On March 1st, the reporter learned from Henan Province Fertilizer Industry Company that the company's first use of the double-tower two-step one-step synthesis process technology was successfully completed in Hebei Qiu County Longgang Chemical Industry Co., Ltd. with an annual output of 10,000 tons of dimethyl ether industrial production Plants and production of refined dimethyl ether products, from the successful drive to the end of February, in less than a month, they have received dozens of companies that require transfer of technology and cooperation.
It is understood that China's early industrial production of dimethyl ether using methanol dehydration made of sulfuric acid. Due to the serious corrosion of this method, environmental pollution is gradually eliminated. Now the domestic production of dimethyl ether mainly uses methanol gas phase catalytic dehydration process, also known as two-step method. Although this kind of production process has little corrosion and no pollution, it must be obtained before the dimethyl ether can be obtained. Therefore, this method produces large amounts of dimethyl ether, high energy consumption, high cost, and the product price is directly affected by the methanol market. Poor anti-risk ability. The one-step process for the production of dimethyl ether is the synthesis of gases directly through the catalyst bed, and carbon monoxide and hydrogen are produced by a double-action catalytic reaction. Compared with the two-step method, the one-step method has obvious economic benefits. However, due to a shift reaction similar to that of a synthetic ammonia plant in the process reaction, carbon dioxide generation requires not only an increase in decarbonization equipment investment, but also an increase in raw material consumption and cost. Higher.
The two-tower two-step one-step synthesis process technology fully utilizes the utility of nitrogenous fertilizer enterprises and the reaction heat of methanol synthesis and the heat of dimethyl ether synthesis to achieve the dehydration reaction of dimethyl ether, and uses the dimethyl ether reaction heat to perform the distillation. The heating energy consumption problem of the two-step method is reduced, and the conversion reaction in the one-step method is also avoided, thereby realizing the high-quality, high-yield, and low-consumption production of dimethyl ether. Slightly modified equipment for small and medium-sized fertilizer companies can become the leading enterprise for the production of dimethyl ether.
According to reports, the use of this technology consumes only about 1.6 tons of crude methanol and 1.3 tons of steam per ton of dimethyl ether; the conversion rate is above 75%; the technology is simple, only three additional equipments need to be added; and the province is invested with an annual output of 10,000 tons. Ether investment within 3 million yuan; product quality can reach 99.9% of fine dimethyl ether quality standards.
It is understood that China's early industrial production of dimethyl ether using methanol dehydration made of sulfuric acid. Due to the serious corrosion of this method, environmental pollution is gradually eliminated. Now the domestic production of dimethyl ether mainly uses methanol gas phase catalytic dehydration process, also known as two-step method. Although this kind of production process has little corrosion and no pollution, it must be obtained before the dimethyl ether can be obtained. Therefore, this method produces large amounts of dimethyl ether, high energy consumption, high cost, and the product price is directly affected by the methanol market. Poor anti-risk ability. The one-step process for the production of dimethyl ether is the synthesis of gases directly through the catalyst bed, and carbon monoxide and hydrogen are produced by a double-action catalytic reaction. Compared with the two-step method, the one-step method has obvious economic benefits. However, due to a shift reaction similar to that of a synthetic ammonia plant in the process reaction, carbon dioxide generation requires not only an increase in decarbonization equipment investment, but also an increase in raw material consumption and cost. Higher.
The two-tower two-step one-step synthesis process technology fully utilizes the utility of nitrogenous fertilizer enterprises and the reaction heat of methanol synthesis and the heat of dimethyl ether synthesis to achieve the dehydration reaction of dimethyl ether, and uses the dimethyl ether reaction heat to perform the distillation. The heating energy consumption problem of the two-step method is reduced, and the conversion reaction in the one-step method is also avoided, thereby realizing the high-quality, high-yield, and low-consumption production of dimethyl ether. Slightly modified equipment for small and medium-sized fertilizer companies can become the leading enterprise for the production of dimethyl ether.
According to reports, the use of this technology consumes only about 1.6 tons of crude methanol and 1.3 tons of steam per ton of dimethyl ether; the conversion rate is above 75%; the technology is simple, only three additional equipments need to be added; and the province is invested with an annual output of 10,000 tons. Ether investment within 3 million yuan; product quality can reach 99.9% of fine dimethyl ether quality standards.
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