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    • 2. 发明申请
    • METHOD FOR TREATING WASTE WATER CONTAINING NITRATE ION
    • 用于处理含有硝酸盐的废水的方法
    • US20090145858A1
    • 2009-06-11
    • US11719505
    • 2005-11-17
    • Shigeru MiharaHirofumi ItoMikio HiranoTakashi Kato
    • Shigeru MiharaHirofumi ItoMikio HiranoTakashi Kato
    • C02F1/70B01J23/89B01J35/08
    • C02F1/70B01J21/18B01J23/8926B01J35/08C02F1/66C02F1/68C02F1/705C02F2101/163
    • A method for treating waste water containing nitrate ion which comprises supplying raw waste water from a tube (2), formalin from a tube (3) and an aqueous alkaline solution from a tube (4) to a mixing vessel (1), while agitating with an agitator (5), so the resultant mixture has a pH of 7 or higher, transferring the mixture from an outlet pipe (6) to a catalyst bed (9) through a tube (8) by a pump (7), and discharging the treated fluid drained from the catalyst bed (9) to the outside of the system through pipe (11), wherein the catalyst bed (9) is provided within a jacket (10), through which a liquid such as water flows, for the temperature control, and is packed with a support type catalyst comprising spherical type activated carbon and Pd—Cu supported thereon. The type of reactor containing the support type catalyst in the catalyst bed (9) may be a fluidized bed or a fixed bed. The above method can be suitably used for reducing nitrate ion to nitrogen by the use of formalin as a reducing agent at a low treating cost and with a low selectivity of ammonia as a by-product.
    • 一种用于处理废水的含硝酸根离子,其包括从管(2),福尔马林从管(3)和从一个管(4)到混合容器(1)的碱性水溶液供给原废水,同时进行搅拌的方法 有搅拌器(5),因此所得到的混合物的pH为7或更高,将混合物从出口管(6)通过管(8),通过泵(7)转移到一个催化剂床(9),和 放电通过管(11)从所述催化剂床(9)排出到系统外的处理过的流体,其中所述催化剂床(9)的夹套(10)内,通过该液体,例如水的流动,​​对于 温度控制,并且填充有支撑型催化剂,其包含球形活性炭和负载在其上的Pd-Cu。 含在催化剂床(9)的负载型催化剂的反应器类型可以是流化床或固定床。 上述方法可以适当地使用了通过使用福尔马林作为以低处理成本还原剂还原硝酸根离子为氮和与氨的选择性低,为副产物。
    • 5. 发明授权
    • Process for removal of mercury from a liquid hydrocarbon
    • 从液态碳氢化合物中除去汞的工艺
    • US5037552A
    • 1991-08-06
    • US352024
    • 1989-05-15
    • Akio FurutaKunio SatoKazuo SatoTooru MatsuzawaHirofumi Ito
    • Akio FurutaKunio SatoKazuo SatoTooru MatsuzawaHirofumi Ito
    • C10G25/00C10G29/10C10G53/08
    • C10G53/08C10G25/003C10G29/10C10G2300/205Y10S210/914
    • A liquid hydrocarbon such as a natural gas liquid generally contains a small amount of mercury in a state of elemental mercury, ionized mercury, ionizable mercury compounds, which are requested to be removed thoroughly. Further, organic mercury compounds are contained in some natural gas liquid and other liquid hydrocarbons depending on their district of production, and its removal is also necessary.Already known adsorbents can adsorb elemental mercury and organic mercury compounds in a liquid hydrocarbon, but they hardly adsorb ionizable mercury compounds and ionized mercury derived from the ionizable mercury compounds.According to the preesent invention which comprises contacting the liquid hydrocarbon with a sulfur compound represented by a general formula MM'S.sub.x, wherein M is selected from a group consisting of alkali metal and ammonium radical, M' is selected from a group consisting of alkali metal, ammonium radical and hydrogen an x is a number of at least 1, the sulfur compound and mercury in the liquid hydrocarbon reacts to form mercury sulfide which is insoluble in the liquid hydrocarbon to be separated therefrom.If the liquid hydrocarbon contains organic mercury compounds together with elemental mercury ionized mercury and ionizable mercury compounds, the above-mentioned process is to be combined with a process of contacting the liquid hydrocarbon with an adsorbent comprising heavy metal sulfide to adsorb the organic mercury compounds together with the mercury sulfide which is formed in the above-mentioned process.
    • 9. 发明授权
    • Method for production of lower olefin
    • 低级烯烃的生产方法
    • US08530714B2
    • 2013-09-10
    • US12085055
    • 2006-11-13
    • Hirofumi ItoKazunori HondaKoji OyamaNobuyasu ChikamatsuKazutaka HiraokaAtsushi Okita
    • Hirofumi ItoKazunori HondaKoji OyamaNobuyasu ChikamatsuKazutaka HiraokaAtsushi Okita
    • C07C1/20
    • B01J29/04B01J29/40B01J2229/183B01J2229/62C07C1/20C07C2529/70Y02P20/52Y02P30/42C07C11/02C07C11/06
    • 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.
    • 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。
    • 10. 发明申请
    • Method for Production of Lower Olefin
    • 低烯烃生产方法
    • US20100217054A1
    • 2010-08-26
    • US12085055
    • 2006-11-13
    • Hirofumi ItoKazunori HondaKoji OyamaNobuyasu ChikamatsuKazutaka HiraokaAtsushi Okita
    • Hirofumi ItoKazunori HondaKoji OyamaNobuyasu ChikamatsuKazutaka HiraokaAtsushi Okita
    • C07C1/20
    • B01J29/04B01J29/40B01J2229/183B01J2229/62C07C1/20C07C2529/70Y02P20/52Y02P30/42C07C11/02C07C11/06
    • 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.
    • 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。