Industrial welding and cutting gas prepared by refining biogas

Abstract

The invention relates to an industrial welding and cutting gas prepared by refining biogas. The biogas is taken as a main fuel, and a multifunctional catalyst is added into the biogas in a volume ratio of 15:100,000 to form the industrial welding and cutting gas, wherein the multifunctional catalyst mainly comprises the following components in part by mass: 20 to 25 parts of No.200 solvent gasoline, 15 to 20 parts of hexahydrotoluene, 10 to 15 parts of butyl acetate, 8 to 10 parts of glycol dimethyl ether, 6 to 12 parts of methyl ethyl ketone, 5 to 18 parts of n-butyl cyclohexane, 5 to 15 parts of n-butyl acetate, 6 to 12 parts of p-tert-Butylphenol and 4 to 6 parts of organic boride. The multifunctional catalyst and the biogas are matched, so that the dissolubility and dispersity of various fuels are improved, the fuels well dissolve and adsorb the methane gas, the quality of the fuels is improved, the flame temperature of the methane combusted in oxygen is improved to reach the combustion temperature of acetylene gas, and the aim of replacing the acetylene gas is fulfilled.

Description

technical field [0001] The invention belongs to the technical field of gas fuel, and in particular relates to industrial welding and cutting gas refined from biogas. Background technique [0002] With the development of the economy and the improvement of people's living consumption level, the amount of domestic waste generated in cities is increasing day by day. At present, there are no engineering measures for the harmless treatment of garbage in the city. Basically, all the garbage is simply piled up without harmless treatment, and its hygienic requirements are far from meeting the hygiene standards of environmental regulations. [0003] These simple garbage dumps have caused a series of environmental pollution problems. It is manifested in: 1. Garbage is piled up in the open air, emitting bursts of stench, polluting the atmospheric environment, which can be smelled in several square kilometers around, seriously affecting the landscape. 2. There are no isolation measures...

AI Technical Summary

Problems solved by technology

At present, there are no engineering measures for harmless treatment of garbage in the city. Basically, all garbage is simply piled up and treated without harmless treatment. The hygienic requirements are far from the hygienic standards of environmental laws and regulations.

[0003] These simple garbage dumps have caused a series of environmental pollution problems

It is manifested in: 1. Garbage is piled up in the open air, emitting bursts of stench, polluting the air environment, which can be smelled in several square kilometers around, seriously affecting the landscape

2. There are no isolation measures for garbage, and the leachate produced by it pollutes groundwater and surrounding surface water, which greatly threatens the health of residents

3. Pollution of the surrounding soil, causing the soil to lose its proper function

The payback period of the biogas generated by waste degradation is generally 3-5 years. If a multifunctional catalyst is added to the biogas to improve the combustion environment and thermal efficiency of the biogas, it can completely replace acetylene for metal flame welding and cutting. Its economic value It is far greater than power generation and supply for civilian use. At present, the landfill gas refined industrial welding and cutting gas is blank in the application field of landfill gas recovery in my country. Therefore, the development of landfill gas refined industrial welding and cutting gas is of pioneering significance in my country.