System and method for generating power by using biomass

Abstract

The invention discloses a system and method for generating power by using biomass. The system comprises a biogas preparation subsystem, a methane preparation subsystem, a hydrogen preparation subsystem and a hydrogen power generation subsystem, wherein the biogas preparation subsystem is used for fermenting organics in the biomass serving as a raw material with methane bacteria to generate biogas under the condition of air isolation; the methane preparation subsystem is used for extracting methane from the generated biogas and oxidizing the methane to generate methanol; the hydrogen preparation subsystem is used for preparing hydrogen in a way of mixing generated methanol and water or directly preparing hydrogen by using the generated methanol; and the hydrogen power generation subsystem is used for generating power by using the generated hydrogen. According to the system and the method for generating power by using the biomass, provided by the invention, the biogas is prepared from the biomass, the methane is extracted from the biogas, the methane is oxidized to prepare the methanol, the hydrogen is prepared from the methanol, and the hydrogen is used for generating power, thus the biomass is converted into electric energy and the energy conversion efficiency is increased.

Description

technical field [0001] The invention belongs to the technical field of power generation, and relates to a power generation system, in particular to a system for generating electricity by utilizing biomass; meanwhile, the invention also relates to a method for generating electricity by utilizing biomass. Background technique [0002] The energy crisis and ecological crisis have always plagued governments around the world, and they have also plagued the Chinese government. In particular, China is a large agricultural country, and the increase in production and income of hundreds of millions of farmers has also been entangled with governments at all levels. Although the exploration over the years has achieved results, there has been no major breakthrough. [0003] Applying the thinking and perspective of energy state science and engineering, through the analysis of the existing economic model of agricultural food production, combined with the characteristics of natural energy, ...

AI Technical Summary

Problems solved by technology

The problem is that the storage of these abundantly available natural energy sources has plagued humanity

Fourth, the fermentation raw materials should contain an appropriate amount of water. Generally, it is required that the fermentation raw materials in the biogas tank contain about 80% water. Too much or too little is not good for gas production.

[0010] People use biogas mainly to obtain energy by burning it, and the utilization rate of energy is low

In addition, the technology of using biogas to generate electricity does exist, but the existing power generation system uses biogas combustion to generate thermal energy, and the energy conversion efficiency is low, so it has not been widely used

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