-
公开(公告)号：US07718153B2
公开(公告)日：2010-05-18
申请号：US12122116
申请日：2008-05-16
CPC分类号： B01D53/9418 , B01D2251/202 , B01D2255/1023 , B01D2255/20715 , B01D2255/20776 , B01J21/066 , B01J23/6527 , B01J27/053 , B01J37/0009 , B01J37/0242 , B01J37/088 , F01K23/067 , Y02E20/16 , Y02E20/18
摘要： A selective catalytic reduction process with a palladium catalyst for reducing NOx in a gas, using hydrogen as a reducing agent. A zirconium sulfate (ZrO2)SO4 catalyst support material with about 0.01-2.0 wt. % Pd is applied to a catalytic bed positioned in a flow of exhaust gas at about 70-200° C. The support material may be (ZrO2—SiO2)SO4. H2O and hydrogen may be injected into the exhaust gas upstream of the catalyst to a concentration of about 15-23 vol. % H2O and a molar ratio for H2/NOx in the range of 10-100. A hydrogen-containing fuel may be synthesized in an Integrated Gasification Combined Cycle power plant for combustion in a gas turbine to produce the exhaust gas flow. A portion of the fuel may be diverted for the hydrogen injection.
摘要翻译： 使用氢作为还原剂的用于还原NO x的气体中的钯催化剂的选择性催化还原方法。 硫酸锆（ZrO 2）SO 4催化剂载体材料，其具有约0.01-2.0重量％ 将％Pd施加到位于排气流中约70-200℃的催化床上。载体材料可以是（ZrO 2 -SiO 2）SO 4。 可以将H 2 O和氢气注入到催化剂上游的排气中至约15-23体积的浓度。 ％H 2 O和H 2 / NO x在10-100的范围内的摩尔比。 可以在集成气化联合循环发电厂中合成含氢燃料，用于在燃气轮机中燃烧以产生废气流。 燃料的一部分可以被转向用于氢气注入。
-
公开(公告)号：US20090285740A1
公开(公告)日：2009-11-19
申请号：US12122116
申请日：2008-05-16
IPC分类号： B01D53/86
CPC分类号： B01D53/9418 , B01D2251/202 , B01D2255/1023 , B01D2255/20715 , B01D2255/20776 , B01J21/066 , B01J23/6527 , B01J27/053 , B01J37/0009 , B01J37/0242 , B01J37/088 , F01K23/067 , Y02E20/16 , Y02E20/18
摘要： A selective catalytic reduction process with a palladium catalyst for reducing NOx in a gas, using hydrogen as a reducing agent. A zirconium sulfate (ZrO2)SO4 catalyst support material with about 0.01-2.0 wt. % Pd is applied to a catalytic bed positioned in a flow of exhaust gas at about 70-200° C. The support material may be (ZrO2—SiO2)SO4. H2O and hydrogen may be injected into the exhaust gas upstream of the catalyst to a concentration of about 15-23 vol. % H2O and a molar ratio for H2/NOx in the range of 10-100. A hydrogen-containing fuel may be synthesized in an Integrated Gasification Combined Cycle power plant for combustion in a gas turbine to produce the exhaust gas flow. A portion of the fuel may be diverted for the hydrogen injection.
