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Preparation method of castor-oil plant based biological aircraft fuel

An aviation fuel and castor-based technology, which is applied in the field of bio-aviation fuel preparation, can solve problems such as no bio-aviation fuel, and achieve the effects of stable source of raw materials, excellent performance at low temperature and high product quality.

Inactive Publication Date: 2013-09-25
TIANJIN NANKAI UNIV CASTOR ENG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, as confirmed by the Science and Technology Novelty Search Workstation of the Ministry of Education of Nankai University, there is no literature report on the preparation of bio-aviation fuel from castor oil.

Method used

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  • Preparation method of castor-oil plant based biological aircraft fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] In a fixed bed reactor, with Ni-Mo / Al 2 o 3 As a catalyst, the raw material castor oil is subjected to hydrodeoxygenation reaction. The reaction temperature is controlled at 340°C-360°C, the pressure is 2-4MPa, the LHSV is 1.0-1.5 / h, and the hydrogen-oil ratio is 600 Nm 3 / m 3 . After the reaction, the liquid product was collected in a sample bottle.

[0023] In a fixed-bed reactor, Pt / SAPO-11 was used as a catalyst to carry out hydroisomerization reaction on the hydrodeoxygenated liquid product, and the catalyst was reduced with hydrogen for 2 hours before use. The reaction temperature of the isomerization reaction is 384°C, the reaction pressure is 3MPa, the reaction volume space velocity is 3 / h, and the hydrogen-to-oil molar ratio is 12:1. After the reaction, the corresponding liquid product was collected.

[0024] The liquid product of hydroisomerization is fractionated, and the fraction between 200-300°C is taken as the final product.

[0025]

Embodiment 2

[0027] In a fixed bed reactor, with Ni / Al 2 o 3 As a catalyst, the raw material castor oil is subjected to hydrodeoxygenation reaction. The reaction temperature is controlled at 334°C-362°C, the pressure is 2.3-4.0MPa, the LHSV is 0.9-1.6 / h, and the hydrogen-oil ratio is 850 Nm 3 / m 3 . After the reaction, the liquid product was collected in a sample bottle.

[0028] In a fixed-bed reactor, Pd / ZSM-5 was used as a catalyst to carry out hydroisomerization reaction on the hydrodeoxygenated liquid product, and the catalyst was reduced with hydrogen for 2 hours before use. The reaction temperature of the isomerization reaction is 335°C, the reaction pressure is 3.9MPa, the reaction volume space velocity is 2.2 / h, and the hydrogen-to-oil molar ratio is 11.7:1. After the reaction, the corresponding liquid product was collected.

[0029] The hydroisomerized liquid product is distilled, and the fraction between 200-300°C is taken as the final product.

[0030]

Embodiment 3

[0032] In a fixed bed reactor, with Ni-Mo / Al 2 o 3 -MgAl 2 o 4 As a catalyst, the raw material castor oil is subjected to hydrodeoxygenation reaction. The reaction temperature is controlled at 346°C-380°C, the pressure is 2.1-3.9MPa, the LHSV is 0.6-1.0 / h, and the hydrogen-oil ratio is 950 Nm 3 / m 3 . After the reaction, the liquid product was collected in a sample bottle.

[0033] In a fixed-bed reactor, Pt / SAPO-41 was used as a catalyst to carry out hydroisomerization reaction on the hydrodeoxygenated liquid product, and the catalyst was reduced with hydrogen for 2 hours before use. The reaction temperature of the isomerization reaction is 340°C, the reaction pressure is 3.7MPa, the reaction volume space velocity is 2.2 / h, and the molar ratio of hydrogen to oil is 14.0:1. After the reaction, the corresponding liquid product was collected.

[0034] The hydroisomerized liquid product is distilled, and the fraction between 200-300°C is taken as the final product.

[00...

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Abstract

The invention discloses a preparation method of a castor-oil plant based biological aircraft fuel. According to the method, castor oil is selected as a raw material, an appropriate catalyst is prepared, and a hydrodeoxygenation reaction and a hydroisomerization reaction are carried out. The preparation method specifically comprises the following steps: hydrogen is blown into castor oil in the presence of a hydrodeoxygenation catalyst so as to generate n-alkanes; hydrogen is blown into n-alkanes in the presence of a hydroisomerization catalyst so as to isomerize to generate isoparaffin; and a fraction is subjected to fractionation so as to obtain the final product. The final product is the biological aircraft fuel which accords with usage requirements (such as American ASTMD7566 standard and the like). The obtained product castor-oil plant based biological aircraft fuel contains no alkene or napthene. By the adoption of the fuel, carbon formation of a motor is remarkably reduced. In addition, the fuel contains no sulfur compounds. When the fuel is in use, environmental pollution will not be caused. The castor-oil plant based biological aircraft fuel is an alternative for replacing a petrochemical aircraft fuel.

Description

technical field [0001] The invention relates to a preparation method of bio-aviation fuel using castor oil as a raw material, belonging to the technical field of bio-energy. Background technique [0002] With the continuous depletion of non-renewable mineral resources such as petroleum, in the long run, the shortage of liquid fuels will be a key problem that plagues human development. Actively looking for alternatives to traditional fossil fuels has become the focus of great attention from all walks of life around the world. [0003] Biofuels, as a brand-new renewable energy source, have attracted widespread attention in recent decades. Bio-ethanol produced from crops such as corn, and bio-diesel and bio-aviation kerosene produced from jatropha oil and palm oil in recent years have already begun to be tested on different means of transportation. In 2011, the world's total biofuel production reached 1.866 million barrels per day, accounting for 2.3% of the world's total ref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00
CPCY02P30/20
Inventor 叶锋王庆瑞张巳龙
Owner TIANJIN NANKAI UNIV CASTOR ENG SCI & TECH
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