Preparation method of bio-based polyalpha-olefin synthetic oil

An olefin synthetic oil, bio-based technology, used in the preparation of liquid hydrocarbon mixtures, biofuels, polymerization treatment, etc., can solve problems such as process pollution, achieve green process, improve safety factor and efficiency, and cheap and easy to obtain raw materials. Effect

Active Publication Date: 2020-09-01
俏东方生物燃料集团有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] Catalysts used in the polymerization process include Ziegler catalysts, three-way catalysts (composed of alkali metal hydrides, aluminum and titanium halides) or Friedel-Crafts catalysts (BF 3 , AlCl 3 , SnCl 4 , SnF 4 ), etc., most of them have process pollution

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  • Preparation method of bio-based polyalpha-olefin synthetic oil
  • Preparation method of bio-based polyalpha-olefin synthetic oil
  • Preparation method of bio-based polyalpha-olefin synthetic oil

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preparation example Construction

[0056] The preparation method of bio-based polyalpha-olefin synthetic oil specifically comprises the following steps:

[0057] Step 1: The lignocellulosic raw material is continuously hydrolyzed through the tube family cascade decompression to obtain lignin semi-coke (the percentage of ingredients: semi-coke content 88-92%, ash content 8-12%, calorific value 5500-6500 kcal);

[0058] Step 11: first-stage hydrolysis of lignocellulosic raw materials, converting hemicellulose in lignocellulosic raw materials into xylooligosaccharides;

[0059] The first stage of hydrolysis: the temperature is 200-240°C, the pressure is 2.2-2.4MPa, and the time is 0.5-5 minutes. The reaction converts the hemicellulose in the lignocellulosic raw material into xylooligosaccharides.

[0060] Step 12: the second hydrolysis of the lignocellulosic raw material, converting the cellulose in the lignocellulosic raw material into cellooligosaccharides;

[0061] The second stage of hydrolysis: the temperatu...

Embodiment 1

[0114] (1) 200kg corn stalks (moisture content 25%) are crushed to less than 1cm, and enter the tube family cascade decompression continuous hydrolysis reactor, including the first stage of hydrolysis: temperature is 205-210°C, pressure is 2.2-2.3MPa, time 3 Minutes, the hemicellulose in the straw is transformed into xylooligosaccharides and leached out; cellulose and lignin enter the second stage of hydrolysis: the temperature is 180-185 ° C, the pressure is 1.4-1.5 MPa, and the time is 20 minutes. The cellulose is converted into cellooligosaccharides and leached out; lignin enters the third stage of hydrolysis: 95%wt acetic acid catalyst, the temperature is 180-185°C, the pressure is 1.4-1.5MPa, and the time is 10 minutes, lignin is converted into wood Plain semi coke 114.2kg (water content 37-40%).

[0115] (2) Using 72kg of dry lignin semi-coke as raw material (water content 2-5%), using a space furnace gasification device, the output of the air separation device is 52000N...

Embodiment 2

[0128] (1) 200kg corn stalks (moisture content 25%) are crushed to less than 1cm, and enter the tube family cascade decompression continuous hydrolysis reactor, including the first stage of hydrolysis: temperature is 205-210°C, pressure is 2.2-2.3MPa, time 3 Minutes, the hemicellulose in the straw is transformed into xylooligosaccharides and leached out; cellulose and lignin enter the second stage of hydrolysis: the temperature is 180-185 ° C, the pressure is 1.4-1.5 MPa, and the time is 20 minutes. The cellulose is converted into cellooligosaccharides and leached out; lignin enters the third stage of hydrolysis: 95%wt acetic acid catalyst, the temperature is 180-185°C, the pressure is 1.4-1.5MPa, and the time is 10 minutes, lignin is converted into wood Plain semi coke 118.2kg (water content 37-40%).

[0129] (2) Using 74kg of dry lignin semi-coke as raw material (water content 2-5%), using a space furnace gasification device, the output of the air separation device is 52000N...

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Abstract

The invention discloses a preparation method of bio-poly-alpha-alkene synthetic oil. The preparation method comprises the following steps: hydrolyzing wood fiber raw materials to obtain lignin semi-coke which comprises the following active ingredients in percentage by weight: 88-92% of semi-coke, and 8-12% of ash; vaporizing the lignin semi-coke to obtain crude synthesis gas; producing synthesis gas from the crude synthesis gas by adopting a transformation and elution technology; performing fischer-tropsch synthesis to produce primary fraction; and producing the bio-poly-alpha-alkene synthetic oil from the primary fraction by adopting two-segment polymerization and alkylation technology. The preparation method has the characteristics of being low-cost and easily available for raw materials, green in process, reliable in product performance, and the like, and is suitable for industrial production.

Description

technical field [0001] The present invention relates to a kind of biochemical technology, specifically, relate to a kind of preparation method of bio-based polyalpha-olefin synthetic oil Background technique [0002] The history of human use of lubricants is itself a history of social development, from the simple use of environmentally friendly animal and vegetable oil lubricants in the early days to the extensive use of various high-performance lubricants represented by petroleum-based oils, but harmful to the environment. lubricants, and then seek a new concept of modern lubrication - "lubrication + environmental protection + energy saving". [0003] Modern industry puts forward requirements for lubricants such as wide temperature range, low friction resistance, high wear resistance, long life, and environmental friendliness. The currently used mineral-based lubricants all have a common feature, that is, due to the continuous increase in demand, they have reached the limi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02C10K1/34C10K1/16C10G2/00C10G57/02
CPCC10B53/02C10G2/332C10G57/02C10K1/16C10K1/34Y02E50/10Y02E50/30
Inventor 颉二旺孙家伟王静王会涛赵瑞岗
Owner 俏东方生物燃料集团有限公司
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