Cpc Corporation, Taiwan

Cpc Corporation

Wei-Bin Su

Karl Tze-Tang Chuang

Cheng-Tsung Hong

Tzong-Bin Lin

Hung-Chung Shen

Yung-Sheng Ho

Karl T Chuang

Jyh-Haur Hwang

Jeng-Cheng Lee

Hsun-Yi Huang

Chung-Chen Lai

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 feeding 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 feedings such as anhydrous or crude methanol and on different grades of DME to be obtained.

Dual-bed catalytic distillation tower and method for preparing dimethyl ether using the same

This invention describes a method for co-producing isobutene and methyl tert-butyl ether in a catalytic distillation column, wherein contacting with solid acid catalysts the charged tert-butanol mixture undergoes dehydration and etherification. The mixture of isobutene and methyl tert-butyl ether withdrawn from the column top can be further separated, thus high purity isobutene and fuel-additive methyl tert-butyl ether are obtained.

Method for coproducing isobutene and MTBE from tert-butanol mixture in a catalytic distillation column

This invention describes a method for co-producing isobutene and ethyl tert-butyl ether from tert-butanol mixture in a catalytic distillation column, wherein catalyzing the tert-butanol mixture with the ethanol undergoes dehydration and etherification. The tert-butanol mixture contains absolute ethanol or aqueous ethanol as the antifreeze agent. The isobutene and the ethyl tert-butyl ether withdrawn from the column top are further separated, thus high purity isobutene and ethyl tert-butyl ether for fuel-additive are obtained.

Method for coproducing isobutene and ETBE from tert-Butanol mixture

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.

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Chiayi, Taiwan

Wei-Bin Su