Preparation method for hydrogen-methane biofuel

A biohydrogen and fuel technology, which is applied in the direction of waste fuel, fuel, gas fuel, etc., can solve the problems of large investment, low gasification rate, and high energy consumption

Inactive Publication Date: 2018-05-01
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Coal gasification to produce methane technology has disadvantages such as low gasification rate, high energy consumption, large investment, high cost, and environmental pollution.
Hydrogen in hydrane fuel can be obtained through physical and chemical methods such as hydrogen production, but there are disadvantages such as high energy consumption and environmental pollution

Method used

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  • Preparation method for hydrogen-methane biofuel

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Embodiment

[0017] As shown in 1, the device includes a hydrogen-producing reactor, a methane-producing reactor, a biogas buffer tank, an on-line monitoring and control system and a hydrogen monitoring device; the hydrogen-producing reactor and the lower end of the methane-producing reactor are connected by pipelines with an inlet The upper end of the feed pump is connected to the biogas buffer tank, the first valve and the biogas pressurizing equipment in sequence through pipelines, and another pipeline with a second valve is arranged on the pipeline between the biogas buffer tank and the first valve. Connect the hydrogen alkane fuel gas distribution device, the hydrine fuel booster, and the CO 2 Removal device and hydrogen alkane fuel; among them, the first and second valves are connected with the hydrogen alkane fuel gas distribution device and the on-line monitoring and control system.

[0018] The hydrogen alkane fuel gas distribution device is connected with the on-line monitoring a...

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Abstract

The invention relates to a preparation method for a hydrogen-methane biofuel. The method employs two-step anaerobic fermentation technology to convert waste biomass into hydrogen and methane. According to the requirement for hydrogen concentration of a hydrogen-methane fuel, the flow direction of produced hydrogen in the first step is determined through feedback control: (1) hydrogen is directly mixed with biogas produced in a second step; or (2) a proper amount of hydrogen produced in the first step is further converted into methane in a biogas fermentation cylinder in virtue of hydrogen-consuming methane bacteria. Produced mixed gas is subjected to decarburization and purification so as to produce a hydrogen-methane biofuel product with stable quality and with hydrogen content of 5 to 25%. The preparation method provided by the invention has the advantages of environment friendliness, low cost and the like, can overcome the problem that biologically produced hydrogen is difficult toapple due to lack in infrastructures, provides technical support for production of hydrogen-methane biofuel products with stable quality, and can produce good economic, social and environmental benefits.

Description

technical field [0001] The invention relates to a method for preparing hydrogen alkane fuel by utilizing hydrogen and methane produced by biomass through anaerobic fermentation. Background technique [0002] Rising gasoline and diesel prices are driving a switch to non-gasoline fuels. At the same time, rising food prices are also forcing the first generation of biofuels to find new solutions. Although hydrogen is the best clean energy, its practical application is very limited. Used in fuel cells, there are disadvantages such as high price, professional maintenance, and short life. They are in the research and development stage and cannot be produced on a large scale. At present, the hydrogen fuel infrastructure is not perfect, which is mainly manifested in the small number of hydrogen refueling stations and the high construction and operation costs. Building a hydrogen fueling station would cost between $1 million and $2 million. Hydrotane fuels can solve this dilemma b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L3/00
CPCC10L3/00C10L2290/26Y02E50/30
Inventor 郭荣波杨智满戴萌许晓晖罗生军
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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