摘要翻译： 使用氢作为还原剂的用于还原NO x的气体中的钯催化剂的选择性催化还原方法。 硫酸锆（ZrO 2）SO 4催化剂载体材料，其具有约0.01-2.0重量％ 将％Pd施加到位于排气流中约70-200℃的催化床上。载体材料可以是（ZrO 2 -SiO 2）SO 4。 可以将H 2 O和氢气注入到催化剂上游的排气中至约15-23体积的浓度。 ％H 2 O和H 2 / NO x在10-100的范围内的摩尔比。 可以在集成气化联合循环发电厂中合成含氢燃料，用于在燃气轮机中燃烧以产生废气流。 燃料的一部分可以被转向用于氢气注入。
-
13.发明授权Selective catalytic reduction system and process using a pre-sulfated zirconia binder 有权选择性催化还原系统和使用预硫酸化氧化锆粘合剂的方法公开(公告)号：US07744840B2
公开(公告)日：2010-06-29
申请号：US12472633
申请日：2009-05-27
CPC分类号： B01D53/9418 , B01D53/8625 , B01D2251/202 , B01D2255/1023 , B01D2255/20715 , Y02C20/10
摘要： A selective catalytic reduction (SCR) process with a palladium catalyst for reducing NOx in a gas, using hydrogen as a reducing agent is provided. The process comprises contacting the gas stream with a catalyst system, the catalyst system comprising (ZrO2)SO4, palladium, and a pre-sulfated zirconia binder. The inclusion of a pre-sulfated zirconia binder substantially increases the durability of a Pd-based SCR catalyst system. A system for implementing the disclosed process is further provided.
摘要翻译： 提供了使用氢作为还原剂的用于还原NO x的钯催化剂的选择性催化还原（SCR）方法。 该方法包括使气流与催化剂体系接触，所述催化剂体系包含（ZrO 2）SO 4，钯和预硫酸化氧化锆粘合剂。 包含预硫酸化氧化锆粘合剂显着增加了Pd基SCR催化剂体系的耐久性。 还提供了用于实现所公开的处理的系统。
-
14.发明申请SYSTEM AND METHOD FOR SELECTIVE CATALYTIC REDUCTION OF NITROGEN OXIDES IN COMBUSTION EXHAUST GASES 有权用于选择性催化还原硝化氧化物在排气中的系统和方法公开(公告)号：US20080299016A1
公开(公告)日：2008-12-04
申请号：US12122093
申请日：2008-05-16
CPC分类号： B01D53/8643 , B01D53/8625 , B01D53/90 , B01D53/9477 , B01D2251/202 , B01D2251/2062 , B01D2255/102 , B01D2255/1023 , B01D2255/20 , B01D2255/50 , C10J3/00 , C10J3/466 , C10J2300/093 , C10J2300/095 , C10J2300/0959 , C10J2300/165 , C10J2300/1668 , C10J2300/1678 , C10J2300/1846 , F23J15/02 , F23J2215/101 , F23J2219/10
摘要： A multi-stage selective catalytic reduction (SCR) unit (32) provides efficient reduction of NOx and other pollutants from about 50-550° C. in a power plant (19). Hydrogen (24) and ammonia (29) are variably supplied to the SCR unit depending on temperature. An upstream portion (34) of the SCR unit catalyzes NOx+NH3 reactions above about 200° C. A downstream portion (36) catalyzes NOx+H2 reactions below about 260° C., and catalyzes oxidation of NH3, CO, and VOCs with oxygen in the exhaust above about 200° C., efficiently removing NOx and other pollutants over a range of conditions with low slippage of NH3. An ammonia synthesis unit (28) may be connected to the SCR unit to provide NH3 as needed, avoiding transport and storage of ammonia or urea at the site. A carbonaceous gasification plant (18) on site may supply hydrogen and nitrogen to the ammonia synthesis unit, and hydrogen to the SCR unit.
