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Method for preparing biofuel raw oil from crude Aleurites montana oil

A biofuel, tung oil technology, applied in fatty acid esterification, fatty acid hydrogenation and other directions, can solve the problems of inability to meet the index requirements, unstable properties, etc., to achieve clear and transparent appearance, simple operation and low investment cost. Effect

Active Publication Date: 2018-01-05
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the thousand-year-old tung oil contains a unique molecular structure of three conjugated double bonds, its physical and chemical properties are quite different from other crude oils (such as jatropha crude oil, gutter oil, etc.), using the existing oil refining technology [Edited by He Dongping, Grease Refining and Processing Technology, Chemical Industry Press, May 2010] for processing, can not meet the index requirements of hydrogenation method biofuel (bio-jet fuel / biodiesel) to the raw material oil; and its property is unstable, when heated and Under conditions such as light, it is easy to polymerize to form a colloidal product, which has a great impact on its subsequent refining and hydroprocessing, especially on the service life of the hydrodeoxygenation catalyst

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Millennium tung oil, 100ω% (in crude oil) octane and 0.1ω% (in crude oil) amorphous alloy Raney nickel catalyst (in catalyst, nickel 84ω%, aluminum 13%, chromium 1.4ω %, iron 0.6ω%, molybdenum 1.0ω%), heated to 160°C under fully stirred conditions, then fed hydrogen to maintain the pressure of 0.1MPa, cooled and filtered after hydrogenation for 3 hours to obtain the hydrogenated oil of Millennium Tung Heating to 90°C with stirring, then adding 3ω% (calculated as hydrogenated oil) composite adsorbent (activated clay 55ω%, activated carbon 25ω%, attapulgite 10ω%, zeolite 10ω%), stirred at constant temperature for 20min and then filtered. The biofuel raw material oil prepared from the millennium tung oil is obtained.

[0026] The index parameters of the obtained raw material oil: the content of conjugated trienoic acid (carnation acid) in the fatty acid composition is 0.6ω%, the phosphorus content is 2.8ug / g, the metal content is 7.2ug / g, the unsaponifiable matter content ...

Embodiment 2

[0028] Millennium tung oil, 300ω% (in crude oil) tetradecane and 0.3ω% (in crude oil) amorphous alloy Raney nickel catalyst (in catalyst, nickel 90ω%, aluminum 8%, chromium 1ω %, iron 0.3ω%, molybdenum 0.7ω%), heated to 200°C under fully stirred conditions, then fed hydrogen to maintain the pressure of 0.3MPa, cooled and filtered after hydrogenation for 5 hours to obtain the hydrogenated oil of Millennium Tung Heating to 110°C under stirring conditions, then adding 5ω% (calculated as hydrogenated oil) composite adsorbent (calculated as adsorbent, activated clay 70ω%, activated carbon 20ω%, attapulgite 5ω%, zeolite 5ω%), constant temperature After stirring for 30 minutes, it was filtered to obtain biofuel raw material oil prepared from the thousand-year-old tung oil.

[0029] The index parameters of the obtained raw material oil: the content of conjugated trienoic acid (carnation acid) in the fatty acid composition is 0.2ω%, the phosphorus content is 1.8ug / g, the metal content ...

Embodiment 3

[0031] Millennium tung oil, 200ω% (in crude oil) n-octane and 0.2ω% (in crude oil) amorphous alloy Raney nickel catalyst (in catalyst, nickel 87.5ω%, aluminum 10%, chromium 1.2ω%, iron 0.5ω%, molybdenum 0.8ω%), heated to 180°C under the condition of full stirring, then feed hydrogen to keep the pressure at 0.2MPa, cool and filter after hydrogenation reaction for 4 hours to obtain the hydrogenated oil of Millennium Tung It is heated to 100°C with stirring, and then 4ω% (calculated as hydrogenated oil) composite adsorbent is added (calculated as adsorbent, activated clay 63ω%, activated carbon 22ω%, attapulgite 7ω%, zeolite 8ω%) , stirred at constant temperature for 25 minutes and then filtered to obtain biofuel raw material oil prepared from thousand-year-old tung oil.

[0032] The index parameters of the obtained raw material oil: the content of conjugated trienoic acid (carnation acid) in the fatty acid composition is 0.4ω%, the phosphorus content is 2.1ug / g, the metal content ...

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Abstract

The invention relates to a method for preparing biofuel raw oil from crude Aleurites montana oil. The method comprises the following steps: heating crude Aleurites montana oil, an organic solvent anda hydrogenation catalyst under the condition of thorough stirring, then introducing hydrogen to maintain a pressure, carrying out a hydrogenation reaction and then carrying out filtering so as to obtain hydrogenated Aleurites montana oil; heating the hydrogenated Aleurites montana oil under a stirring condition, then adding an adsorbent for treatment, and carrying out filtering after isothermal stirring so as to obtain the biofuel raw oil. According to the invention, through usage of the organic solvent, the amorphous alloy Raney nickel catalyst and matching process conditions, the hydrogenated Aleurites montana oil with no more than 1 omega% of conjugated trienoic fatty acid (eleostearic acid) is prepared from the crude Aleurites montana oil directly through hydrogenation without removalof impurities, and the problems of instable properties and difficult impurity removal of the crude Aleurites montana oil are overcome.

Description

technical field [0001] The invention belongs to the technical field of biofuel raw material oil and its preparation, and in particular relates to a method for preparing biofuel raw material oil from thousand-year-old tung oil. Background technique [0002] Energy is the material basis for the survival and development of human society. With the continuous and rapid development of the world economy, the demand for energy in various countries has increased sharply, while the international energy supply has become increasingly tense, and energy pressure has become increasingly prominent. It has become a major issue affecting the sustainable development of human society. Finding alternatives to petroleum has become a global consensus. As a clean energy source, liquid biofuels, especially bio-jet kerosene / biodiesel prepared by hydrogenation, can reduce carbon dioxide emissions by about 50% during their entire life cycle compared with petroleum-based aviation kerosene / diesel, which...

Claims

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Application Information

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IPC IPC(8): C11C3/12C11C3/10
Inventor 董平贾云刚邵伟赵仲阳何玉莲李建忠王桂芝邓旭亮赵光辉姜伟何昌洪王东军李瑞峰邵荣兰牛明
Owner PETROCHINA CO LTD
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