公开(公告)号：US06646177B2

公开(公告)日：2003-11-11

申请号：US09929385

申请日：2001-08-14

申请人： Tomonori Takahashi ,  Hitoshi Sakai ,  Naoyuki Ogawa

发明人： Tomonori Takahashi ,  Hitoshi Sakai ,  Naoyuki Ogawa

IPC分类号： C07C7144

CPC分类号： C07C7/144 ,  C07C15/08

摘要： A method for separating p-xylene by separating and recovering only p-xylene from a p-xylene-containing raw material mixture under high-temperature and high-pressure conditions using a zeolite membrane as a separating membrane is provided. The p-xylene partial pressure at the raw material side of the separating membrane is kept at a sufficiently high pressure and the p-xylene partial pressure at the recovery side of the separating membrane is controlled at a pressure which is not higher than the inflection point of p-xylene adsorption curve. This method for separating p-xylene using a zeolite membrane as a separating membrane can secure a sufficient p-xylene permeation amount and has industrial applicability.

摘要翻译： 提供了一种通过使用沸石膜作为分离膜在高温和高压条件下从含对二甲苯的原料混合物中仅分离和回收对二甲苯来分离对二甲苯的方法。 将分离膜的原料侧的对二甲苯分压保持在足够高的压力下，将分离膜的回收侧的对二甲苯分压控制在不高于拐点的压力 的对二甲苯吸附曲线。 使用沸石膜作为分离膜分离对二甲苯的方法可以确保足够的对二甲苯渗透量并具有工业实用性。

公开(公告)号：US5705129A

公开(公告)日：1998-01-06

申请号：US626314

申请日：1996-04-02

申请人： Tomonori Takahashi ,  Naoyuki Ogawa ,  Toshihiro Yoshida ,  Yuji Katsuda

发明人： Tomonori Takahashi ,  Naoyuki Ogawa ,  Toshihiro Yoshida ,  Yuji Katsuda

IPC分类号： G01N27/12 ,  G01N33/00 ,  G01N27/04

CPC分类号： G01N33/0037 ,  G01N27/12

摘要： An NOx sensor has the sensor element made of an oxide, the resistance of which is varied in response to an NOx component in a gas to be measured, and a measuring portion for measuring a resistance variation of the sensor element and for detecting an NOx concentration in the gas to be measured. A catalyst is arranged at an upstream side of a flow of the gas to be measured with respect reach to the sensor element, which makes a partial pressure ratio of NO/NO.sub.2 reach to an equilibrium state and removes a CO component from the gas to be measured. A heater for adjusting a temperature is arranged at a position close to the sensor element, which maintains temperatures of the sensor element and the catalyst constant. An O.sub.2 sensor is arranged at a position close to the sensor element so that the measuring portion can detect accurately the concentration of Nox in the measurement gas by reference to the resistance of the sensor element.

摘要翻译： NOx传感器具有由氧化物制成的传感器元件，其电阻响应待测气体中的NOx成分而变化，测量部分用于测量传感器元件的电阻变化并用于检测NOx浓度 在要测量的气体中。 催化剂被布置在相对于传感器元件的被测量气体的流动的上游侧，这使得NO / NO 2的分压比达到平衡状态并从气体中除去CO成分 测量。 用于调节温度的加热器布置在接近传感器元件的位置，其保持传感器元件的温度和催化剂的恒定。 O2传感器布置在靠近传感器元件的位置，使得测量部分可以参考传感器元件的电阻精确地检测测量气体中的Nox的浓度。

公开(公告)号：US6044689A

公开(公告)日：2000-04-04

申请号：US63471

申请日：1998-04-20

申请人： Toshihiro Yoshida ,  Naoyuki Ogawa ,  Tomonori Takahashi ,  Shinji Ohtsubo

发明人： Toshihiro Yoshida ,  Naoyuki Ogawa ,  Tomonori Takahashi ,  Shinji Ohtsubo

IPC分类号： G01N27/12 ,  G01N33/00 ,  G01N24/04

CPC分类号： G01N27/12 ,  G01N33/0014 ,  G01N33/0037 ,  Y10T436/173076

摘要： The disclosed apparatus for sensing low concentration NOx in a measurement gas especially in the atmosphere has at least a sensor element made of an oxide arranged in a flow path of the measurement gas, the resistance of the sensor element varying in response to changes in NOx concentration in the measurement gas. As suitable options of this type of the NOx sensor, there are disclosed a chamber used for an apparatus for sensing low concentration NOx, a gas sensor element and a method of manufacturing the gas sensor element, and an ammonia removing apparatus and an NOx sensor utilizing the ammonia removing apparatus.

