Combustion system for changing methanol into hydrogen fuel used in industrial furnace and thermal power plant.

Abstract

The present invention discloses a burning system using hydrogen fuel changed from methanol in industrial furnace and power station. The burning system is composed of a hydrogen making burning system, a heat transfer oil heating cycle system, a furnace remaining heat smoke heating system, an air preheating system, a start system and a bypass recycle system. The heat transfer oil is heated by furnace smoke remaining heat, and makes the methanol liquid fuel vaporize. The methanol is transferred to fuel with hydrogen as main component by the hydrogen making system, the fuel is then provided to furnace to burn. The burning process will not generate dust and sulfur dioxide harmful gas, and greatly reduces the discharge amount of the carbon dioxide gas. The fuel is satisfy with the national environmental protection standard requirement and can become new type substitute energy for the industrial furnace. The system has the advantages of safety, stable running, miniaturization of equipments and reduced manufacturing cost.

Description

technical field [0001] The invention relates to an industrial thermal combustion system, in particular to a combustion system for an industrial furnace or a thermal power station that converts methanol vaporization, catalysis, and pyrolysis into hydrogen fuel. Background technique [0002] At present, there are mainly two types of fuels used in industrial furnaces: one type uses diesel oil, heavy oil, natural gas and petroleum liquefied gas as fuel, and the existing problems are high combustion costs and strong dependence on depleted oil; the other type Coal is used as fuel, and the pollution hazards caused by coal burning are well known. Therefore, finding suitable alternative energy sources has always been the goal pursued by the industry. [0003] Hydrogen is an environmentally friendly clean energy, and methanol is considered to be the most economical, convenient and practical hydrogen storage body found so far. Methanol can be produced in large quantities through non-...

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Problems solved by technology

[0002] At present, there are two main types of fuels used in industrial furnaces: one type uses diesel oil, heavy oil, natural gas and petroleum liquefied gas as fuel, and the existing problems are high combustion costs and strong dependence on increasingly depleted oil; the other type Coal is used as fuel, and the pollution hazards caused by coal burning are well known

Its disadvantages: First, the alcohol-based synthetic fuel is directly heated by the waste heat at the tail of the flue gas. The flue gas may leak and come into contact with the fuel, which will have an adverse effect on the safety, controllability, and stability of the system operation; The volume of the waste heat heater is large, resulting in an increase in cost

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