由气体合成直接合成二甲醚"该方法通过水煤气变换、甲醇合成和甲醇脱水直接

Direct synthesis of dimethyl ether from gas synthesis "This method directly synthesizes dimethyl ether through water gas shift, methanol synthesis and methanol dehydration. By identifying by-products of high-pressure methanol production, the first production method of dimethyl ether was prepared. Under wide application, adverse reactions are greatly reduced. The industrial production technology of dimethyl ether is developing rapidly, and it is used for methanol dehydration or direct synthesis gas. Methanol dehydration methods include liquid-phase methanol method and gas-phase methanol method. The former reaction is carried out in liquid phase, methanol It is prepared by dehydration of concentrated sulfuric acid. However, due to the problems of small scale of equipment, corrosion of equipment, environmental pollution, and harsh operating conditions, this method has gradually been eliminated. In recent years, the demand for dimethyl ether has increased significantly. Countries have successively developed low investment , A new process with good operating conditions and no pollution, mainly including a one-step process and a two-step process

The method is synthesized directly by gas synthesis of dimethyl ether through water gas transformation, methanol synthesis and methanol dehydration directly synthesize dimethyl ether. By identifying the production by-products of high-pressure methanol, the production method of dimethyl ether was prepared for the first time. Under the wide application of low-pressure methanol synthesis technology, adverse reactions were greatly reduced. The industrial production technology of dimethyl ether is developing rapidly and is used for methanol dehydration or direct synthesis of gas. Methanol dehydration methods include liquid-phase methanol and gas-phase methanol. The reaction of the former is carried out in the liquid phase, and methanol is prepared by dehydration of concentrated sulfuric acid. However, due to the small size of the device, the equipment is easy to corrode, environmental pollution, poor operating conditions and other problems, the method is gradually eliminated. In recent years, the demand for dimethyl ether has increased significantly. Countries have developed new processes with low investment, good operating conditions and no pollution, including one-step process and two-step process

Dimethyl ether is directly synthesized by gas synthesis. "This method directly synthesizes dimethyl ether by water gas transformation, methanol synthesis and methanol dehydration. By identifying the by-products of high-pressure methanol production, the production method of dimethyl ether was prepared for the first time. With the wide application of low-pressure methanol synthesis technology, the adverse reactions are greatly reduced. Dimethyl ether has developed rapidly in industrial production technology, which is used for dehydration of methanol or direct synthesis gas. Methanol dehydration methods include liquid phase methanol method and gas phase methanol method. The former reaction is carried out in liquid phase, and methanol is prepared by dehydration with concentrated sulfuric acid. However, due to the small scale of the device, equipment corrosion, environmental pollution, poor operating conditions and other problems, the method is gradually eliminated. In recent years, the demand for dimethyl ether has increased significantly. Countries have successively developed new processes with low investment, good operation conditions and no pollution, mainly including one-step process and two-step process<br>