Method for preparing fuel gas by utilizing municipal waste

A technology for municipal waste and gas, applied in the manufacture of combustible gas, petroleum industry, etc., can solve the problems of low gas production rate, high gasification temperature and high tar content, and achieve the effect of high gas production rate and low gasification temperature

Active Publication Date: 2013-11-06
杭州并联世纪科技有限公司
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  • Description
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  • Application Information

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Problems solved by technology

[0006] At present, waste gasification technology is still in the stage of exploration and development, and most of the gasification technologies that have been developed and applied are complicated in equipment and high in cost
At the same time, the gasification technology also has problems such as high tar content in the product gas, low calorific value of the gas, high gasification temperature, and low gas production rate. Among them, the tar content is an important problem to be solved in the current research on municipal solid waste pyrolysis gasification technology. Difficult question

Method used

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  • Method for preparing fuel gas by utilizing municipal waste
  • Method for preparing fuel gas by utilizing municipal waste
  • Method for preparing fuel gas by utilizing municipal waste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Preparation and characterization of embodiment 1 catalyst

[0050] The surface characteristics of the catalyst were analyzed using ASAP2010 specific surface and pore size analyzer (Micrometrics).

[0051] Weigh 68g tetrabutyl titanate solution, add 377mL absolute ethanol and 26.75g nitric acid, stir to obtain solution A; 0.404gFe(NO 3 ) 3 9H 2 O,2.619g Ni(NO 3 ) 2 ·6H 2 O was dissolved in 215mL deionized water to obtain solution B. Add solution B dropwise to solution A, stir for 2h, let stand for 20h, and dry at 120°C. Raise the temperature to 500°C at a rate of 3°C / min, and roast for 3h. Preparation Fe-NiO / TiO 2 , the prepared Fe-Ni / TiO 2 The comparative area is 63.0m 2 / g, take the prepared Fe-NiO / TiO 2 Put 10g of catalyst in a fluidized bed reactor, adjust the flow rate of nitrogen gas to 5L / min to fluidize the catalyst. Raise the temperature to 500°C, and after the temperature in the reactor is stabilized, feed acetylene gas into the reactor at a flow rate ...

Embodiment 2

[0056] The processing of embodiment 2 municipal refuse

[0057] The rubbish that waste paper, plastic rubber, fabric, wood and bamboo are mixed is pulverized into 5mm, is placed in the rotary feeder 6 and sealed, and the catalyst prepared in Example 1 is added in the fixed-bed pyrolysis gasifier 8, and the The electric furnace is energized, and the temperature is raised to preheat the fixed-bed pyrolysis-gasifier. When the temperature of the fixed-bed pyrolysis-gasifier reaches 700°C, the waste material is sent into the fixed-bed pyrolysis-gasifier 8 at a rate of 0.8kg / h, and the Water vapor is fed into the fixed bed pyrolysis gasification furnace 8 at a rate of 0.8kg / h for pyrolysis gasification reaction. The reaction time is 20 minutes, and the gasification products obtained after the reaction are exported from the fixed bed pyrolysis gasification furnace After the cyclone separator 13 removes the carried particulate matter, it is then cooled by the condensing device 14, and...

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Abstract

The invention provides a fuel gas generation device. The fuel gas generation device comprises a vapor generator, a rotary feeder, a fixed bed pyrolysis gasifier, a heating electric furnace, a cyclone separator and a condensing device; the vapor generator is connected with the inlet of the fixed bed pyrolysis gasifier; the rotary feeder is connected with the inlet of the fixed bed pyrolysis gasifier; the fixed bed pyrolysis gasifier wraps the heating electric furnace; the cyclone separator is connected with the outlet of the fixed bed pyrolysis gasifier; the condensing device is connected with the cyclone separator. According to the fuel gas generation device, a large amount of tar which is generated from gasification of municipal solid waste is avoided, the gasification temperature is low, and the gas production rate is high.

Description

technical field [0001] The invention relates to the technical field of gas preparation, in particular to a method for preparing gas by using municipal garbage. Background technique [0002] Municipal solid waste, also known as urban solid waste, refers to the solid waste generated in urban daily life or activities that provide services for urban daily life, and its main components include kitchen waste, waste paper, waste plastic, waste fabric, waste Timber etc. With the rapid development of my country's economy and the increasing degree of urbanization, the problem of urban domestic waste has become increasingly prominent and has attracted more and more attention. Domestic surveys show that at present, the per capita annual domestic waste in my country's cities is 440kg, and it is increasing at a rate of 8% to 10% per year, and the annual output has reached 1.42×108t. Statistics show that 2 / 3 of China's current 668 cities are surrounded by garbage, which seriously damages...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/20C10J3/18C10J3/84
Inventor 郭巍
Owner 杭州并联世纪科技有限公司
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