Sludge pyrolysis method adopting biomass adding

A biomass and sludge technology, applied in the field of sludge pyrolysis with biomass addition, can solve the problems of unproduct utilization and so on

Inactive Publication Date: 2017-02-22
XINJIANG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides a sludge pyrolysis method with added biomass, which overcomes the deficiencies of the above-mentioned prior art, and can effectively

Method used

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  • Sludge pyrolysis method adopting biomass adding
  • Sludge pyrolysis method adopting biomass adding

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Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1, the sludge pyrolysis method of adding biomass is carried out according to the following steps: in the first step, the biomass is first pulverized into powder, and then the biomass, sludge and catalyst are mixed according to the ratio of 0.25 to 4:1:0.02 to The mass ratio of 0.08 is mixed evenly to obtain a mixture; the second step is to place the mixture in a reaction kettle, pass nitrogen gas as a protective gas, and heat up to a pyrolysis temperature of 300°C to 700°C according to a certain heating program for pyrolysis. The time is 30min to 180min. After pyrolysis, solid phase products, liquid phase products and gas phase products are obtained respectively. The liquid phase products enter the liquid phase product collector, and the gas phase products are collected in the air bag; the third step is to obtain the After the solid phase product, stop heating and continue to pass nitrogen into the reactor to cool to room temperature, grind the solid phase pro...

Embodiment 2

[0016] Embodiment 2, the sludge pyrolysis method of adding biomass is carried out according to the following steps: in the first step, the biomass is first pulverized into powder, and then the biomass, sludge and catalyst are mixed in a ratio of 0.25 or 4:1:0.02 or The mass ratio of 0.08 is mixed evenly to obtain a mixture; the second step is to place the mixture in a reaction kettle, pass nitrogen gas as a protective gas, and heat up to a pyrolysis temperature of 300°C or 700°C according to a certain heating program for pyrolysis. The time is 30min or 180min. After pyrolysis, solid phase products, liquid phase products and gas phase products are obtained respectively. The liquid phase products enter the liquid phase product collector, and the gas phase products are collected in the air bag; the third step is to obtain the After the solid phase product, stop heating and continue to pass nitrogen into the reactor to cool to room temperature, grind the solid phase product finely ...

Embodiment 3

[0017] Embodiment 3, as an optimization of the above embodiments, the biomass is more than one of peanut shells, sawdust, corn stalks, corn cobs and rice straw.

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Abstract

The invention relates to the technical field of sludge pyrolysis, in particular to a sludge pyrolysis method adopting biomass adding. The method comprises steps as follows: step one, firstly, biomass is crushed into powder, the biomass, sludge and a catalyst are uniformly mixed in a mass ratio being (0.25-4):1:(0.02-0.08), and a mixture is obtained; step two, the mixture is put in a reaction kettle, nitrogen is introduced to serve as protective gas, the temperature is increased to the pyrolysis temperature of 300-700 DEG C according to a certain temperature increasing procedure, and a solid-phase product, a liquid-phase product and a gas-phase product are obtained respectively. The sludge pyrolysis method adopting biomass adding not only promotes sludge pyrolysis, but also increases the product utilization value, the problem of environment pollution in the conventional sludge treatment process is solved, the reduction, stabilization, harmless and recycling targets of sludge are achieved, agricultural waste biomass is recycled, and the purpose of turning waste into wealth is achieved.

Description

technical field [0001] The invention relates to the technical field of sludge pyrolysis, and relates to a sludge pyrolysis method adding biomass. Background technique [0002] With the acceleration of urbanization, the output of urban sewage sludge (abbreviated as sludge) continues to increase, but the current situation of sludge treatment in my country is very severe, mainly landfill, composting and incineration, in most cases only achieved Sludge transfer, but failed to achieve harmless pollution and resource utilization. Sludge pyrolysis is a chemical reaction process carried out in a sealed, oxygen-free, non-combustible, high-temperature state. By heating the sludge at high temperature, Convert the organic matter in the sludge into water vapor, non-condensable gas and charcoal. The sludge contains more ash and less volatile matter. When pyrolyzed alone, it often has incomplete pyrolysis, volatile matter is not easy to separate out and product application performance Biomas...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B53/00C10C5/00C02F11/10
CPCC02F11/10C10B53/00C10B53/02C10C5/00Y02E50/10Y02W10/40
Inventor 陆江银王忠科李刚李娜
Owner XINJIANG UNIVERSITY
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