Introduction to the typical process for natural gas acetylene production

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Disadvantages of the partial oxidation method: 1) The partial oxidation method uses the partial combustion of methane as a heat source to crack methane; therefore, the temperature of the high-temperature environment generated is limited, and a large amount of natural gas is consumed per ton of product produced； 2) The partial oxidation method requires an air separation unit to supply oxygen; since oxygen is involved in the reaction, this makes the production process unsafe, necessitating the installation of complex explosion-proof equipment. The presence of oxygen also results in the presence of oxides in the pyrolysis gas, increasing the equipment costs for the separation and concentration stages ； 3) The composition of the cracking gas is relatively complex: C2H2 accounts for 8.54%, CO for 25.65%, CO2 for 3.32%, CH4 for 5.68%, and H2 for 55%. This causes problems in various aspects such as the consumption of resources and staffing for the separation and concentration process, thereby increasing operating costs. Arc method: Advantages: Acts rapidly on the reactants; the conversion of hydrocarbons into acetylene is significantly higher than that achieved by the partial oxidation method ； It achieved the recycling of raw materials, improved the utilization rate of those materials, and increased the acetylene yield ； Disadvantages: It is very sensitive to changes in operating conditions; improper operation can lead to the formation of large amounts of by-products. As a result, it is difficult to control the degree of methane cracking, and therefore, despite being industrialized, it has not been widely used.