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公开(公告)号：US09739504B2
公开(公告)日：2017-08-22
申请号：US13638176
申请日：2010-12-03
摘要： The present invention provides a steam generator capable of greatly improving energy efficiency, and an energy supply system that uses the steam generator. The steam generator of the present invention includes a high-temperature chamber to which heat of 250° C. to 800° C. is supplied; a low-temperature chamber arranged adjacent to the high-temperature chamber and configured to produce low-temperature steam of 50° C. to 185° C. from water using the heat of the high-temperature chamber; and at least one thermoelectric element arranged between the high-temperature chamber and the low-temperature chamber.
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公开(公告)号：US08530714B2
公开(公告)日：2013-09-10
申请号：US12085055
申请日：2006-11-13
申请人： Hirofumi Ito , Kazunori Honda , Koji Oyama , Nobuyasu Chikamatsu , Kazutaka Hiraoka , Atsushi Okita
发明人： Hirofumi Ito , Kazunori Honda , Koji Oyama , Nobuyasu Chikamatsu , Kazutaka Hiraoka , Atsushi Okita
IPC分类号： C07C1/20
CPC分类号： B01J29/04 , B01J29/40 , B01J2229/183 , B01J2229/62 , C07C1/20 , C07C2529/70 , Y02P20/52 , Y02P30/42 , C07C11/02 , C07C11/06
摘要： Disclosed is a method for production of lower olefins from a raw material containing dimethyl ether (DME), which can produce lower olefins (e.g. propylene) with good yield and in an economically advantageous manner by prolonging the time until the reversible deactivation of a zeolite catalyst and preventing the irreversible deactivation of the catalyst, can reduce the amount of water to be recycled to increase the thermal efficiency of the process, and can simplify the facilities and operations. Also disclosed is a method for improving the yield of propylene with good efficiency under practical operating conditions. A feed gas which comprises a DME-containing feedstock gas and an additive gas and further contains steam at a specific proportion is introduced into an olefin synthesis reactor to contact the feed gas with a zeolite catalyst, thereby producing a hydrocarbon product containing C2-C5 olefins. Propylene or the like is separated/collected from the hydrocarbon product, and at least a part of the remainder is used as at least a part of the additive gas.
摘要翻译： 公开了一种从含有二甲醚（DME）的原料中生产低级烯烃的方法，其可以以良好的产率生产低级烯烃（例如丙烯），并且以经济上有利的方式通过延长直到沸石催化剂的可逆失活的时间 并防止催化剂的不可逆失活，可以减少再循环的水量，从而提高过程的热效率，并且可以简化设施和操作。 还公开了在实际操作条件下以良好的效率提高丙烯的产率的方法。 将包含含DME的原料气体和添加气体并进一步含有特定比例的蒸汽的进料气体引入到烯烃合成反应器中以使进料气体与沸石催化剂接触，由此生产含有C2-C5烯烃的烃产物 。 从烃产物中分离/收集丙烯等，其余部分的至少一部分用作添加剂气体的至少一部分。
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公开(公告)号：US20100217054A1
公开(公告)日：2010-08-26
申请号：US12085055
申请日：2006-11-13
申请人： Hirofumi Ito , Kazunori Honda , Koji Oyama , Nobuyasu Chikamatsu , Kazutaka Hiraoka , Atsushi Okita
发明人： Hirofumi Ito , Kazunori Honda , Koji Oyama , Nobuyasu Chikamatsu , Kazutaka Hiraoka , Atsushi Okita
IPC分类号： C07C1/20
CPC分类号： B01J29/04 , B01J29/40 , B01J2229/183 , B01J2229/62 , C07C1/20 , C07C2529/70 , Y02P20/52 , Y02P30/42 , C07C11/02 , C07C11/06
摘要： Disclosed is a method for production of lower olefins from a raw material containing dimethyl ether (DME), which can produce lower olefins (e.g. propylene) with good yield and in an economically advantageous manner by prolonging the time until the reversible deactivation of a zeolite catalyst and preventing the irreversible deactivation of the catalyst, can reduce the amount of water to be recycled to increase the thermal efficiency of the process, and can simplify the facilities and operations. Also disclosed is a method for improving the yield of propylene with good efficiency under practical operating conditions. A feed gas which comprises a DME-containing feedstock gas and an additive gas and further contains steam at a specific proportion is introduced into an olefin synthesis reactor to contact the feed gas with a zeolite catalyst, thereby producing a hydrocarbon product containing C2-C5 olefins. Propylene or the like is separated/collected from the hydrocarbon product, and at least a part of the remainder is used as at least a part of the additive gas.
摘要翻译： 公开了一种从含有二甲醚（DME）的原料中生产低级烯烃的方法，其可以以良好的产率生产低级烯烃（例如丙烯），并且以经济上有利的方式通过延长直到沸石催化剂的可逆失活的时间 并防止催化剂的不可逆失活，可以减少再循环的水量，从而提高过程的热效率，并且可以简化设施和操作。 还公开了在实际操作条件下以良好的效率提高丙烯的产率的方法。 将包含含DME的原料气体和添加气体并进一步含有特定比例的蒸汽的进料气体引入到烯烃合成反应器中以使进料气体与沸石催化剂接触，由此生产含有C2-C5烯烃的烃产物 。 从烃产物中分离/收集丙烯等，其余部分的至少一部分用作添加剂气体的至少一部分。
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公开(公告)号：US20130019598A1
公开(公告)日：2013-01-24
申请号：US13638176
申请日：2010-12-03
摘要： The present invention provides a steam generator capable of greatly improving energy efficiency, and an energy supply system that uses the steam generator. The steam generator of the present invention includes a high-temperature chamber to which heat of 250° C. to 800° C. is supplied; a low-temperature chamber arranged adjacent to the high-temperature chamber and configured to produce low-temperature steam of 50° C. to 185° C. from water using the heat of the high-temperature chamber; and at least one thermoelectric element arranged between the high-temperature chamber and the low-temperature chamber.
摘要翻译： 本发明提供能够极大地提高能量效率的蒸汽发生器，以及使用蒸汽发生器的能量供给系统。 本发明的蒸汽发生器包括供应250℃至800℃的热量的高温室; 低温室，其布置成与所述高温室相邻，并且构造成使用所述高温室的热量从水中产生50℃至185℃的低温蒸汽; 以及布置在高温室和低温室之间的至少一个热电元件。
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