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Process and device for performing gasification energy conversion on biomass recycled from construction wastes

A technology for construction waste and biomass, applied in the field of biomass, can solve the problems of inability to use interchangeably, affect combustion, toxic substances, etc., and achieve the effects of low cost, elimination of leakage, and reduction of investment.

Active Publication Date: 2015-05-06
北京国佳新创科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] However, as mentioned above, in the above-mentioned prior art, the gasification of conventional biomass (such as straw) or domestic waste is mainly aimed at, and there is a lack of gasification technology for construction waste biomass with large composition differences. and installation
The various waste biomass in construction waste recycling is characterized by complex components, and usually some of them have certain pollution or even toxic substances. The difference between biomass is that it contains a considerable amount of slag, cement blocks and other waste building materials, which not only pollutes a lot, but also affects combustion.
Therefore, the gasification conversion of them is very different from the conventional biomass gasification to prepare clean gas (such as straw to make clean gas) in terms of process and equipment, and the two cannot be used interchangeably.

Method used

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  • Process and device for performing gasification energy conversion on biomass recycled from construction wastes

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Embodiment 1

[0041] The present invention will be further described below in conjunction with the accompanying drawings.

[0042] A kind of construction waste recycling combustible biomass gasification device of the present invention comprises cracking furnace 1, primary purifier 2, secondary purifier 3, primary separator 4, secondary separator 5, Roots blower 6 and theirs Connecting pipelines, the outer wall of the cracking furnace is provided with a spiral flue, the flue is connected with the input end of the thermostat arranged on the cracking furnace 1, and the output end of the thermostat is connected with the primary purifier 2, The front end of the secondary purifier 3 is connected to the primary purifier 2, and the rear end is connected with the primary separator 2. The secondary purifier 3 is provided with a cyclone separator, and the cyclone separator is connected with the secondary purifier 3. The steam outlets are connected; the Roots blower is connected with the secondary sepa...

Embodiment 2

[0045] Use the device of embodiment 1 to carry out the gasification of the biomass recovered from construction waste, wherein the biomass recovered from construction waste is cracked and gasified in a cracking furnace, followed by primary purification and secondary purification, and then a secondary purification Stage separation and secondary separation. After secondary separation, exhaust gas is led out by fan. The construction waste is waste from building demolition, and its biomass includes wood products, plastics, textiles and the like. The catalyst used in the cracking process includes a carrier and active components loaded on the carrier, wherein the carrier is fly ash, and the catalytically active components are NiO, CuO, Fe 2 o 3A composite oxide of three oxides, the catalyst is expressed as NiO-CuO-Fe 2 o 3 / fly ash, wherein the molar ratio of Ni, Cu, Fe is 5:1:15, based on the total weight of the catalyst, NiO-CuO-Fe 2 o 3 The content of the composite oxide was...

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Abstract

The invention discloses equipment and a process for performing gasification energy conversion on biomass recycled from construction wastes. The equipment comprises a cracking furnace, a primary purifier, a secondary purifier, a primary separator, a secondary separator, a Roots blower and connecting pipelines thereof. The process comprises the following steps: performing cracking gasification on the biomass recycled from construction wastes in the cracking furnace, performing primary purification and secondary purification, performing primary separation and secondary separation, and leading out the tail gas by using the Roots blower after the secondary separation. The process and equipment disclosed by the invention have high pertinence on the biomass in the construction wastes and are safe, reliable and low in investment, and two kinds of clean energy including gas and charcoal can be simultaneously produced.

Description

technical field [0001] The invention relates to a process and a device for converting biomass from construction waste, in particular to gasification and energy conversion of biomass recovered from construction waste. technical background [0002] In recent years, with the continuous increase of city scale and the continuous deepening of urbanization construction, the amount of waste generated is increasing day by day. However, many insurmountable problems exposed by traditional treatment methods have made waste pyrolysis treatment technology more and more popular. People are concerned, especially for municipal solid waste with high content such as kitchen waste, plastic, rubber, etc., the more valuable its pyrolysis and gasification process can be. Due to the various components of municipal solid waste, the pyrolysis and gasification process is quite complicated. In the process of pyrolysis and gasification, not only large molecules are cracked into small molecules, but also...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/00C10B53/02C10B53/07C10B57/06C10K1/02C10K1/00C10K1/08B09B3/00
CPCC10J3/60C10J3/84C10J2300/0946C10J2300/0986C10J2300/1603Y02E50/10Y02P20/143Y02W30/58
Inventor 张颖王以峰刘喜进孟德义吴建民葛海卿
Owner 北京国佳新创科技发展有限公司
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