公开(公告)号：US5607657A

公开(公告)日：1997-03-04

申请号：US341605

申请日：1995-02-14

申请人： Andre Philippe ,  Jean Nougayrede ,  Georges Kvasnikoff

发明人： Andre Philippe ,  Jean Nougayrede ,  Georges Kvasnikoff

IPC分类号： B01D53/48 ,  B01D53/86 ,  B01J23/16 ,  B01J23/38 ,  B01J23/70 ,  B01J23/88 ,  C01B17/04 ,  C01B17/02

CPC分类号： B01D53/8603 ,  B01D53/8612 ,  C01B17/0456 ,  C01B17/0469 ,  Y02P20/584

摘要： A process is disclosed for the removal of sulphur compounds from a residual gas so as to obtain a purified gas stream substantially free of sulphur compounds, which process comprises subjecting the residual gas to a combined hydrogenation and hydrolysis, cooling the gas to a temperature whereby water vapor in the gas is not condensed, mixing the gaseous effluent with a gas containing free oxygen, contacting the cooled gaseous effluent and the gas containing free oxygen with a catalyst for selective oxidation of H.sub.2 S to sulphur, and depositing substantially all of the sulphur formed on the catalyst.

摘要翻译： PCT No.PCT / FR94 / 00284 Sec。 371日期：1995年2月14日 102（e）日期1995年2月14日PCT 1994年3月16日PCT公布。 公开号WO94 / 21359 日期1994年9月29日公开了从残留气体中除去硫化合物的方法，以获得基本上不含硫化合物的净化气流，该方法包括使残余气体进行组合氢化和水解，冷却气体 使气体中的水蒸汽不会冷凝，将气态流出物与含有游离氧的气体混合，将冷却的气态流出物和含游离氧的气体与用于将硫化氢选择性氧化成硫的催化剂接触并基本上全部沉积 的催化剂上形成的硫。

公开(公告)号：US4894216A

公开(公告)日：1990-01-16

申请号：US75746

申请日：1987-06-25

申请人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

发明人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

IPC分类号： C01B17/04

CPC分类号： C01B17/0456 ,  C01B17/0426 ,  Y02P20/584

摘要： Catalytic process for producing sulphur from H.sub.2 S-containing acid gas wherein the acid gas is subjected to a catalytic oxidation of CLAUS stoichiometry and to a catalytic CLAUS reaction phase with deposition of sulphur on the catalyst with periodic regeneration of the sulphur-laden catalyst and cooling of the regenerated catalyst. The gas used for the regeneration and for the cooling is tapped from the acid gas supplied to the catalytic oxidation and the gas issued from the regeneration is reintroduced into said acid gas after separation of the sulphur contained therein. The process is particularly applicable to the treatment of acid gases having a low H.sub.2 S content.

摘要翻译： PCT No.PCP / FR86 / 00367 Sec。 371日期1987年6月25日第 102（e）日期1987年6月25日PCT提交1986年10月24日PCT公布。 出版物WO87 / 02655 日期1987年5月7日。从含有H 2 S的酸性气体生产硫的催化方法，其中酸性气体进行CLAUS化学计量的催化氧化和催化CLAUS反应相，同时在催化剂上沉积硫并周期性地再生硫 - 催化剂和再生催化剂的冷却。 用于再生和冷却的气体从供给到催化氧化的酸性气体中抽出，并且在分离其中所含的硫后，从再生产生的气体再次引入所述酸性气体。 该方法特别适用于处理具有低H 2 S含量的酸性气体。

