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Biomass gasification power-generation process

A technology of biomass and biomass particles, which is applied in the direction of gasification process, gasification device feeding tool, granular/powdered fuel gasification, etc. It can solve the problems of long process flow, high investment cost, and high tar content, and achieve High gasification efficiency, high gasification intensity, and low tar content

Inactive Publication Date: 2016-12-21
武汉高斯生态能源技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional biomass gasification power generation technology has a long technological process, and requires the construction of supporting power generation systems, a complete set of fuel delivery systems, boilers, steam turbines, generators and their auxiliary systems, power grid output systems, etc., the investment cost is high, and there are high tar content, Blockage of equipment and pipelines

Method used

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Embodiment Construction

[0036] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0037] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, or operate in a particular orientation, and thus should not be construed as limiting the invention.

[0038] like Figure 1 to Figure 4 As shown, the present inventi...

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Abstract

The invention discloses a biomass gasification power-generation process. The biomass gasification power-generation process comprises the following steps of step (I), pressurizing biomass granules until the gauge pressure is 0.1-4.0Mpa, then discharging materials to a charging tank, then conveying the discharged materials to a fluidized-bed gasifier, and performing a gasification reaction with a gasification agent so as to obtain fuel gas for standby application; step II, performing cyclone dust removal on the fuel gas prepared in step (I) through a cyclone separator, performing separation to obtain large particles which are not burn-out, and returning the large particles to the fluidized-bed gasifier for gasifying once again; and step (III), cooling the flue gas which is subjected to dust removal by the cyclone separator to 300-700 DEG C through a heat exchanger, and enabling the cooled flue gas to be led into a coal boiler to be subjected to mixed combustion with the coal for power generation. According to the biomass gasification power-generation process disclosed by the invention, the biomass granules are sent to a large-scale coal boiler through the fuel gas generated by gasification to be subjected to combined combustion with the coal for power generation, so that the coal consumption required for power generation is reduced, the amount of CO2 generated during combustion is reduced, greenhouse effects caused by CO2 can be alleviated, and emission of NOX by power plants is reduced.

Description

technical field [0001] The invention relates to a power generation process. More specifically, the present invention relates to a biomass gasification power generation process. Background technique [0002] The use of biomass energy to generate electricity is an important way of biomass utilization, and it is also a way of biomass utilization vigorously advocated and encouraged by the state in recent years. Biomass power generation technology is mainly divided into biomass direct combustion power generation, biomass mixed combustion power generation, and biomass gasification power generation. [0003] The basic principle of biomass direct combustion power generation is that biomass is directly burned in a biomass boiler to generate steam, and the generated steam is used to drive a turbine generator system to generate electricity, which is very similar in principle to coal-fired boiler thermal power generation. Usually, the composition of direct combustion power generation ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/54C10J3/56C10J3/84F01D15/10
CPCY02E20/18C10J3/54C10J3/56C10J3/84C10J2200/15C10J2300/0916C10J2300/0956C10J2300/0959C10J2300/0976C10J2300/1603C10J2300/1671F01D15/10
Inventor 张伟
Owner 武汉高斯生态能源技术有限公司
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