the same as in Example 1. The hydrocracking reaction adopts a three-stage fixed-bed series connection method. The catalyst used in the first-stage and second-stage hydrocracking reactions is the same as that in Example 2, and other operating conditions are the same as in Example 2. The operating temperature of the third-stage hydrocracking reaction is The temperature is 380°C. The catalyst and other operating conditions of the third stage hydrocracking reaction are the same as those of the second stage hydrocracking reaction.

[0117] After 2000 hours of continuous operation, the properties of the high-quality fuel oil obtained in...

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Abstract

The invention discloses a method for preparing high-quality fuel oil and / or a chemical raw material from biomass pyrolysis liquid. The method comprises the following steps: carrying out hydrodeoxygenation reaction on biomass pyrolysis liquid in a catalyst full-mixed-flow circulating system in a fluidized bed reactor to obtain deoxidized oil, and carrying out hydrocracking reaction on the obtaineddeoxidized oil in a fixed bed reactor to obtain high-quality fuel oil and / or the chemical raw material. According to the method, condensation and coking of the biomass pyrolysis liquid can be prevented, the problem that a catalyst is fast to inactivate is solved, and the biomass pyrolysis liquid can be converted into high-quality fuel oil and chemical products which can be directly used by vehicles.

Description

technical field [0001] The invention relates to the fields of renewable energy and biomass energy, in particular to a method for preparing high-quality fuel oil and / or chemical raw materials from biomass pyrolysis liquid. Background technique [0002] Energy is the basic material for human survival and one of the symbols of social development. The development of society has an ever-increasing demand for energy. The fossil energy crisis caused by the extensive use of fossil energy and the increasingly severe environmental problems force humans to adjust the existing energy structure. It is very necessary to find a raw material and convert it into fuel and chemical raw materials to replace existing fossil energy, especially liquid fossil energy. [0003] Biomass (broadly speaking) refers to various organisms produced through photosynthesis using the atmosphere, water, land, etc. Biomass absorbs water and carbon dioxide during the growth process to convert solar energy into b...

Claims

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Application Information

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IPC IPC(8): C10G45/14
CPCC10G45/14Y02P20/133Y02E50/10C10G3/52C10G47/00C10G3/57C10G3/62Y02P30/20C10G47/30C10G2300/1011C10G2300/202C10G2300/301C10G2300/302C10G2300/308C10G2300/4006C10G2300/4012C10L1/04C10L2200/0469
Inventor 李立权汪华林袁远平陈崇刚李剑平赵颖杨雪晶李俊杰晁君瑞郑旭晖
Owner HENAN BUF BIOENERGY CO LTD
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