公开(公告)号：US10118125B1

公开(公告)日：2018-11-06

申请号：US15521252

申请日：2015-10-23

申请人： EXP SERVICES INC.

发明人： Stéphane Chabot ,  Yves Charest ,  Martin Beaulieu ,  Abderrahman Mahfoud

IPC分类号： B01D53/52 ,  B01D53/73 ,  B01D53/78 ,  B01D53/14 ,  C01F11/46 ,  C01F11/48

CPC分类号： B01D53/52 ,  B01D53/1468 ,  B01D53/1493 ,  B01D53/73 ,  B01D53/78 ,  B01D2251/404 ,  B01D2252/202 ,  B01D2258/0283 ,  C01F11/46 ,  C01F11/48

摘要： There are provided processes for removing H2S from a gas. The processes comprise contacting the gas with an aqueous composition comprising at least one calcium compound, thereby obtaining CaS and a H2S lean treated gas stream, while maintaining the pH at about 9.5 to about 13.0; and contacting the CaS with an aqueous oxidant solution, converting the CaS into at least one of CaSO3 and CaSO4, while maintaining the pH at about 9.5 to about 13.0.

公开(公告)号：US09522206B2

公开(公告)日：2016-12-20

申请号：US14836757

申请日：2015-08-26

申请人： EXP SERVICES INC.

发明人： Martin Beaulieu ,  Stéphane Chabot ,  Yves Charest

IPC分类号： B01J8/00 ,  A62D3/00 ,  A61L9/00 ,  A61L9/16 ,  A61L9/20 ,  B01D53/44 ,  C02F1/72 ,  C02F1/28 ,  C02F1/32 ,  C02F1/68

CPC分类号： B01D53/78 ,  A61L9/00 ,  A61L9/145 ,  A61L9/16 ,  A61L9/20 ,  B01D53/04 ,  B01D53/44 ,  B01D2251/106 ,  B01D2251/304 ,  B01D2251/604 ,  B01D2251/70 ,  B01D2251/902 ,  B01D2253/102 ,  B01D2257/90 ,  B01D2258/06 ,  C02F1/283 ,  C02F1/32 ,  C02F1/683 ,  C02F1/722 ,  C02F1/725 ,  C02F2303/02 ,  C02F2303/18

摘要： There are provided methods for treating a fluid having an undesirable odor. The methods comprise contacting the fluid with a H2O2 basic aqueous oxidizing composition and/or with a H2O2 acidic aqueous oxidizing composition. Optionally, the fluid can be further treated by contacting it with activated carbon and/or by submitting the fluid and the composition to UV radiation when they are contacting together.

摘要翻译： 提供了用于处理具有不良气味的流体的方法。 所述方法包括使流体与H 2 O 2碱性水性氧化组合物和/或与H 2 O 2酸性含水氧化组合物接触。 任选地，流体可以通过使其与活性炭接触和/或通过将流体和组合物接触到UV辐射来进一步处理。

公开(公告)号：US11964234B2

公开(公告)日：2024-04-23

申请号：US17743611

申请日：2022-05-13

申请人： EXP SERVICES INC.

发明人： Martin Beaulieu ,  Stéphane Chabot ,  Yves Charest

IPC分类号： A61L9/00 ,  A61L9/14 ,  A61L9/16 ,  A61L9/20 ,  B01D47/06 ,  B01D53/04 ,  B01D53/44 ,  B01D53/78 ,  B01J8/00 ,  C02F1/72 ,  C09K3/00 ,  C02F1/28 ,  C02F1/32 ,  C02F1/68

CPC分类号： B01D53/78 ,  A61L9/00 ,  A61L9/145 ,  A61L9/16 ,  A61L9/20 ,  B01D53/04 ,  B01D53/44 ,  C02F1/722 ,  C02F1/725 ,  B01D2251/106 ,  B01D2251/304 ,  B01D2251/604 ,  B01D2251/70 ,  B01D2251/902 ,  B01D2253/102 ,  B01D2257/90 ,  B01D2258/06 ,  C02F1/283 ,  C02F1/32 ,  C02F1/683 ,  C02F2303/02 ,  C02F2303/18

摘要： There are provided methods for treating a gas having an undesirable odor. The methods comprise contacting the gas with an acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal; a sequestering agent; and H2O2 and submitting the gas and the composition to UV radiation when the gas and the composition are contacting each other, wherein the treatment permits to reduce by at least 60% intensity of the undesirable odor.