摘要翻译： 多级选择性催化还原（SCR）单元（32）在发电厂（19）中提供了大约50-550℃的NOx和其它污染物的有效还原。 氢（24）和氨（29）根据温度可变地供应到SCR单元。 SCR单元的上游部分（34）催化高于约200℃的NOx + NH 3反应。下游部分（36）催化低于约260℃的NOx + H 2反应，并催化NH 3，CO和VOC的氧化， 废气中的氧气高于约200℃，有效地在低氮NH3的条件下有效地除去NOx和其他污染物。 氨合成单元（28）可以连接到SCR单元以根据需要提供NH 3，避免在现场运输和储存氨或尿素。 现场的碳质气化设备（18）可向氨合成装置供应氢气和氮气，向SCR装置供应氢气。
-
公开(公告)号：US07390471B2
公开(公告)日：2008-06-24
申请号：US11282036
申请日：2005-11-17
CPC分类号： B01D53/865 , B01D53/9477 , B01D2251/2062 , B01D2255/1021 , B01D2255/1023 , B01D2255/20723 , B01D2255/20761
摘要： An exhaust gas treatment apparatus (20) for reducing the concentration of NOx, HC and CO in an exhaust gas stream (18) such as produced by a gas turbine engine (12) of a power generating station (10). The treatment apparatus includes a multifunction catalytic element (26) having an upstream reducing-only portion (28) and a downstream reducing-plus-oxidizing portion (30) that is located downstream of an ammonia injection apparatus (24). The selective catalytic reduction (SCR) of NOx is promoted in the upstream portion of the catalytic element by the injection of ammonia in excess of the stoichiometric concentration, with the resulting ammonia slip being oxidized in the downstream portion of the catalytic element. Any additional NOx generated by the oxidation of the ammonia is further reduced in the downstream portion before being passed to the atmosphere (22).
摘要翻译： 一种排气处理装置（20），用于减少由发电站的燃气涡轮发动机（12）产生的废气流（18）中的NO x，HC和CO的浓度， （10）。 处理装置包括具有位于氨注入装置（24）的下游的具有上游侧还原部（28）的下游侧还原加氧化部（30）的多功能催化元件（26）。 通过注入超过化学计量浓度的氨，在催化元件的上游部分促进了NO x x的选择性催化还原（SCR），导致的氨滑动在下游部分被氧化 的催化元素。 通过氨的氧化产生的任何附加的NO x x在进入大气（22）之前，在下游部分进一步减少。
-
16.发明授权System and method for selective catalytic reduction of nitrogen oxides in combustion exhaust gases 有权用于选择性催化还原燃烧废气中氮氧化物的系统和方法公开(公告)号：US08691170B2
公开(公告)日：2014-04-08
申请号：US12122093
申请日：2008-05-16
CPC分类号： B01D53/8643 , B01D53/8625 , B01D53/90 , B01D53/9477 , B01D2251/202 , B01D2251/2062 , B01D2255/102 , B01D2255/1023 , B01D2255/20 , B01D2255/50 , C10J3/00 , C10J3/466 , C10J2300/093 , C10J2300/095 , C10J2300/0959 , C10J2300/165 , C10J2300/1668 , C10J2300/1678 , C10J2300/1846 , F23J15/02 , F23J2215/101 , F23J2219/10
摘要： A multi-stage selective catalytic reduction (SCR) unit (32) provides efficient reduction of NOx and other pollutants from about 50-550° C. in a power plant (19). Hydrogen (24) and ammonia (29) are variably supplied to the SCR unit depending on temperature. An upstream portion (34) of the SCR unit catalyzes NOx+NH3 reactions above about 200° C. A downstream portion (36) catalyzes NOx+H2 reactions below about 260° C., and catalyzes oxidation of NH3, CO, and VOCs with oxygen in the exhaust above about 200° C., efficiently removing NOx and other pollutants over a range of conditions with low slippage of NH3. An ammonia synthesis unit (28) may be connected to the SCR unit to provide NH3 as needed, avoiding transport and storage of ammonia or urea at the site. A carbonaceous gasification plant (18) on site may supply hydrogen and nitrogen to the ammonia synthesis unit, and hydrogen to the SCR unit.
