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    • 1. 发明申请
    • Method for Making Dimethyl Ether by Reactive-Distillation
    • 通过反应蒸馏制备二甲醚的方法
    • US20120232311A1
    • 2012-09-13
    • US13044271
    • 2011-03-09
    • Cheng-Ting HsiehHow-Ming LeeKuo-Chao LiangChin-Ching Tzeng
    • Cheng-Ting HsiehHow-Ming LeeKuo-Chao LiangChin-Ching Tzeng
    • C07C41/09
    • B01D3/009C07C41/09Y02P20/127C07C43/043
    • Disclosed is a method for making dimethyl ether by reactive distillation. The method provides a reactive distillation tower with a top, a bottom, and rectification, reaction and stripping zones defined therein. The top of the reactive distillation tower is retained at 25° C. to 40° C. while the bottom of the reactive distillation tower is retained at 84.6° C. to 170° C. Each of the rectification, reaction and stripping zones includes several sieving trays. The reaction zone of the reactive distillation tower is filled with catalyst. The pressure in the reactive distillation tower is lower than 8.0 bars. Methanol is introduced into the reactive distillation tower so that the methanol travels from the reaction zone toward the bottom for contact with the catalyst to provide a top stream and a bottom stream. The top stream includes dimethyl ether. The bottom stream includes water and a remaining portion of the methanol. Finally, the dimethyl ether is collected in the top of the reactive distillation tower. The purity of the collected dimethyl ether is higher than 99%.
    • 公开了通过反应蒸馏制备二甲醚的方法。 该方法提供了反应蒸馏塔,其中限定了顶部,底部和精馏,反应和汽提区。 反应蒸馏塔的顶部保持在25℃至40℃,而反应蒸馏塔的底部保持在84.6℃至170℃。每个精馏,反应和汽提区包括几个 筛分托盘 反应蒸馏塔的反应区用催化剂填充。 反应蒸馏塔中的压力低于8.0巴。 将甲醇引入反应蒸馏塔中,使得甲醇从反应区向底部移动以与催化剂接触以提供顶部流和底部流。 顶级流包括二甲醚。 底部流包括水和甲醇的剩余部分。 最后,将二甲醚收集在反应蒸馏塔的顶部。 收集的二甲醚的纯度高于99%。
    • 2. 发明授权
    • Method for making dimethyl ether by reactive-distillation
    • 通过反应蒸馏制备二甲醚的方法
    • US08816134B2
    • 2014-08-26
    • US13044271
    • 2011-03-09
    • Cheng-Ting HsiehHow-Ming LeeKuo-Chao LiangChin-Ching Tzeng
    • Cheng-Ting HsiehHow-Ming LeeKuo-Chao LiangChin-Ching Tzeng
    • C07C41/09C07C43/04B01D3/00
    • B01D3/009C07C41/09Y02P20/127C07C43/043
    • Disclosed is a method for making dimethyl ether by reactive distillation. The method provides a reactive distillation tower with a top, a bottom, and rectification, reaction and stripping zones defined therein. The top of the reactive distillation tower is retained at 25° C. to 40° C. while the bottom of the reactive distillation tower is retained at 84.6° C. to 170° C. Each of the rectification, reaction and stripping zones includes several sieving trays. The reaction zone of the reactive distillation tower is filled with catalyst. The pressure in the reactive distillation tower is lower than 8.0 bars. Methanol is introduced into the reactive distillation tower so that the methanol travels from the reaction zone toward the bottom for contact with the catalyst to provide a top stream and a bottom stream. The top stream includes dimethyl ether. The bottom stream includes water and a remaining portion of the methanol. Finally, the dimethyl ether is collected in the top of the reactive distillation tower. The purity of the collected dimethyl ether is higher than 99%.
