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Furnace oxygen-enriched catalyzing combustion supporting method and device

A catalytic combustion and oxygen-enriching technology, which is applied in the direction of combustion methods, combustion using catalytic materials, indirect carbon dioxide emission reduction, etc., can solve equipment management, high maintenance costs, long construction period of oxygen equipment, high energy consumption of oxygen production, etc. , to achieve the effects of reducing excess air coefficient, changing combustion characteristics, and reducing activation energy

Pending Publication Date: 2020-05-08
上海穗杉实业股份有限公司
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Problems solved by technology

[0007] However, this method requires huge investment, long construction period of oxygen equipment, high equipment management and maintenance costs, and high-purity oxygen enrichment has certain safety hazards, especially the high energy consumption of oxygen production itself. To a certain extent, it restricts the popularization and application of this technical route

Method used

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  • Furnace oxygen-enriched catalyzing combustion supporting method and device
  • Furnace oxygen-enriched catalyzing combustion supporting method and device
  • Furnace oxygen-enriched catalyzing combustion supporting method and device

Examples

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Embodiment 1

[0065] A boiler that consumes about 267T of coal a day runs 360 days a year and works 24 hours a day. The calorific value of coal is 5024kcal / kg, the physical coal price is 700 yuan / T, the factory electricity fee is 0.67 yuan, the normal average load is 80%, and the natural production The steam is 72 tons, the standard coal consumption per unit of steam is about 111kg / T, and the hourly coal consumption is about 11.14T / h. When the plate-type membrane separator (produced by Shanghai Stuff Material Technology Co., Ltd., available on the market) uses membrane oxygen production as the oxygen source to perform partial oxygen-enriched combustion for the boiler, it will take about 6000m 3 / h, 30% oxygen-enriched, the power consumption is about 408KW, and the equipment investment is about 6 million yuan. The equipment maintenance and management costs are shown in the table below. It can achieve a coal-saving effect of about 6%, and it takes about 5 years to recover the investment. The...

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Abstract

The invention relates to the technical field of thermal power engineering and particularly relates to a furnace oxygen-enriched catalyzing combustion supporting method and device. According to the furnace oxygen-enriched catalyzing combustion supporting method and device, oxygen-enriched air and catalyzing combustion are combined; oxygen-enriched air with the purity being 21-60% is directly made from air through a normal temperature air separation method; a catalyst is dissolved, enters a water solution and is used for stimulating singlet oxygen; and air or the made oxygen-enriched air servesas a gas source to jet the catalyst solution and is fed into a furnace along with fuel to carry out oxygen-enriched catalyzing combustion. The device comprises an oxygen extracting device, a catalystdissolving, stirring and pressurizing device and an oxygen-enriched jetting and atomizing device. According to the furnace oxygen-enriched catalyzing combustion supporting method and device, the essence is to getting energy from oxygen instead of fuels such as coal, methane and oil; and besides, the requirements for the flow and purity on an oxygen source is greatly lowered, the investment of oxygen equipment and operation maintaining cost of the equipment are greatly reduced, especially the energy consumption of oxygen generating plants is reduced, and significant economic benefits are achieved.

Description

technical field [0001] The invention belongs to the technical field of thermal energy engineering, and in particular relates to an oxygen-enriched catalytic combustion-supporting method and device for furnaces and kilns. Background technique [0002] Oxygen-enriched, has been widely used in various fuel, gas, coal-fired furnaces (glass, cement, ceramics), various boilers, heating furnaces, incinerators, heat medium furnaces, hot blast stoves, smelting furnaces, aero engines, ship engines Combustion-supporting energy-saving and environmental protection; but so far, in most oxy-fuel combustion energy-saving transformation practices, most of them adopt the construction of an independent oxygen system to provide oxygen source for the kiln system (typically, membrane separation method, adsorption separation method , cryogenic air separation method, etc. to directly produce oxygen from the air), and send the produced oxygen source directly or through mixed air to form oxygen-enric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23L7/00F23C13/08
CPCF23L7/007F23C13/08F23L2900/00001Y02E20/34
Inventor 陈宗蓬顾修筑谢东红吴仁杰
Owner 上海穗杉实业股份有限公司
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