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Preparation method and system of low-carbon biological aviation fuel based on full life cycle

A full-life cycle, aviation fuel technology, applied in biochemical equipment and methods, biofuels, bio-raw materials, etc., to achieve the effects of avoiding fertilizers, less energy consumption, and high oil yield

Pending Publication Date: 2017-12-29
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The guarantee of these properties limits the group composition and carbon number distribution of aviation kerosene to a certain extent.

Method used

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  • Preparation method and system of low-carbon biological aviation fuel based on full life cycle

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Experimental program
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Effect test

Embodiment 1

[0110] (1) Screening of microalgae: the selected oil content is 20-44%, and the growth rate is 20-30g / m 2 d, Nannochloropsis with carbon spectrum C14, C16, C18;

[0111] (2) Coal-fired power plant CO 2 Purify or pass directly into the microalgae culture pool, adjust CO by controlling pH 2 Influx, the pH is controlled between 5.5-7.8; Nannochloropsis achieves in-situ harvesting by controlling the pH value, and the pH value of in-situ harvesting is between 4.0-4.8 under acidic conditions, and the pH value of in-situ harvesting is also Under the alkaline condition of 9.5-10.5, the in-situ harvesting concentration can reach 20-30g / L, and the concentration after centrifugal dehydration is 150-250g / L. The water recovered by the harvesting and dehydration process is returned to the cultivation pool after filtration and disinfection;

[0112] (3) The microalgae slurry is sent into the hydrothermal reaction kettle heated to the set temperature through a high-pressure pump. The temper...

Embodiment 2

[0117] (1) Screening of microalgae: the selected oil content is 30-65%, and the growth rate is 20-30g / m 2 d, carbon spectrum C14, C16, C18 multicellular yellow hair algae;

[0118] (2) Coal chemical plant CO 2 After purification, it is directly passed into the culture pool of the yellow hair algae, and the CO is adjusted by controlling the pH. 2 Influx, pH is controlled between 5.5-7.8; multicellular Xanthophyllum can be harvested directly without dehydration process due to its large size. Use nylon sieves with specifications of 200-400 mesh for rapid filtration, squeeze and dehydrate The concentration is 350g / L, and the water recovered by the harvesting and dehydration process is returned to the cultivation pool after filtration and disinfection;

[0119] (3) The microalgae slurry is sent into the hydrothermal reaction kettle heated to the set temperature through a high-pressure pump. The temperature of the reaction kettle is controlled at 270-300°C, and nitrogen is regular...

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Abstract

The invention provides a preparation method of a low-carbon biological aviation fuel based on full life cycle. The preparation method includes the steps: S1 screening micro-algae coupled with carbon spectrum characteristics of the aviation fuel; S2 cultivating the micro-algae to obtain oil-producing micro-algae with an efficient carbon dioxide fixation function and high fatty acid yield; S3 extracting grease from the oil-producing micro-algae by a hydrothermal method to obtain raw oil containing the grease; S4 sequentially performing impurity removal and hydrorefining treatment on the raw oil to obtain a hydrogenated product; S5 fractionating the hydrogenated product to obtain a kerosene component and a gasoline component, wherein the gasoline component is the biological aviation fuel. The prepared biological aviation fuel can be applied to six types of engines-aircrafts, and full life cycle greenhouse gas emission reduction proportion can reach 50-80% by the aid of the biological aviation fuel.

Description

technical field [0001] The invention relates to a method and system for preparing low-carbon bio-aviation fuel based on a full life cycle, in particular to a low-carbon method and system that utilizes a full life cycle method from raw material acquisition, fuel preparation to application, and belongs to the aviation industry. fuel field. Background technique [0002] The research and development of aviation alternative fuels undertakes the dual mission of national energy security and carbon emission reduction. The development of alternative fuels suitable for aviation is an important guarantee for realizing diversified aviation energy supply and ensuring national defense energy security. According to the carbon emission requirements formulated by the International Civil Aviation Organization and the corresponding carbon emission reduction goals of China's civil aviation, the development of engines and aircraft technologies such as light weight and performance improvement ca...

Claims

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Application Information

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IPC IPC(8): C11C1/00C11C1/08C11C3/12C11C3/14
CPCC10L1/02C11C1/002C11C1/08C11C3/12C11C3/123C11C3/14C10G3/42C10G3/45C10G3/46C10G45/08C10G45/10C10G67/02C10G2400/08C12M43/02Y02E50/10Y02T50/678Y02P30/00Y02P30/20B01J19/245B01J2219/0004C10G2300/1014C10G2300/202C10L1/08C10L2200/043C10L2200/0484C10L2270/04C12M21/02C12M21/12C12M23/44
Inventor 杨晓奕刘子钰
Owner BEIHANG UNIV
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