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Method for preparing methanol fuel by utilizing biomass charcoal

A technology of biomass carbon and methanol fuel, which is applied in the fields of biofuel, hydroxyl compound preparation, organic compound preparation, etc., can solve the problems of high equipment requirements, difficult adjustment, complicated process, etc., and achieve the effect of high economy.

Active Publication Date: 2012-07-11
JILIN UNIV
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Problems solved by technology

Although the above patents have realized the production of methanol from biomass, there are varying degrees of direct use of biomass as raw materials for methanol production, and the product components obtained by gasification are complex, and it is difficult to adjust H 2 / CO ratio, high equipment requirements, complex process, not conducive to large-scale industrial production
[0005] Although coal has been used as a raw material for the production of methanol synthesis gas to achieve large-scale industrial production, coal is a fossil resource and faces the difficulty of resource shortage.

Method used

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  • Method for preparing methanol fuel by utilizing biomass charcoal

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Embodiment Construction

[0020] Below by example the present invention is given further description.

[0021] Biomass charcoal (one of pyrolytic charcoal, hydrothermal charcoal or colloidal charcoal or a mixture thereof) is reacted with water vapor at a temperature of 700°C to prepare crude synthesis gas H 2 and CO; raw syngas and water vapor are fed to a water gas shift catalyst containing 28% Cu-36% ZnO-36% Al 2 o 3 A fixed-bed reactor, reacting at a temperature of 200°C, allowing part of the CO to react with water vapor to form CO 2 and H 2 ; Then pass the mixed gas obtained after the reaction into Ca(OH) 2 Suspension removal of excess CO 2 , adjust the H in the feed gas 2 with CO and CO 2 The total equivalent ratio of M=H 2 / (CO+1.5CO 2 )=2.05, while by-product CaCO 3 .

[0022] The methanol synthesis reaction is carried out on a high-pressure fixed-bed reactor, and the reaction results are analyzed online by gas chromatography. Before synthesis reaction, methanol synthesis catalyst 60%...

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Abstract

The invention relates to a method for preparing methanol fuel by utilizing biomass charcoal. The method is characterized in that the biomass charcoal is used as a carbon source, steam is used as an activator, and synthesis gas (H2 / CO) is prepared through a decomposition reaction of the biomass charcoal and the steam; the proportion of hydrogen to carbon in the synthesis gas is regulated through using a water gas shift reaction and a calcium hydroxide slurry absorbing method; and the synthesis gas is catalytically converted to the methanol fuel by adopting a copper-zinc-aluminum oxide three-way catalyst. By adopting the method, the methanol fuel with a high additional value is prepared by utilizing the biomass charcoal, so that a green process route for sustainable development is provided.

Description

technical field [0001] The invention relates to a method for preparing methanol fuel from biomass charcoal. Background technique [0002] Energy is the foundation of national economic and social development. With the rapid development of the global economy, energy shortage has become an urgent problem that countries need to solve, and it has gradually become a bottleneck restricting my country's current and future development. The ecological environment pollution caused by the development and utilization of traditional energy increasingly serious. How to develop and utilize clean energy while improving the environment and reducing pollution has become one of the important issues that countries need to solve urgently. Therefore, it is of great scientific, economic and social significance to efficiently develop and utilize biomass energy, alleviate the pressure of energy demand, improve the ecological system environment, and at the same time ensure the development of regional ...

Claims

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Application Information

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IPC IPC(8): C07C31/04C07C29/154C01F11/18
CPCY02E50/18Y02E50/10
Inventor 王子忱杨晓敏王晓峰朱燕超丁雪峰
Owner JILIN UNIV
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