公开(公告)号：US20070249058A1

公开(公告)日：2007-10-25

申请号：US11406720

申请日：2006-04-19

申请人： Alwarappa Sivaraman

发明人： Alwarappa Sivaraman

IPC分类号： G01N33/00

CPC分类号： G01N33/0016 ,  G01N29/036 ,  G01N2291/0215 ,  G01N2291/0253 ,  G01N2291/02872 ,  G01N2291/02881 ,  Y10T436/21

摘要： A method and system for determining a hydrocarbon dewpoint of natural gas in which a spherical acoustic resonator is filled with natural gas at a first temperature and pressure, where the first temperature is above the hydrocarbon dewpoint at the pressure. An acoustic signal is introduced into the natural gas and the radial resonance frequency of the natural gas is measured as the temperature of the natural gas is reduced. As the temperature decreases, the radial resonance frequency also decreases. The hydrocarbon dewpoint is the temperature at which the radial resonance frequency is at a minimum.

摘要翻译： 一种用于测定天然气的烃露点的方法和系统，其中在第一温度和高压下第一温度高于烃露点的天然气中填充有球形声共振器。 在天然气中引入声信号，天然气的温度降低时测量天然气的径向共振频率。 随着温度的降低，径向共振频率也降低。 烃露点是径向共振频率处于最小值的温度。

公开(公告)号：US20070251298A1

公开(公告)日：2007-11-01

申请号：US11412212

申请日：2006-04-26

申请人： Alwarappa Sivaraman

发明人： Alwarappa Sivaraman

IPC分类号： G01N29/02

CPC分类号： G01N29/036 ,  G01N29/30 ,  G01N2291/0215

摘要： An apparatus for BTU measurement of natural gas having at least one reference spherical acoustic resonator containing a reference gas, a sample gas spherical acoustic resonator containing a natural gas sample, a first acoustic transmitter adapted to transmit a first acoustic signal into the natural gas sample, a second acoustic transmitter adapted to transmit a second acoustic signal into the reference gas, a first acoustic receiver adapted to receive at least a portion of the first acoustic signal, and a second acoustic receiver adapted to receive at least a portion of the second acoustic signal. Using the third radial resonance frequencies for the sample gas and reference gas, a data processor operably connected with a signal output of the first acoustic receiver determines the specific gravity of the natural gas sample. The discovered linear relationship between specific gravity and heating value of natural gas enables a determination of the heating value from the measured specific gravity.

摘要翻译： 一种用于BTU测量天然气的装置，其具有至少一个包含参考气体的参考球面声共振器，包含天然气样品的样品气球形声谐振器，适于将第一声信号传输到天然气样品中的第一声发射器， 适于将第二声信号传输到参考气体中的第二声发射器，适于接收第一声信号的至少一部分的第一声接收器，以及适于接收第二声信号的至少一部分的第二声接收器 。 使用样品气体和参考气体的第三径向共振频率，与第一声学接收器的信号输出可操作地连接的数据处理器确定天然气样品的比重。 发现天然气的比重和热值之间的线性关系可以根据测得的比重确定发热值。

公开(公告)号：US06946017B2

公开(公告)日：2005-09-20

申请号：US10728332

申请日：2003-12-04

申请人： Dennis Leppin ,  Alwarappa Sivaraman

发明人： Dennis Leppin ,  Alwarappa Sivaraman

IPC分类号： B01D53/14 ,  B01D53/34 ,  C01B31/20

CPC分类号： B01D53/1475 ,  Y02C10/06

摘要： A process for separation of carbon dioxide and methane in which a gas mixture comprising carbon dioxide and methane is brought into contact with a methane hydrate solid material disposed in a reactor vessel, whereby the methane hydrate is displaced by carbon dioxide hydrate, thereby freeing the methane, which is then removed from the reactor vessel.

公开(公告)号：US20050120878A1

公开(公告)日：2005-06-09

申请号：US10728332

申请日：2003-12-04

申请人： Dennis Leppin ,  Alwarappa Sivaraman

发明人： Dennis Leppin ,  Alwarappa Sivaraman

IPC分类号： B01D53/14

CPC分类号： B01D53/1475 ,  Y02C10/06

摘要： A process for separation of carbon dioxide and methane in which a gas mixture comprising carbon dioxide and methane is brought into contact with a methane hydrate solid material disposed in a reactor vessel, whereby the methane hydrate is displaced by carbon dioxide hydrate, thereby freeing the methane, which is then removed from the reactor vessel.

摘要翻译： 一种分离二氧化碳和甲烷的方法，其中将包含二氧化碳和甲烷的气体混合物与设置在反应器容器中的甲烷水合物固体材料接触，由此甲烷水合物被二氧化碳水合物置换，从而释放甲烷 ，然后将其从反应器容器中取出。

公开(公告)号：US07316151B2

公开(公告)日：2008-01-08

申请号：US11412212

申请日：2006-04-26

申请人： Alwarappa Sivaraman

发明人： Alwarappa Sivaraman

IPC分类号： G01N9/36 ,  G01N23/00

CPC分类号： G01N29/036 ,  G01N29/30 ,  G01N2291/0215

摘要： An apparatus for BTU measurement of natural gas having at least one reference spherical acoustic resonator containing a reference gas, a sample gas spherical acoustic resonator containing a natural gas sample, a first acoustic transmitter adapted to transmit a first acoustic signal into the natural gas sample, a second acoustic transmitter adapted to transmit a second acoustic signal into the reference gas, a first acoustic receiver adapted to receive at least a portion of the first acoustic signal, and a second acoustic receiver adapted to receive at least a portion of the second acoustic signal. Using the third radial resonance frequencies for the sample gas and reference gas, a data processor operably connected with a signal output of the first acoustic receiver determines the specific gravity of the natural gas sample. The discovered linear relationship between specific gravity and heating value of natural gas enables a determination of the heating value from the measured specific gravity.

摘要翻译： 一种用于BTU测量天然气的装置，其具有至少一个包含参考气体的参考球面声共振器，包含天然气样品的样品气球形声谐振器，适于将第一声信号传输到天然气样品中的第一声发射器， 适于将第二声信号传输到参考气体中的第二声发射器，适于接收第一声信号的至少一部分的第一声接收器，以及适于接收第二声信号的至少一部分的第二声接收器 。 使用样品气体和参考气体的第三径向共振频率，与第一声学接收器的信号输出可操作地连接的数据处理器确定天然气样品的比重。 发现天然气的比重和热值之间的线性关系可以根据测得的比重确定发热值。

公开(公告)号：US20050121200A1

公开(公告)日：2005-06-09

申请号：US10771869

申请日：2004-02-04

申请人： Alwarappa Sivaraman

发明人： Alwarappa Sivaraman

IPC分类号： B01D53/14 ,  E21B41/00 ,  E21B43/16 ,  E21B43/00

CPC分类号： B01D53/1475 ,  C01B32/50 ,  E21B41/0064 ,  E21B43/164 ,  E21B2043/0115 ,  Y02C10/06 ,  Y02C10/14 ,  Y02P20/152 ,  Y02P90/70

摘要： A method for sequestering and storing CO2 in which gaseous carbon dioxide is injected into a subterranean methane hydrate field, displacing methane in the methane hydrate field with the carbon dioxide and forming carbon dioxide hydrate. The displaced methane may then be collected.

摘要翻译： 一种用于隔离和储存CO 2的方法，其中将气态二氧化碳注入到地下甲烷水合物场中，用二氧化碳置换甲烷水合物场中的甲烷并形成二氧化碳水合物。 然后可以收集置换的甲烷。