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A kind of non-catalytic oxidation system and method

A technology of catalytic oxidation and oxidation furnace, which is applied in chemical instruments and methods, inorganic chemistry, and chemical methods for reacting liquid and gaseous media, etc. It can solve problems such as damage to equipment, complex structure of oxidation furnace, and difficulty in organic wastewater treatment. , to achieve the effects of easing operating conditions, simple equipment structure, and preventing ash deposition

Active Publication Date: 2022-06-07
NINGBO JINYUANDONG PETROCHEM ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to provide a device and method for producing synthesis gas through non-catalytic oxidation, which overcomes the complex structure of the oxidation furnace in the prior art, the excessively high synthesis gas temperature at the outlet of the oxidation furnace and damage to equipment, and the utilization rate of heat energy in the synthesis gas. Low and difficult organic wastewater treatment and other issues

Method used

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  • A kind of non-catalytic oxidation system and method
  • A kind of non-catalytic oxidation system and method
  • A kind of non-catalytic oxidation system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0047] like figure 1 As shown, the non-catalytic oxidation system includes an oxidant preheater 10, an oxidation furnace 1, a heat recovery unit and a washing unit. The top of the oxidation furnace 1 is provided with a raw material inlet 20 for feeding hydrocarbon raw materials, an oxidant and a gasification agent, a gasification chamber 21 is provided on the upper part, a cooling unit is provided at the lower part of the middle part, a synthesis gas outlet is provided below the cooling unit, and a raw material inlet 20 is provided. There are hydrocarbon raw material burners, oxidant burners and gasification agent burners on it. The cooling unit includes a high-pressure atomizing injector 2 and a coil cooler 3, the high-pressure atomizing injector 2 is located above the coil cooler 3, and the organic waste water inlet is arranged on the high-pressure atomizing injector 2 or is respectively arranged on the high-pressure atomizing injector On the device 2 and at the raw materia...

Embodiment 2

[0058] like figure 2 As shown, when the chilling capacity of the organic waste water passed into the high-pressure atomizing ejector 2 is large enough, the number of heat exchange tubes in the coil cooler 3 can be reduced or the coil cooler 3 can be directly cancelled. At this time, the cooling unit is The single high-pressure atomizing injector 2, the connection relationship of other devices and the process flow of non-catalytic oxidation are the same as those in Example 1.

Embodiment 3

[0060] like image 3 As shown, when the organic waste water enters the oxidation furnace from the hydrocarbon raw material burner on the raw material inlet 20, the organic waste water, the hydrocarbon raw material, the gasification agent and the oxidant together generate synthesis gas I in the gasification furnace 21, and the cooling unit It is a separate coil cooler 3, and the connection relationship of other devices and the process flow of non-catalytic oxidation are the same as those in Example 1.

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Abstract

The invention provides a non-catalytic oxidation system and method, belonging to the field of synthesis gas preparation. The device includes an oxidation furnace, a heat recovery unit, a washing unit and an ash removal unit. The oxidation furnace body is equipped with a gasification chamber and a cooling unit. The oxidation furnace is equipped with a raw material inlet, a synthesis gas outlet and an organic wastewater inlet. The organic wastewater inlet can be Set at the raw material inlet or on the cooling unit. Hydrocarbon raw materials, oxidants and gasification agents generate high-temperature syngas in the gasification chamber. The syngas is first cooled by the cooling unit, then recovered by the heat recovery unit, and finally sent to the washing unit for washing. The use of this device not only solves the problem of organic wastewater treatment, but also converts the organic impurities in the organic wastewater into effective synthesis gas, helping to reduce the temperature of the synthesis gas exiting the oxidation furnace. The obtained synthesis gas can be directly passed into the superheated steam preheater And then into the waste heat boiler, not only to obtain higher temperature superheated steam, but also prolong the service life of the waste heat boiler.

Description

technical field [0001] The invention relates to the preparation field of synthesis gas, in particular to a non-catalytic oxidation system and method. Background technique [0002] Syngas production by non-catalytic oxidation refers to the process of partial oxidation reaction of gaseous or liquid hydrocarbons with pure oxygen or oxygen-enriched air at high temperature in an oxidation furnace to generate syngas, and the reaction does not require a catalyst. The raw materials used in this reaction come from a wide range of sources. Natural gas, coke oven gas, refinery gas, light oil, heavy oil, and residual oil can be used as synthesis gas raw materials. During the reaction process, phenols, benzene, naphthalene, etc. in the raw materials can be polluted. It is decomposed into syngas, and the refractory organic sulfur is reduced to the tractable hydrogen sulfide. The reaction can be divided into two stages: the first stage is mainly the combustion of hydrocarbons and oxygen t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/34C01B3/52C02F1/72B01J10/00B01J19/00C02F101/30
CPCC01B3/34C01B3/52C02F1/72B01J10/00B01J19/0013C02F2101/30C02F2303/10B01J2219/00058Y02P20/129
Inventor 郭利鑫俎宇栾忠升
Owner NINGBO JINYUANDONG PETROCHEM ENG TECH