摘要翻译： 所公开的用于检测特别是大气中的测量气体中的低浓度NOx的装置至少具有由测量气体的流动路径中的氧化物构成的传感器元件，传感器元件的电阻响应于NOx浓度的变化而变化 在测量气体中。 作为这种类型的NOx传感器的合适选择，公开了一种用于感测低浓度NOx的装置的腔室，气体传感器元件和制造气体传感器元件的方法，以及利用氨去除装置和NOx传感器 氨除去装置。

公开(公告)号：US6062064A

公开(公告)日：2000-05-16

申请号：US52602

申请日：1998-03-31

申请人： Toshihiro Yoshida ,  Naoyuki Ogawa ,  Tomonori Takahashi

发明人： Toshihiro Yoshida ,  Naoyuki Ogawa ,  Tomonori Takahashi

IPC分类号： G01N27/12 ,  G01N27/04 ,  G01N33/00

CPC分类号： G01N33/0014 ,  G01N33/0037 ,  G01N27/12 ,  Y10T436/179228

摘要： An apparatus for sensing low concentration NOx in the atmosphere is disclosed. The apparatus has sensor elements arranged in a flow path of the atmosphere, the resistance of each of said sensor elements varying in response to changes in NOx concentration of the atmosphere; a catalyst arranged between said sensor elements to maintain partial pressures of NO and NO.sub.2 in the atmosphere at an equilibrium state; and measuring means for receiving signals from said sensor elements, one sensor element being contacted with the atmosphere which is not passed through said catalyst and the other sensor element being contacted with the atmosphere which is passed through said catalyst and for determining the concentrations of NO.sub.2 and NO in the atmosphere on the basis of said signals.

摘要翻译： 公开了一种用于感测大气中的低浓度NOx的装置。 该装置具有布置在大气的流路中的传感器元件，每个所述传感器元件的电阻响应于大气中NOx浓度的变化而变化; 布置在所述传感器元件之间的催化剂，以在平衡状态下维持大气中的NO和NO 2的分压; 以及用于从所述传感器元件接收信号的测量装置，一个传感器元件与未通过所述催化剂的气氛接触，另一个传感器元件与通过所述催化剂的气氛接触，并且用于确定NO 2和 基于所述信号在大气中的NO。

公开(公告)号：US6006586A

公开(公告)日：1999-12-28

申请号：US36068

申请日：1998-03-06

申请人： Toshihiro Yoshida ,  Naoyuki Ogawa ,  Tomonori Takahashi

发明人： Toshihiro Yoshida ,  Naoyuki Ogawa ,  Tomonori Takahashi

IPC分类号： G01N27/12 ,  G01N27/04 ,  G01N33/00 ,  G01N7/12

CPC分类号： G01N33/0037 ,  G01N33/0062

摘要： A method of measuring a gas concentration for measuring any one of the concentrations of NOx, NO.sub.2, NO, and O.sub.2 by using one or more sensor elements utilizing a metal oxide semiconductor as a sensing element is disclosed. In the method of measuring a gas concentration, any one of the partial pressures of NO.sub.2, NO, and O.sub.2 is calculated on the basis of the following formula (1), and any one of the concentrations of NOx, NO.sub.2, NO, and O.sub.2 is measured on the basis of the calculated partial pressure; ##EQU1## wherein R is resistance and A-H and Q are constant.

摘要翻译： 公开了一种通过使用利用金属氧化物半导体作为感测元件的一个或多个传感器元件来测量用于测量NO x，NO 2，NO和O 2的任一浓度的气体浓度的方法。 在测量气体浓度的方法中，根据下式（1）计算NO 2，NO和O 2的任何一种分压，并且NOx，NO 2，NO和O 2的浓度中的任何一种 基于计算的分压测量; 其中R为电阻，A-H和Q为常数。

公开(公告)号：US5948966A

公开(公告)日：1999-09-07

申请号：US986798

申请日：1997-12-08

申请人： Tomonori Takahashi ,  Naoyuki Ogawa

发明人： Tomonori Takahashi ,  Naoyuki Ogawa

IPC分类号： G01N27/409 ,  F01N11/00 ,  G01N27/26 ,  G01N27/416 ,  G01N33/00 ,  G01N27/00

CPC分类号： G01N33/0047 ,  F01N11/00 ,  G01N33/0014 ,  F01N2550/02 ,  Y02T10/47

摘要： A gas sensor for measuring a specific gas component, especially hydrocarbons, in a gas to be measured, including a hydrocarbon prevention filter preferably made of zeolite. An oxygen concentration difference between (1) an oxygen concentration in a gas to be measured from which hydrocarbons are removed by the hydrocarbon prevention filter and further combustible components are removed and (2) a known oxygen concentration or an oxygen concentration in a gas from which only combustible components are removed, is calculated. Once an oxygen amount necessary for a combustion of hydrocarbons is calculated, it is possible to measure a hydrocarbon concentration in a gas to be measured on the basis of the thus calculated oxygen amount.

