Reactor for preparing synthesis gas by reforming liquid fuel through plasma and application

Abstract

The invention discloses a reactor for preparing synthesis gas by reforming liquid fuel through plasma and application. A fuel and air mixture inlet communicated with the interior of a barrel is formed in the side wall surface of the barrel where a gap is formed between a high-voltage electrode and a lower sealing cover, and the axis of the fuel and air mixture inlet is tangent to the inner wall surface of the barrel. A first air inlet communicated with the interior of the barrel is formed in the side wall surface, close to an upper sealing cover, of the barrel between the high-voltage electrode and the upper sealing cover, and the axis of the first air inlet is tangent to the inner wall surface of the barrel. A second air inlet communicated with the interior of the barrel is formed in the upper middle part of the upper sealing cover. The reactor is additionally provided with a wall air inlet pipeline and a top air inlet pipeline, so that a three-way feeding mode of wall air, top air and air and fuel is realized, and the phenomenon of carbon deposition caused by the fact that the fuel is attached to the wall of the reactor is prevented. A high-voltage electrode expansion space is reserved by considering different thermal expansion coefficients of the high-voltage electrode and the insulating ceramic. A fixed screw rod is sleeved with a ceramic tube.

Description

technical field [0001] The invention belongs to the field of plasma chemistry, and relates to a reactor and a method for preparing synthesis gas by plasma reforming liquid fuels, in particular to a method for preparing synthesis gas by plasma reforming four liquid fuels of methanol, ethanol, gasoline and diesel. [0002] technical background [0003] Syngas (a mixture of hydrogen and carbon monoxide) plays a very important role in the chemical industry. Syngas can be produced by reforming hydrogen-containing fuels. Traditional catalytic reforming has the disadvantages of high investment, large equipment, high catalyst activity temperature, slow start-up, complicated process, and easy poisoning and deactivation of the catalyst. extensive attention. Plasma reforming is usually carried out under atmospheric pressure. The principle of the reaction is that high-energy electrons in the plasma collide with fuel molecules inelastically to ionize, excite or crack them, and finally ge...

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Problems solved by technology

However, the generation of plasma requires high voltage to be applied between the metal electrodes, and plasma reforming has the problem that electrode carbon deposits easily cause discharge instability, thereby reducing the reliability and service life of the reactor.

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