摘要翻译： 多级选择性催化还原（SCR）单元（32）在发电厂（19）中提供了大约50-550℃的NOx和其它污染物的有效还原。 氢（24）和氨（29）根据温度可变地供应到SCR单元。 SCR单元的上游部分（34）催化高于约200℃的NOx + NH 3反应。下游部分（36）催化低于约260℃的NOx + H 2反应，并催化NH 3，CO和VOC的氧化， 废气中的氧气高于约200℃，有效地在低氮NH3的条件下有效地除去NOx和其他污染物。 氨合成单元（28）可以连接到SCR单元以根据需要提供NH 3，避免在现场运输和储存氨或尿素。 现场的碳质气化设备（18）可向氨合成装置供应氢气和氮气，向SCR装置供应氢气。
-
17.发明授权Selective catalytic reduction system and process for control of NOx emissions in a sulfur-containing gas stream 有权选择性催化还原系统和控制含硫气流中NOx排放的方法公开(公告)号：US09101877B2
公开(公告)日：2015-08-11
申请号：US13453013
申请日：2012-04-23
申请人： Anatoly Sobolevskiy
发明人： Anatoly Sobolevskiy
IPC分类号： F02C3/00 , B01J23/652 , B01D53/58 , B01D53/86 , B01J35/00 , B01J23/22 , B01J23/28 , B01J23/30 , F02C3/28 , B01D53/94
CPC分类号： B01D53/8628 , B01D53/9418 , B01D53/9472 , B01D2251/2062 , B01D2255/1021 , B01D2255/1023 , B01D2255/20707 , B01D2255/20723 , B01D2255/20776 , B01D2255/30 , B01D2255/9032 , B01J23/22 , B01J23/28 , B01J23/30 , B01J23/6527 , B01J35/0006 , C10J2300/165 , C10J2300/1653 , F02C3/28 , F05D2220/722 , Y02E20/16 , Y02E20/18 , Y02P20/52
摘要： An exhaust gas treatment process, apparatus, and system for reducing the concentration of NOx, CO and hydrocarbons in a gas stream, such as an exhaust stream (29), via selective catalytic reduction with ammonia is provided. The process, apparatus and system include a catalytic bed (32) having a reducing only catalyst portion (34) and a downstream reducing-plus-oxidizing portion (36). Each portion (34, 36) includes an amount of tungsten. The reducing-plus-oxidizing catalyst portion (36) advantageously includes a greater amount of tungsten than the reducing catalyst portion (36) to markedly limit ammonia salt formation.
摘要翻译： 提供了一种废气处理方法，装置和系统，用于通过氨的选择性催化还原来减少气流（例如排气流29）中的NOx，CO和烃的浓度。 该方法，装置和系统包括具有仅还原催化剂部分（34）和下游还原加氧化部分（36）的催化床（32）。 每个部分（34,36）包括一定量的钨。 还原加氧化催化剂部分（36）有利地包括比还原催化剂部分（36）更大量的钨，以显着限制氨盐形成。
-
公开(公告)号：US20070110643A1
公开(公告)日：2007-05-17
申请号：US11282036
申请日：2005-11-17
申请人： Anatoly Sobolevskiy , Joseph Rossin
发明人： Anatoly Sobolevskiy , Joseph Rossin
CPC分类号： B01D53/865 , B01D53/9477 , B01D2251/2062 , B01D2255/1021 , B01D2255/1023 , B01D2255/20723 , B01D2255/20761
摘要： An exhaust gas treatment apparatus (20) for reducing the concentration of NOx, HC and CO in an exhaust gas stream (18) such as produced by a gas turbine engine (12) of a power generating station (10). The treatment apparatus includes a multifunction catalytic element (26) having an upstream reducing-only portion (28) and a downstream reducing-plus-oxidizing portion (30) that is located downstream of an ammonia injection apparatus (24). The selective catalytic reduction (SCR) of NOx is promoted in the upstream portion of the catalytic element by the injection of ammonia in excess of the stoichiometric concentration, with the resulting ammonia slip being oxidized in the downstream portion of the catalytic element. Any additional NOx generated by the oxidation of the ammonia is further reduced in the downstream portion before being passed to the atmosphere (22).