摘要翻译： 一种气体传感器，用于测量待测气体中的特定气体成分，特别是烃，包括优选由沸石制成的防烃过滤器。 （1）通过烃防止过滤器除去烃被除去的待测气体中的氧浓度和其他可燃成分之间的氧浓度差除去，和（2）已知的氧浓度或气体中的氧浓度， 只有可燃组分被去除，才算出来。 一旦计算出烃的燃烧所需的氧气量，就可以根据这样计算的氧气量来测量待测气体中的烃浓度。

公开(公告)号：US06461406B1

公开(公告)日：2002-10-08

申请号：US09667930

申请日：2000-09-22

申请人： Hitoshi Sakai ,  Tomonori Takahashi

发明人： Hitoshi Sakai ,  Tomonori Takahashi

IPC分类号： B01D5322

CPC分类号： B01D63/066 ,  B01D53/22 ,  B01D69/02 ,  B01D69/145 ,  B01D71/024 ,  C01B3/503 ,  C01B13/0255 ,  C01B2210/0046 ,  C04B35/2633 ,  C04B35/2641

摘要： A honeycomb type gas separating membrane structure for separating or supplying a specified gas from a mixed gas is provided. The gas separating membrane structure has a honeycomb unitary structure and is a dense body made of a material having a gas separation ability. The honeycomb type gas separating membrane structure does not require a support for supporting a gas separating membrane, increases the membrane area, and reduces costs because its production process is simple.

摘要翻译： 提供了用于从混合气体中分离或供应特定气体的蜂窝型气体分离膜结构。 气体分离膜结构具有蜂窝单体结构，并且是由具有气体分离能力的材料制成的致密体。 蜂窝式气体分离膜结构不需要用于支撑气体分离膜的支撑，增加膜面积，并且由于其制造过程简单而降低成本。

公开(公告)号：US5980989A

公开(公告)日：1999-11-09

申请号：US602845

申请日：1996-02-26

申请人： Tomonori Takahashi ,  Shinichi Kosaka

发明人： Tomonori Takahashi ,  Shinichi Kosaka

IPC分类号： B01D69/14 ,  B01D71/02 ,  C01B3/50 ,  C01B3/56 ,  B01D67/00 ,  B01D69/00

CPC分类号： B01D67/0069 ,  B01D67/0088 ,  B01D69/141 ,  B01D71/022 ,  C01B3/503 ,  C01B3/505 ,  B01D2323/46 ,  B01D2325/04 ,  B01D2325/22 ,  C01B2203/0405 ,  C01B2203/0475

摘要： A gas separator is here disclosed in which a metal for separating a gas is filled into pores opened on the surface of a porous substrate to close them. The thus constituted gas separator can prevent a material gas from leaking into a purified gas. A method for preparing the gas separator is also disclosed which comprises an activation step of immersing the porous substrate having a pair of surfaces in a solution containing an activated metal, while a pressure difference is set between the pair of surfaces, and a chemical plating step of filling the metal for separating the gas into the pores opened on the surface of the porous substrate to close these pores by chemical plating.

摘要翻译： PCT No.PCT / JP94 / 01046 Sec。 371日期1996年2月26日 102（e）日期1996年2月26日PCT提交1994年6月28日PCT公布。 出版物WO96 / 00608 日本1996年1月11日这里公开了一种气体分离器，其中用于分离气体的金属被填充到在多孔基材的表面上开口的孔中以封闭它们。 这样构成的气体分离器可以防止原料气体泄漏到净化气体中。 还公开了一种制备气体分离器的方法，其包括将具有一对表面的多孔基材浸渍在含有活化金属的溶液中的活化步骤，同时在一对表面之间设置压力差，以及化学镀层步骤 填充用于将气体分离成在多孔基材的表面上开口的孔中的金属，以通过化学镀来封闭这些孔。

