Method for preparing synthetic gas from C1 chemical fuel in multivariate conjugation manner

Abstract

The invention discloses a method for preparing synthetic gas from C1 chemical fuel in a multivariate conjugation manner. The method comprises the following steps: 1, baking in an oven; 2, introducingC1 gas-state fuel and C1 solid-state fuel slurry into a gasification furnace respectively to be mixed with an oxidant, and reacting to generate crude synthetic gas, wherein a reaction cavity is of a flat and long gourd shape, a relation between the diameter d of a fine neck part of the reaction cavity and the diameter D of the thickest part of a web part is as follows: d=0.382D, and the ratio of axial heights of upper and lower sections of chambers of the reaction cavity taking the fine neck part as the boundary is 1 to 3; and 3, quenching the crude synthetic gas and unreacted solid residues,and discharging the crude synthetic gas with overheated gas. According to the method disclosed by the invention, the reaction cavity of the gasification furnace and a spraying nozzle are designed andan actual reaction space of the reaction cavity of the gasification furnace is matched with a flow field for reaction of raw materials, so that C1 raw materials are mixed in the reaction cavity in a high-strength manner and are in sufficient contact; the mass transfer effect is improved, and the high-concentration crude synthetic gas taking CO and H2 as main raw materials is obtained; and the utilization efficiency of a C1 fuel resource is improved.

Description

technical field [0001] The invention belongs to the technical field of energy and chemical production, and in particular relates to a method for producing synthesis gas by reacting carbon-chemical fuels in a multiple-conjugation manner. Background technique [0002] The carbon-chemical industry is a chemical process that studies the synthesis of industrial products from substances containing one carbon atom. The substances with one carbon atom mainly include CO, CO 2 、CH 4 、CH 3 OH, HCHO, carbon-chemical fuel is a set of raw materials containing one carbon atom collected for the carbon-chemical industry. Gas-liquid-solid raw materials for producing synthesis gas. Because of its abundant reserves, wide distribution, and easy acquisition and transportation, coal will always be the leading role in the selection of raw materials in the field of energy and chemical production technology. As a non-renewable fossil energy, the solid utilization of coal resources is an innovatio...

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Problems solved by technology

As the three major non-renewable fossil energy sources, kerosene and gas play an important role in safeguarding the national economy, national defense industry and national defense security. Oil and gas resources flow in the body of the national economy like blood due to their excellent physical and chemical properties. The characteristics of the first operation have led to rapid and high consumption of oil and gas resources and even serious shortages, which directly affect the healthy operation of the national economy. Therefore, in recent years, industry personnel have put forward two innovative scientific propositions of coal-to-gas and coal-to-oil Putting it into industrialized operation has greatly alleviated the contradiction between energy supply and demand caused by the shortage of oil and gas resources. However, due to the complex structure and different physical and chemical properties of coal resources, the mass transfer effect of useful components in the process of coal-to-gas-to-oil conversion is not good, resulting in The waste of coal resources is serious. In response to this secondary problem caused by it, scientific researchers have devoted themselves to research, put forward new ideas one after another, and developed targeted new technologies one after another, in order to solve the technical problem of maximizing and effectively utilizing coal resources.

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