    • 公开了通过反应蒸馏制备二甲醚的方法。 该方法提供了反应蒸馏塔,其中限定了顶部,底部和精馏,反应和汽提区。 反应蒸馏塔的顶部保持在25℃至40℃,而反应蒸馏塔的底部保持在84.6℃至170℃。每个精馏,反应和汽提区包括几个 筛分托盘 反应蒸馏塔的反应区用催化剂填充。 反应蒸馏塔中的压力低于8.0巴。 将甲醇引入反应蒸馏塔中,使得甲醇从反应区向底部移动以与催化剂接触以提供顶部流和底部流。 顶级流包括二甲醚。 底部流包括水和甲醇的剩余部分。 最后,将二甲醚收集在反应蒸馏塔的顶部。 收集的二甲醚的纯度高于99%。
    • 7. 发明申请
    • Continuous Constant-Rate Feeding System
    • 连续恒速送料系统
    • US20120199445A1
    • 2012-08-09
    • US13024065
    • 2011-02-09
    • Lieh-Chih ChangHow-Ming LeeChin-Ching Tzeng
    • Lieh-Chih ChangHow-Ming LeeChin-Ching Tzeng
    • B65G33/14B65G33/34
    • B65G65/4836
    • A continuous constant-rate feeding system includes at least one storage unit, a scratching unit and a water-cooled screw feeding unit. The storage unit includes a tank and an agitator. The tank stores material and includes upper and lower chambers. The agitator is rotationally located in the upper chamber for agitating the material. The scratching unit includes upper and lower scratchers and a material divider. The upper scratcher is located in the upper chamber and can spin to convey the material from the upper chamber into the lower chamber. The lower scratcher is located in the lower chamber and can spin to convey the material from the lower chamber into the water-cooled screw feeding unit. The material divider locates between the upper and lower chambers and spin automatically or manually to fall the material from the upper chamber into the lower chamber through a specific aperture alternately.
    • 连续恒速送料系统包括至少一个储存单元,刮擦单元和水冷螺旋进料单元。 存储单元包括罐和搅拌器。 储罐储存材料,并包括上下室。 搅拌器旋转地位于上室中以搅拌材料。 刮擦单元包括上部和下部刮刀和一个材料分隔件。 上部刮刀位于上部腔室中,并且可以旋转以将材料从上部腔室输送到下部腔室中。 下部刮刀位于下部腔室中,并且可以旋转以将材料从下部腔室输送到水冷螺杆进给单元中。 材料分隔件位于上部和下部腔室之间,自动或手动旋转以将材料从上部腔室通过特定的孔交替地落入下部腔室。
    • 8. 发明授权
    • Continuous constant-rate feeding system
    • 连续定速喂料系统
    • US08353394B2
    • 2013-01-15
    • US13024065
    • 2011-02-09
    • Lieh-Chih ChangHow-Ming LeeChin-Ching Tzeng
    • Lieh-Chih ChangHow-Ming LeeChin-Ching Tzeng
    • F26B3/347
    • B65G65/4836
    • A continuous constant-rate feeding system includes at least one storage unit, a scratching unit and a water-cooled screw feeding unit. The storage unit includes a tank and an agitator. The tank stores material and includes upper and lower chambers. The agitator is rotationally located in the upper chamber for agitating the material. The scratching unit includes upper and lower scratchers and a material divider. The upper scratcher is located in the upper chamber and can spin to convey the material from the upper chamber into the lower chamber. The lower scratcher is located in the lower chamber and can spin to convey the material from the lower chamber into the water-cooled screw feeding unit. The material divider locates between the upper and lower chambers and spin automatically or manually to fall the material from the upper chamber into the lower chamber through a specific aperture alternately.
    • 连续恒速送料系统包括至少一个储存单元,刮擦单元和水冷螺旋进料单元。 存储单元包括罐和搅拌器。 储罐储存材料,并包括上下室。 搅拌器旋转地位于上室中以搅拌材料。 刮擦单元包括上部和下部刮刀和一个材料分隔件。 上部刮刀位于上部腔室中,并且可以旋转以将材料从上部腔室输送到下部腔室中。 下部刮刀位于下部腔室中,并且可以旋转以将材料从下部腔室输送到水冷螺杆进给单元中。 材料分隔件位于上部和下部腔室之间,自动或手动旋转以将材料从上部腔室通过特定的孔交替地落入下部腔室。