公开(公告)号：US5897970A

公开(公告)日：1999-04-27

申请号：US961502

申请日：1997-10-30

申请人： Manabu Isomura ,  Takao Soma ,  Tomonori Takahashi

发明人： Manabu Isomura ,  Takao Soma ,  Tomonori Takahashi

IPC分类号： B01D53/22 ,  B01J19/24 ,  C01B3/32 ,  C01B3/34 ,  C01B3/38 ,  C01B3/50 ,  H01M8/00 ,  H01M8/06 ,  H01M16/00

CPC分类号： H01M8/0631 ,  B01J19/2475 ,  C01B3/32 ,  C01B3/323 ,  C01B3/34 ,  C01B3/38 ,  C01B3/382 ,  C01B3/386 ,  C01B3/501 ,  H01M8/0612 ,  B01J2219/0011 ,  B01J2219/00117 ,  B01J2219/00159 ,  C01B2203/0244 ,  C01B2203/041 ,  C01B2203/0465 ,  C01B2203/047 ,  C01B2203/066 ,  C01B2203/0811 ,  C01B2203/0822 ,  C01B2203/0827 ,  C01B2203/0844 ,  C01B2203/0866 ,  C01B2203/1064 ,  C01B2203/1076 ,  C01B2203/1223 ,  C01B2203/1288 ,  C01B2203/142 ,  C01B2203/1604 ,  C01B2203/82 ,  Y02P20/126 ,  Y02P20/128

摘要： There is a system for producing high-purity hydrogen by reforming a hydrocarbon and/or an oxygen atom-containing hydrocarbon to form a reformed gas containing hydrogen and separating the hydrogen from said gas. The system includes a hydrocarbon source, a water source, an oxygen source, a vaporization chamber connecting with the hydrocarbon source, the water source and the oxygen source, and a reforming chamber provided with a catalyst for steam reforming and partial oxidation and a hydrogen-separating membrane. The reforming chamber is thermally connected with the vaporization chamber. A process for producing high-purity hydrogen includes heating a reforming chamber provided with a hydrogen-separating membrane, feeding, into the reforming chamber, hydrocarbon, steam and oxygen or air to give rise to steam reforming and partial oxidation therein to produce a reaction gas, and passing the reaction gas through the hydrogen-separating membrane to recover high-purity hydrogen. The heat possessed by the portion of the reaction gas not permeable into the hydrogen-separating membrane and the heat generated by the partial oxidation are utilized for the heating and reforming of the hydrocarbon, water and oxygen or air.

摘要翻译： 存在通过重整烃和/或含氧原子的烃来形成含氢的重整气体并从所述气体中分离出氢气的方法来生产高纯度氢气。 该系统包括烃源，水源，氧源，与烃源连接的蒸发室，水源和氧源，以及设置有用于蒸汽重整和部分氧化的催化剂的重整室， 分离膜。 重整室与蒸发室热连接。 一种生产高纯度氢的方法包括加热设置有氢分离膜的重整室，向重整室供给碳氢化合物，蒸气和氧气或空气，引起蒸汽重整和部分氧化，产生反应气体 ，并使反应气体通过氢分离膜以回收高纯度氢。 反应气体不能透过氢分离膜的部分所产生的热量以及由部分氧化产生的热量用于烃，水和氧气或空气的加热和重整。

公开(公告)号：US5518530A

公开(公告)日：1996-05-21

申请号：US321894

申请日：1994-10-14

申请人： Osamu Sakai ,  Tomonori Takahashi ,  Tetsuhisa Abe ,  Tomoyuki Fujii

发明人： Osamu Sakai ,  Tomonori Takahashi ,  Tetsuhisa Abe ,  Tomoyuki Fujii

IPC分类号： B01D53/22 ,  B01D63/06 ,  B01D71/02 ,  C01B3/50

CPC分类号： B01D53/22 ,  B01D63/061 ,  C01B3/505 ,  B01D2257/108 ,  B01D2313/42

摘要： A connected body including a gas separator 10 and metallic members 21 and 22, each of which has a partly oxidized surface to be reliably connected with the gas separator. The gas separator includes a ceramic substrate 11 and a gas separation membrane 12 to be coated onto substrate 11. The substrate 11 is porous so that a gas molecule can pass therethrough, and gas separation membrane 12 is connected with metallic members 21 and 22 by a glass 15 having a thermal expansion coefficient of 5.0-8.0.times.10.sup.-6 /.degree.C. Glass 15 contacts with metal supporters 21 and 22 with a contact angle of 90.degree. or less. The connected body of a gas separator and metallic supporters and an apparatus for separating hydrogen gas from a mixed gas display excellent durability and are free from leakage at the joints during the separation of hydrogen gas at high temperatures and under high pressure.

摘要翻译： 连接体，包括气体分离器10和金属部件21和22，每个金属部件具有部分氧化的表面以与气体分离器可靠地连接。 气体分离器包括陶瓷基板11和要涂覆到基板11上的气体分离膜12.基板11是多孔的，使得气体分子可以通过，气体分离膜12通过一个金属部件21和22与金属部件21和22连接 玻璃15的热膨胀系数为5.0-8.0×10 -6 /℃。玻璃15与接触角为90°以下的金属支撑体21,22接触。 气体分离器和金属支撑体的连接体和用于从混合气体中分离氢气的装置显示出优异的耐久性，并且在高温和高压下氢气分离期间在接头处没有泄漏。