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System and method for household garbage pyrolytic process CO2 recycling

A technology for domestic waste and recycling, which is applied in the system field of CO2 recycling in the domestic waste pyrolysis process to achieve the effects of improving environmental benefits, improving resource utilization efficiency and reducing corrosion.

Pending Publication Date: 2017-01-18
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In summary, at present, the existing technology does not reduce the CO produced in the domestic waste pyrolysis process 2 separated out and made into carbon material

Method used

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  • System and method for household garbage pyrolytic process CO2 recycling
  • System and method for household garbage pyrolytic process CO2 recycling
  • System and method for household garbage pyrolytic process CO2 recycling

Examples

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Effect test

Embodiment 1

[0069] This example proposes a system and method for processing waste electronic products, using domestic waste from a certain city as raw material, and its composition is shown in Table 1:

[0070] Table 1 Household garbage composition (wt%)

[0071]

[0072] The garbage entering the factory is simply sorted to remove large pieces of inorganic matter and metals, and then crushed. The particle size of the pyrolysis raw materials obtained by crushing is less than 20mm;

[0073] The broken garbage is evenly fed into the rotary bed pyrolysis furnace, and the thickness of the cloth is 100mm. The garbage in the furnace is dried, pyrolyzed and activated with the rotation of the bottom of the furnace to complete the reaction. The reaction temperature of zone and zone three is about 900°C, and the reaction time is 2h;

[0074] Table 2 shows the composition of the combustion exhaust gas of the rotating bed radiant tube and the combustion exhaust gas of the power generation unit.

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Abstract

The invention discloses a system and method for household garbage pyrolytic process CO2 recycling. The system comprises a pyrolysis unit, an energy-saving deacidification unit, a gas purification unit, a CO2 collecting unit and a CO2 conversion unit. The pyrolysis unit comprises a pyrolysis unit garbage inlet, a pyrolytic carbon outlet, a pyrolytic oil gas outlet and a pyrolysis unit combustion flue gas outlet. The energy-saving deacidification unit comprises a pyrolytic oil gas inlet, a high-concentration CO2 inlet, a post-deacidification oil gas outlet and a post-heat exchange CO2 outlet. The pyrolytic oil gas inlet is connected with the pyrolytic oil gas outlet. The gas purification unit comprises a post-deacidification oil gas inlet. The CO2 collecting unit comprises a pyrolysis unit combustion flue gas inlet and a high-concentration CO2 outlet. The high-concentration CO2 outlet is connected with the high-concentration CO2 inlet. The CO2 conversion unit comprises a post-heat exchange CO2 inlet, and the post-heat exchange CO2 inlet is connected with the post-heat exchange CO2 outlet. According to the system and method for household garbage pyrolytic process CO2 recycling, high-concentration CO2 is separated and used to prepare a carbon material, the economy of a household garbage treatment process is improved, and CO2 recycling is performed.

Description

technical field [0001] The invention belongs to the field of solid waste resource treatment, in particular to a domestic waste pyrolysis process CO 2 Systems and methods for resourcing. Background technique [0002] Our country is facing the dual pressure of environment and energy. With the acceleration of economic and urbanization, the national energy consumption is huge. At the same time, 2 / 3 of the big cities are facing the dilemma of garbage siege. Through technical means, domestic garbage can be turned into usable resources. To a certain extent, it can alleviate my country's energy and environmental crisis. Domestic waste pyrolysis technology is more and more favored by people because of its high resource utilization rate and low environmental pollution. The main products of pyrolysis are as follows: 1. Pyrolysis oil, a part of pyrolysis oil can be used as fuel oil after refining; 2. Pyrolysis gas, including some low molecular hydrocarbons such as hydrogen, methane, ca...

Claims

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Application Information

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IPC IPC(8): C10B53/00C10G1/00C01B32/05
CPCC10B53/00C01P2006/80C10G1/00C10G1/002C10G2300/1003
Inventor 任浩华张安强肖磊蔡先明刘璐周芳远赵月晶吴道洪
Owner SHENWU TECH GRP CO LTD
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