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Method for upgrading and converting wood tar into diesel oil

A technology of wood tar and diesel oil, applied in the petroleum industry, processing hydrocarbon oil, hydrocarbon oil treatment products, etc., can solve the problems of low quality diesel products, insufficient fuel power, strong corrosion, etc., to improve industry competitiveness, increase heat value, the effect of low hydrogen consumption

Inactive Publication Date: 2017-02-22
ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE
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  • Application Information

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Problems solved by technology

[0011] In order to solve the technical problems of low quality of diesel products and insufficient fuel power due to the characteristics of high oxygen content, strong corrosion, low calorific value and poor stability of wood tar in the existing method for producing diesel oil from wood tar, the present invention provides A method for upgrading wood tar and converting diesel oil

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  • Method for upgrading and converting wood tar into diesel oil
  • Method for upgrading and converting wood tar into diesel oil
  • Method for upgrading and converting wood tar into diesel oil

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specific Embodiment approach 1

[0050] Specific embodiment one: this embodiment provides a kind of method that wood tar upgrades and converts diesel oil, such as figure 1 As shown, the whole cut wood tar 1-1 enters the raw material pretreatment unit 1 for raw material pretreatment; the pretreated whole cut wood tar enters the raw material pre-fractionation unit 2 to separate light wood tar 2-1, LPG2-2, heavy wood tar The light wood tar 2-3; the light wood tar 2-1 enters the hydrorefining reaction unit 3, and the light shale oil 3-2, hydrogen 3-3 and catalyst undergo catalytic hydrogenation reaction in the hydrogenation reactor to form The low-fraction oil 3-1 enters the product fractionation unit 4 for product fractionation; in the product fractionation unit 4, the hydrogenated oil is separated through the product fractionation tower and the diesel stripper to separate the main product hydrogenated diesel oil 4-3 and the by-product fuel gas 4 -1, light oil 4-2 and hydrogenated tail oil 4-4. The specific imp...

specific Embodiment approach 2

[0077] Specific implementation mode two: combination Figure 1-5 This embodiment will be described.

[0078] Such as figure 1As shown, the whole cut wood tar 1-1 enters the raw material pretreatment unit 1 for raw material pretreatment; the pretreated whole cut wood tar enters the raw material pre-fractionation unit 2 to separate light wood tar 2-1, LPG2-2, heavy wood tar The light wood tar 2-3; the light wood tar 2-1 enters the hydrorefining reaction unit 3, and the light shale oil 3-2, hydrogen 3-3 and catalyst undergo catalytic hydrogenation reaction in the hydrogenation reactor to form The low-fraction oil 3-1 enters the product fractionation unit 4 for product fractionation; in the product fractionation unit 4, the hydrogenated oil is separated through the product fractionation tower and the diesel stripper to separate the main product hydrogenated diesel oil 4-3 and the by-product fuel gas 4 -1, light oil 4-2 and hydrogenated tail oil 4-4.

[0079] Such as figure 2 ...

specific Embodiment approach 3

[0112] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the light wood tar is a distillate oil of ≤345°C; the heavy wood tar is a distillate oil of >345°C.

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Abstract

A method for upgrading and converting wood tar into diesel oil belongs to the field of deep processing of biomass oils. The invention is intended to solve the technical problem that since wood tar used in existing diesel production from wood tar features low oxygen content, high corrosiveness and poor stability, finished diesel oil of the wood tar is low in quality and insufficient in fuel energy; a transportation fuel is produced by subjecting full-range wood tar to material pretreatment and material pre-fractionation and passing through a hydrofining reaction unit and a product fractionation unit, with hydrogenated diesel oil as a main product and light oil and fuel gas as byproducts; heavy wood tar and hydrogenated tail oil thrown away in the technical process may be charged to downstream equipment for further processing and utilization, and an effective method for upgrading and converting wood tar into diesel oil is provided for biomass deep processing enterprises. By using the method, emerging industries can be opened for the countryside of China, the ecological problems such as air pollution and fire due to combustion of forestry and agricultural residues, such as stalks, can be solved, and reasonable development and sustainable utilization of biomass resources of China can be promoted.

Description

technical field [0001] The invention belongs to the field of deep processing of biomass oil, and relates to a process for upgrading wood tar and converting diesel oil. Background technique [0002] my country's agricultural and forestry waste resources are abundant and widely distributed. According to statistics, the annual production of various agricultural and forestry wastes in China is about 1.5 billion tons, and the annual output of crop straw alone reaches 700 million tons. million tons of standard coal, equivalent to 10% of my country's fossil energy consumption. It is estimated that by 2020, agricultural and forestry wastes will be equivalent to about 1.165 billion tons of standard coal, and the exploitable amount will be about 830 million tons of standard coal, providing resource guarantee for the sustainable development of biomass energy in my country. [0003] Wood tar is a liquid hydrocarbon produced by rapid pyrolysis of organic matter in agricultural and forest...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/00
CPCC10G67/00C10G2400/04C10G2400/06C10G2400/26
Inventor 陈松杨光周扬
Owner ENERGY & ENVIRONMENT RES INST OF HEILONGJIANG PROVINCE
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