Carbon dioxide-methane plasma high-temperature reforming device and high-temperature reforming method

Abstract

The invention discloses a carbon dioxide-methane plasma high-temperature reforming device and a high-temperature reforming method. The device comprises a plasma jet device and a cooling device. The method comprises the following steps: a mixed gas of methane and carbon dioxide in a volume ratio of 1: 4 is introduced into a plasma jet device for discharging, the power of a plasma torch is controlled to be 15KW, a methane-carbon dioxide plasma jet is generated and enters a reactor, reforming of methane-carbon dioxide plasma is achieved at the high temperature of 1200 DEG C, and meanwhile the plasma jet device is connected with a circulating cooling water system to protect refractory materials outside the reactor; and the synthesis gas generated by the reaction quickly enters a cooling pipe through a nozzle after being decompressed by a pressure port, and the synthesis gas is collected in the cooling pipe to detect the components of the synthesis gas. The reforming reaction does not need the participation of a catalyst, and the problems of sintering of a carrier and metal or solid-phase reaction of the catalyst under a high-temperature condition can be effectively avoided.

Description

technical field [0001] The invention relates to the technical field of carbon dioxide-methane reforming, in particular to a carbon dioxide-methane plasma high-temperature reforming device and a high-temperature reforming method. Background technique [0002] As the most abundant carbon source, carbon dioxide is widely distributed in the earth's atmosphere and crust. As the final product of the combustion of carbonaceous substances, it is also a fairly stable C1 resource, and the average bond energy of the CO=O bond is about 5.5eV, that is, 532kJ / mol. The main component of natural gas is methane. The chemical utilization of natural gas can be roughly divided into two ways: one is the direct conversion method, which is to directly convert natural gas into certain chemical products. The second is the indirect conversion method, the main way of which is to convert it into synthesis gas first, and then make other chemical products from the synthesis gas. Therefore, no matter f...

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Problems solved by technology

In recent years, on the one hand, people have done a lot of fruitful work on catalyst selection, catalyst and carbon deposition behavior, and catalytic reaction mechanism. However, although the catalytic activity is high, there are also shortcomings, such as sintering or Solid phase reaction occurs, leading to catalyst deactivation and shortened service life

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