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Method and apparatus for generating water vapour adapted to oxycombustion

A technology of oxy-combustion and steam, applied in the field of devices implementing the method, capable of solving problems not described or implied

Inactive Publication Date: 2007-07-18
TOTAL PUTEAUX FR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Accordingly, the prior art does not describe or suggest the present invention

Method used

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  • Method and apparatus for generating water vapour adapted to oxycombustion
  • Method and apparatus for generating water vapour adapted to oxycombustion
  • Method and apparatus for generating water vapour adapted to oxycombustion

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Embodiment Construction

[0043] Referring to Figure 1, this figure shows a conventional boiler 10 comprising a water preheater 11 in contact with cooled combustion gases, an evaporator 12 and a superheater 13, these components are in accordance with the proximity of the combustion The sequential arrangement of the flames in chamber 14. This results in maximized heat exchange, co-current or counter-current flow between liquids with minimal temperature differences. The temperature of the steam generated by the superheater exceeds 600°C.

[0044] Referring to Figure 2, this figure shows a boiler suitable for oxy-combustion according to the present invention. In this type of boiler, the cold liquid comes into contact with the hottest combustion products. The term "oxygen combustion" refers to combustion with air enriched with greater than 22% by volume oxygen as the oxidant. The heat flow radiated on the tube of the combustion chamber is 200-3000kW / m 2 Varies between, preferably 300-1000kW / m 2 .

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PUM

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Abstract

The invention concerns a boiler adapted to oxycombustion (30) comprising a combustion chamber (31), a water heater (33) and a vaporizer (38, 40), wherein the combustion chamber includes at least partly the water heater (33). The invention also concerns an oxycombustion method with hot water generation, comprising heating cold water with the oxycombustion flame into a heated fluid. The inventive method is advantageously implemented in the inventive device.

Description

technical field [0001] The subject of the invention relates to a method of generating steam suitable for oxycombustion, ie a method of generating steam suitable for the combustion of oxygen or oxygen-enriched air with fossil fuels as oxidant. The subject of the invention also relates to a device for carrying out the method. Background technique [0002] Combustion using oxygen, or oxy-combustion, is currently used to continue using fossil fuels while limiting the CO 2 One of the most noticeable ways it enters the atmosphere. In fact, the combustion of these fuels with air results in the formation of CO 2 , the CO 2 is highly diluted in the nitrogen of the combustion air, which forms a remarkable inertness (ballast): usually the CO 2 It only accounts for 10-15% of the combustion products. CO 2 The reinjection of is one of the techniques currently used to limit emissions into the atmosphere. For air combustion, in order to meet the separation or capture (capture) CO 2 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B1/00F22B31/00
CPCF22B31/00F22B1/003F22B1/00
Inventor 米歇尔·孔蒂里伊西多尔·雅库鲍伊兹
Owner TOTAL PUTEAUX FR