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AssigneeCPC Corporation, Taiwan
InventorsWei-Bin Su, Hsun-Yi Huang, Jyh-Haur Hwang, Tzong-Bin Lin, Cheng-Tsung Hong, Hung-Chung Shen, Karl T. Chuang
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A dual-bed catalytic distillation tower has a catalytic column having an upper catalytic bed filled with low temperature dehydration catalysts and a lower catalytic bed filled with high temperature dehydration catalysts. When using the dual-bed catalytic distillation tower, the feed may be fed to the tower at the top of the upper catalytic bed, between the upper and lower catalytic beds, or at the bottom of the lower catalytic bed for dehydration to obtain DME. The dual-bed catalytic distillation tower has the advantage of flexible set up depending on various feeds, such as anhydrous or crude methanol and on different grades of DME to be obtained.
A dual-bed catalytic distillation tower comprising a catalytic column comprising an upper catalytic bed and a lower catalytic bed, wherein at least one feed port is located at the top of said upper catalytic bed, between the upper and lower catalytic beds, and at a bottom of said lower catalytic bed;
Dependencies are inferred from the claim text.