Acetylene can be used for lighting, welding and cutting metal (oxyalkyne flame), and is also the basic raw material for the manufacture of acetaldehyde, acetic acid, benzene, synthetic rubber, synthetic fiber, etc.
Propane is a by-product of processing natural gas or refined crude oil. In the process of processing natural gas, butane, propane and a large amount of ethane must be removed from the raw gas, otherwise these volatiles will condense in the natural gas pipeline. The process of refining crude oil. Propane appears as a by-product in the production of gasoline and fuel oil by cracking petroleum. Because it is a by-product, propane production cannot be easily changed according to demand.
Carbon monoxide is produced in many industrial processes, such as ammonia synthesis feed gas, yellow phosphorus production tail gas, and blast furnace gas and converter gas in the iron and steel industry. In terms of carbon monoxide resources, the amount of steel plant gas is huge. Where the purity of carbon monoxide is high and the demand is not particularly large, a carbon monoxide production device is often built, or by-product gas with lower processing costs is used. Commonly used methods are coke oxygen method, carbon dioxide and charcoal reduction method, carbon dioxide is passed into the charcoal layer of the electric furnace to be reduced to carbon monoxide, and ammonia copper washing regeneration method.
Heating ammonium nitrate can generate nitrous oxide and water, and the thermal decomposition of ammonium nitrate in industry can produce 95% pure nitrous oxide, and one laughing gas molecule is combined with six water molecules. When a large amount of laughing gas is dissolved in the water, and then the water is cooled, there will be laughing gas crystals. When the crystals are heated, the laughing gas will escape, and people use the property of laughing gas to make high-purity laughing gas.
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