Internal combustion circulating energy conversion system for supercritical oxidation

A technology of supercritical oxidation and cycle energy, which is applied in the direction of combustion equipment, solid fuel combustion, lighting and heating equipment, etc., and can solve the problems of collection and processing without further explanation

Inactive Publication Date: 2006-06-21
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "Black Liquor Supercritical Water Oxidation Device" disclosed in the Chinese Patent Application No. 200320109943.5 only provides a device design for the black liquor super

Method used

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  • Internal combustion circulating energy conversion system for supercritical oxidation

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0022] Example 1

[0023] First, water and pulverized coal are mixed in the fuel mixer (1) and pulverized into a slurry. The high-pressure metering pump (2) is used to boost the pressure and push the mixture into the preheater (3) for preheating, and then enter the supercritical reactor (4) Inside; oxygen is pressurized from the oxygen tank (7) through the gas booster pump (8), and also enters the supercritical reactor (4). Under supercritical conditions, that is, 25MPa and above 400°C, fuel and oxygen react to produce supercritical water, gas products and solid mixtures. Through gas-solid separation, the solids are discharged out of the system, and the gas enters the primary heat exchanger (6) for heat exchange. Realize water and CO in the first-stage gas-liquid separator (11) at 7 to 22 MPa and 30 to 350 ℃ 2 Wait for the separation of other gases, and discharge the condensate. The remaining gas is continuously cooled through the secondary heat exchanger (12), and CO is achieved ...

Example Embodiment

[0024] Example 2

[0025] The difference between this embodiment and Embodiment 1 is that the condensed water is discharged, organic wastewater is input as circulating water, the organic heat in the wastewater is recovered, and the wastewater is purified to solve the problem of wastewater pollution. The rest of the process is the same as in Example 1.

Example Embodiment

[0026] Example 3

[0027] The difference between this embodiment and the first embodiment is that the fuel is replaced with straw, and the rest of the process is the same as that of the first embodiment.

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PUM

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Abstract

This invention discloses one super threshold oxidation gas recycle energy conversion system in the energy and environment field, which comprises Fuel mixture device, high voltage meter pump, pre-heating device, super threshold reactor, back valve, one degree pre-heating device, oxidation tar, gas voltage strengthening pump, cooling water box, water pump, one degree gas and liquid isolator, two degree heat exchange device and two degree gas and liquid isolator. The system can recycle high concentrated CO2, SO2 with low smoke drainage without poisonous substance with wide utility fields of power, biology organic.

Description

1. Technical field [0001] The invention belongs to the field of energy conversion and environmental protection, and in particular relates to an energy conversion system for generating heat energy (steam) through fuel oxidation (combustion) in high-pressure and high-temperature water. 2. Background technology [0002] Supercritical water oxidation technology (abbreviated as SWAO) is a technology that can completely oxidize and decompose organic matter. Under supercritical conditions, without mechanical stirring, organic matter, air (or oxygen) and water are homogeneously mixed, and spontaneous oxidation begins without external heat supply. In a very short reaction residence time, organic matter can be rapidly oxidized into CO 2 and H 2 O. It can be used to eliminate and oxidize various toxic and harmful substances. [0003] Combustion in conventional boiler furnaces will produce a variety of harmful substances: such as NO from boiler combustion X The emission is generally...

Claims

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Application Information

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IPC IPC(8): F23B90/00
Inventor 马春元衣宝葵陈守燕高秀丽赖艳华董勇王文龙
Owner SHANDONG UNIV
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