摘要翻译： 一种排气处理装置（20），用于减少由发电站的燃气涡轮发动机（12）产生的废气流（18）中的NO x，HC和CO的浓度， （10）。 处理装置包括具有位于氨注入装置（24）的下游的具有上游侧还原部（28）的下游侧还原加氧化部（30）的多功能催化元件（26）。 通过注入超过化学计量浓度的氨，在催化元件的上游部分促进了NO x x的选择性催化还原（SCR），导致的氨滑动在下游部分被氧化 的催化元素。 通过氨的氧化产生的任何附加的NO x x在进入大气（22）之前，在下游部分进一步减少。
-
公开(公告)号：US08790609B1
公开(公告)日：2014-07-29
申请号：US13928461
申请日：2013-06-27
申请人： Anatoly Sobolevskiy
发明人： Anatoly Sobolevskiy
IPC分类号： C01B21/24
CPC分类号： B01D53/565 , B01D53/62 , B01D53/72 , B01D53/8625 , B01D53/864 , B01D2251/204 , B01D2251/208 , B01D2255/1021 , B01D2257/404 , B01D2257/502 , B01D2257/702 , B01D2258/0283
摘要： A process for reducing nitrogen dioxide (NO2) to nitric oxide (NO) in a NO2-containing gaseous stream is provided. The process includes contacting the gaseous stream (12) with a catalyst system (28) comprising a catalyst selected from a platinum group metal. The contacting is done in the presence of carbon monoxide (22) and an organic compound (24), which synergistically improves NO2 reduction efficiency, particularly at low operating temperatures.
摘要翻译： 提供了一种在含NO 2的气流中还原二氧化氮（NO2）至一氧化氮（NO）的方法。 该方法包括使气流（12）与包含选自铂族金属的催化剂的催化剂体系（28）接触。 在一氧化碳（22）和有机化合物（24）的存在下进行接触，其协同地改善NO 2还原效率，特别是在低操作温度下。
-
20.发明申请SELECTIVE CATALYTIC REDUCTION SYSTEM AND PROCESS FOR CONTROL OF NOx EMISSIONS IN A SULFUR-CONTAINING GAS STREAM 有权选择性催化还原系统和控制含硫气流中氮氧化物排放的方法公开(公告)号：US20130205743A1
公开(公告)日：2013-08-15
申请号：US13453013
申请日：2012-04-23
申请人： Anatoly Sobolevskiy
发明人： Anatoly Sobolevskiy
IPC分类号： F01N3/10 , F02C3/00 , B01J23/652 , B01D53/58 , B01J23/30
CPC分类号： B01D53/8628 , B01D53/9418 , B01D53/9472 , B01D2251/2062 , B01D2255/1021 , B01D2255/1023 , B01D2255/20707 , B01D2255/20723 , B01D2255/20776 , B01D2255/30 , B01D2255/9032 , B01J23/22 , B01J23/28 , B01J23/30 , B01J23/6527 , B01J35/0006 , C10J2300/165 , C10J2300/1653 , F02C3/28 , F05D2220/722 , Y02E20/16 , Y02E20/18 , Y02P20/52
摘要： An exhaust gas treatment process, apparatus, and system for reducing the concentration of NOx, CO and hydrocarbons in a gas stream, such as an exhaust stream (29), via selective catalytic reduction with ammonia is provided. The process, apparatus and system include a catalytic bed (32) having a reducing only catalyst portion (34) and a downstream reducing-plus-oxidizing portion (36). Each portion (34, 36) includes an amount of tungsten. The reducing-plus-oxidizing catalyst portion (36) advantageously includes a greater amount of tungsten than the reducing catalyst portion (36) to markedly limit ammonia salt formation.
摘要翻译： 提供了一种废气处理方法，装置和系统，用于通过氨的选择性催化还原来减少气流（例如排气流29）中的NOx，CO和烃的浓度。 该方法，装置和系统包括具有仅还原催化剂部分（34）和下游还原加氧化部分（36）的催化床（32）。 每个部分（34,36）包括一定量的钨。 还原加氧化催化剂部分（36）有利地包括比还原催化剂部分（36）更大量的钨，以显着限制氨盐形成。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.022 秒)