公开(公告)号：US6017507A

公开(公告)日：2000-01-25

申请号：US860581

申请日：1997-08-25

申请人： Jean Nougayrede ,  Andre Philippe ,  Sabine Savin-Poncet

发明人： Jean Nougayrede ,  Andre Philippe ,  Sabine Savin-Poncet

IPC分类号： B01D53/86 ,  C01B17/04

CPC分类号： B01D53/8612 ,  C01B17/0456 ,  C01B17/0469 ,  Y10S423/06

摘要： A process is provided for reducing the amount of hydrogen sulfide present in a tail gas from a sulfur recovery process. The hydrogen sulfide contaminated gas along with a gas containing free oxygen is passed through a series of hydrogen sulfide oxidation zones containing an oxidation catalyst, such as one or more oxides or salts of Ni, Co, Fe, Cu, Ag, Mn, Mo, Cr, W and V, deposited on a support, such as bauxite, activated alumina, titania and activated carbon. The initial and intermediate catalyst beds are operated adiabatically by injecting a substoichiometric amount of oxygen into the gas to be treated with respect to the amount of hydrogen sulfide present in the gas so that the temperature does not exceed 150.degree. C. The final catalyst bed is operated under conditions such that a superstoichiometric amount of oxygen is injected into the gas with respect to the hydrogen sulfide and cooling is provided so that the temperature does not exceed 150.degree. C. The invention is able to maintain an optimum selectivity toward sulfur during the catalytic oxidation of the hydrogen sulfide by controlling the temperature.

摘要翻译： PCT号PCT / FR96 / 01699秒。 371日期1997年8月25日第 102（e）中的日期1997年8月25日提交的PCT 1996年10月30日的PCT公布。 公开号WO97 / 17284 日期5月15日，提供了一种用于从硫回收方法减少尾气中存在的硫化氢的量1997年a过程。 硫化氢污染气体与含游离氧气的气体一起通过含有氧化催化剂的一系列硫化氢氧化区，例如Ni，Co，Fe，Cu，Ag，Mn，Mo， 的Cr，W和V，沉积在载体上，如矾土，活性氧化铝，二氧化钛和活性碳。 初始和中间催化剂床通过注入氧的亚化学计量量的进入气体绝热操作相对于被处理以硫化氢存在的量的气体中，以使温度不超过150℃。最终催化剂床 氧的超化学计量量被注入到所述气体相对于所述硫化氢和提供冷却，以使温度不超过150℃。本发明能够在催化期间保持朝向硫的最佳选择性这样的条件下操作 通过控制温度对硫化氢进行氧化。

公开(公告)号：US20140208998A1

公开(公告)日：2014-07-31

申请号：US14240839

申请日：2012-08-22

申请人： Jean Nougayrede ,  Soufene Maktouf

发明人： Jean Nougayrede ,  Soufene Maktouf

IPC分类号： C01B17/04 ,  F23G7/07 ,  B01D53/48

CPC分类号： C01B17/0417 ,  B01D53/346 ,  B01D53/48 ,  B01D53/52 ,  B01D2251/102 ,  B01D2251/11 ,  B01D2251/20 ,  B01D2257/30 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/306 ,  B01D2257/308 ,  B01D2259/122 ,  C01B17/0421 ,  C01B17/043 ,  F23G7/07

摘要： The invention relates to a process for advantageously efficiently treating a sulfureous combustible effluent stream by recovering the sulfur in elemental form. This process consists especially of the succession of two steps: a step of combustion of the sulfureous combustible effluent stream with an oxidant gas in excess, a step of post-combustion of the effluents from the combustion step with an acidic gas. The stream of the post-combustion effluents, free of chemical compounds that are harmful to the efficacy of the Claus catalysts, is treated in a Claus unit which performs the recovery of the sulfur in elemental form.

摘要翻译： 本发明涉及通过回收元素形式的硫来有效地有效地处理硫化可燃性流出物流的方法。 该方法特别包括以下两个步骤的连续步骤：将硫化可燃性流出物流与氧化剂气体过量的燃烧步骤，用酸性气体从燃烧步骤后处理废气的步骤。 不含有对克劳斯催化剂的功效有害的化学化合物的后燃烧流出物流在克隆装置中进行处理，该装置以元素形式回收硫。

公开(公告)号：US06444185B1

公开(公告)日：2002-09-03

申请号：US09635884

申请日：2000-08-10

申请人： Jean Nougayrede ,  André Philippe ,  Sabine Savin-Poncet

发明人： Jean Nougayrede ,  André Philippe ,  Sabine Savin-Poncet

IPC分类号： C01B1704

CPC分类号： C01B17/0456 ,  B01D53/8606 ,  B01D53/8612 ,  B01D53/8615 ,  C01B17/0469

摘要： A process is provided to recover residual H2S, SO2, COS and CS2 in the tail gas from a sulphur recovery process. The tail gas is oxidized and hydrolyzed at a temperature of from 180° C. to 700° C. to provide an oxidized and hydrolyzed gas stream containing substantially no COS or CS2 and having a concentration by volume of H2S and SO2 such that the H2S concentration minus twice the SO2 concentration is from 0.25% to 0.5%. Then the gas stream from the hydrolysis is passed over a Claus catalyst, for example based on alumina and/or titanium oxide, for the reaction of H2S with SO2 to form sulphur and provide a gas stream with substantially no SO2. The resulting gas stream from the Claus reaction together with a gas containing free oxygen is then passed over an oxidation catalyst, such as one of more oxides or salts of Ni, Co, Fe, Cu, Ag, Mn, Mo, Cr, W or V, deposited on a support, such as bauxite, activated aluminia, silica, titanium oxide, zirconium oxide, zeolite or activated carbon to form sulphur and release a purified gas stream containing substantially no sulphur compounds.

摘要翻译： 提供了一种从硫回收过程中回收尾气中残留的H 2 S，SO 2，COS和CS 2的方法。 尾气在180℃至700℃的温度下被氧化和水解，以提供基本上不含COS或CS2并具有体积浓度的H 2 S和SO 2的氧化和水解气流，使得H 2 S浓度 减去SO2浓度的两倍是0.25％至0.5％。 然后将来自水解的气流通过克劳斯催化剂，例如基于氧化铝和/或氧化钛，以使H 2 S与SO 2反应形成硫并提供基本上不含SO 2的气流。 然后将来自克劳斯反应的所得气流与含游离氧气的气体一起通过氧化催化剂，例如Ni，Co，Fe，Cu，Ag，Mn，Mo，Cr，W或更多的氧化物或其盐之一， V，沉积在载体上，例如铝土矿，活性氧化铝，二氧化硅，氧化钛，氧化锆，沸石或活性炭，以形成硫并释放基本上不含硫化合物的纯化气流。

公开(公告)号：US06372193B1

公开(公告)日：2002-04-16

申请号：US09578148

申请日：2000-05-24

申请人： Marc Ledoux ,  Jean Nougayrede ,  Cuong Pham-Huu ,  Nicolas Keller ,  Sabine Savin-Poncet ,  Claude Crouzet

发明人： Marc Ledoux ,  Jean Nougayrede ,  Cuong Pham-Huu ,  Nicolas Keller ,  Sabine Savin-Poncet ,  Claude Crouzet

IPC分类号： C01B1704

CPC分类号： B01J27/047 ,  B01D53/8612 ,  B01J27/043 ,  B01J27/224 ,  C01B17/0465 ,  Y10S502/514

摘要： A process for catalytically oxidizing H2S contained in a gas directly to sulphur containing the following steps: combining the H2S-containing gas with a gas containing free oxygen in an amount to produce an oxygen-enriched H2S-containing gas having O2/H2S molar ratio ranging from about 0.05 to about 15; and contacting the oxygen-enriched H2S-containing gas with a catalyst for selective oxidation of H2S to sulphur, wherein the catalyst includes a catalytically active phase combined with a silicon carbide-based support and wherein the active phase of the catalyst consists of at least one oxysulphide of at least one metal selected from the group consisting of iron, copper, nickel, cobalt, chromium, molybdenum and tungsten, at a temperature above the dew point of sulphur formed during H2S oxidation.

摘要翻译： 将包含在气体中的H 2 S直接催化氧化成硫的方法，其包括以下步骤：将含H 2 S的气体与含有游离氧气的气体组合，以产生具有O 2 / H 2 S摩尔比范围的富氧H 2 S的气体 约0.05至约15; 以及使所述含氧富H2S气体与用于将硫化氢选择性氧化成硫的催化剂接触，其中所述催化剂包括与碳化硅基载体结合的催化活性相，并且其中所述催化剂的活性相由至少一种 在高于硫化氢氧化期间形成的硫的露点的温度下，选自铁，铜，镍，钴，铬，钼和钨中的至少一种金属的硫代硫化物。

公开(公告)号：US5132098A

公开(公告)日：1992-07-21

申请号：US568092

申请日：1990-08-16

申请人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

发明人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

IPC分类号： B01D53/86 ,  C01B17/04

CPC分类号： C01B17/0469 ,  B01D53/8615 ,  C01B17/0456 ,  C01B17/046 ,  C01B17/0465 ,  Y02P20/584

摘要： Process for removing sulfur compounds contained in a residual gas with recovery of said compounds in the form of sulfur, wherein a gas obtained from a residual gas containing H.sub.s S and SO.sub.2 and having a temperature lower than 160.degree. C. is subjected to a catalytic CLAUS reaction phase with deposition of sulfur on the catalyst and periodic regeneration of the sulfur-laden catalyst and cooling of the regenerated catalyst. The gas brought in contact with the CLAUS catalyst is produced by subjecting the residual gas to a hydrogenation and hydrolysis treatment to provide the sulfur compounds in the unique form of H.sub.2 S and to cooling with water separation by condensation and then to catalytic oxidation of H.sub.2 S in CLAUS stoichiometry with cooling of the gas stream obtained from the oxidation step under 160.degree. C. in order to separate the sulfur by condensation. Application to the purification of the residual gases emitted by CLAUS sulfur plants.

公开(公告)号：US6083471A

公开(公告)日：2000-07-04

申请号：US875703

申请日：1997-11-19

申请人： Andre Philippe ,  Sabine Savin-Poncet ,  Jean Nougayrede ,  Marc Ledoux ,  Cuong Pham Huu ,  Claude Crouzet

发明人： Andre Philippe ,  Sabine Savin-Poncet ,  Jean Nougayrede ,  Marc Ledoux ,  Cuong Pham Huu ,  Claude Crouzet

IPC分类号： B01D53/52 ,  B01D53/86 ,  B01J27/224 ,  B01J32/00 ,  B01J37/20 ,  C01B17/04

CPC分类号： B01D53/8612 ,  B01J27/224 ,  B01J37/20 ,  C01B17/0465 ,  Y10S502/517

摘要： A process for catalytically oxidizing the H.sub.2 S present at low concentration in a gas to sulphur wherein the gas together with a gas containing free oxygen in a quantity to provide and O.sub.2 to H.sub.2 S mole ratio ranging from 0.05 to 10 are contacted with a catalyst for selectively oxidizing H.sub.2 S to sulphur, the catalyst comprising a support based on silicon carbide associated with a catalytic active phase containing at least one transition metal such as Fe, Ni, Cr, Co, Cu, Ag, Mn, Mo, Ti, W or V, in a form of a metal compound and/or in the elemental state. Prior to treating the gas, the oxidation catalyst is subjected to an activation treatment which loads the active phase of the catalyst to provide maximum sulphurization of the metal of the catalyst. In an alternate embodiment, the oxidation of the H.sub.2 S is performed below the dew point of the sulphur. In another embodiment, the oxidation is performed at a temperature above the dew point of sulphur and in particular between 200.degree. C. and 500.degree. C. Also disclosed is a catalyst for selectively oxidizing H.sub.2 S to sulphur which comprises a catalytically active phase based on at least one transition metal such as indicated above in combination with a silicon carbide support.

摘要翻译： PCT No.PCT / FR95 / 01524 Sec。 371日期：1997年11月19日 102（e）日期1997年11月19日PCT 1995年11月20日PCT PCT。 公开号WO97 / 19019 日期1997年5月29日一种催化氧化气体中硫浓度低的H 2 S的方法，其中气体与含有游离氧气的气体一起提供，O 2与H 2 S摩尔比为0.05至10，与 用于选择性地将H 2 S氧化成硫的催化剂，所述催化剂包括与包含至少一种过渡金属如Fe，Ni，Cr，Co，Cu，Ag，Mn，Mo，Ti，W的催化活性相相关的碳化硅的载体 或V，以金属化合物的形式和/或元素状态。 在处理气体之前，将氧化催化剂进行活化处理，负载催化剂的活性相以提供催化剂金属的最大硫化。 在另一个实施方案中，H2S的氧化在硫的露点之下进行。 在另一个实施方案中，氧化在高于硫的露点，特别是在200℃和500℃之间的温度下进行。还公开了一种用于选择性地将H 2 S氧化成硫的催化剂，其包含基于 至少一种过渡金属，如上所述与碳化硅载体组合。

公开(公告)号：US5077031A

公开(公告)日：1991-12-31

申请号：US465799

申请日：1990-01-12

申请人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

发明人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

IPC分类号： C01B17/04

CPC分类号： C01B17/0456 ,  C01B17/0426 ,  Y02P20/584

摘要： Catalytic process for producing sulphur from H.sub.2 S-containing acid gas wherein the acid gas is subjected to a catalytic oxidation in CLAUS stoichiometry and to a catalytic CLAUS reaction phase with deposition of sulphur on the catalyst with periodic regeneration of the sulphur-laden catalyst and cooling of the regenerated catalyst. The gas used for the regeneration and for the cooling is tapped from the acid gas supplied to the catalytic oxidation and the gas issued from the regeneration is reintroduced into said acid gas after separation of the sulphur contained therein. The process is particularly applicable to the treatment.

公开(公告)号：US4980146A

公开(公告)日：1990-12-25

申请号：US75749

申请日：1987-06-25

申请人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

发明人： Georges Kvasnikoff ,  Jean Nougayrede ,  Andre Philippe

IPC分类号： B01D53/86 ,  C01B17/04

CPC分类号： C01B17/0469 ,  B01D53/8615 ,  C01B17/0456 ,  C01B17/046 ,  C01B17/0465 ,  Y02P20/584

摘要： Process for removing sulfur compounds contained in a residual gas with recovery of said compounds in the form of sulfur, wherein a gas obtained from a residual gas containing H.sub.2 S and SO.sub.2 and having a temperature lower than 160.degree. C. is subjected to a catalytic CLAUS reaction phase with deposition of sulfur on the catalyst and periodic regeneration of the sulfur-laden catalyst and cooling of the regenerated catalyst. The gas brought in contact with the CLAUS catalyst is produced by subjecting the residual gas to a hydrogenation and hydrolysis treatment to provide the sulfur compounds in the unique form of H.sub.2 S and to cooling with water separation by condensation and then to catalytic oxidation of H.sub.2 S in CLAUS stoichiometry with cooling of the gas stream obtained from the oxidation step under 160.degree. C. in order to separate the sulfur by condensation. Application to the purification of the residual gases emitted by CLAUS sulfur plants.

摘要翻译： PCT No.PCT / FR86 / 00365 Sec。 371日期1987年6月25日第 102（e）日期1987年6月25日PCT提交1986年10月24日PCT公布。 公开号WO87 / 02653 日期：1987年5月7日。通过回收硫形式的所述化合物来除去残留气体中所含的硫化合物的方法，其中从含有H 2 S和SO 2的残余气体获得的温度低于160℃的气体为 经过催化CLAUS反应相，同时在催化剂上沉积硫并周期性地再生含硫催化剂并冷却再生催化剂。 与CLAUS催化剂接触的气体是通过使残余气体进行氢化和水解处理以提供独特形式的硫化氢的硫化合物，并通过冷凝进行水分离冷却，然后在CLAUS中催化氧化H 2 S， 通过在160℃下从氧化步骤获得的气流冷却来进行化学计量，以便通过冷凝分离硫。 应用于CLAUS硫磺植物排放的残留气体的净化。