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公开(公告)号：US20060141414A1
公开(公告)日：2006-06-29
申请号：US11362148
申请日：2006-02-27
申请人： Masahiro Harada , Makoto Susaki , Kazuo Ishida , Hajime Nagano , Masahiro Hirano , Hiroshi Suzumura , Shintaro Honjo , Yoshinori Koyama , Katsuhiko Yokohama , Mitsugi Suehiro
发明人： Masahiro Harada , Makoto Susaki , Kazuo Ishida , Hajime Nagano , Masahiro Hirano , Hiroshi Suzumura , Shintaro Honjo , Yoshinori Koyama , Katsuhiko Yokohama , Mitsugi Suehiro
IPC分类号： F23D14/62
CPC分类号： B01D53/58 , B01D53/52 , F23G7/065 , F23J7/00 , F23J15/006 , F23J2215/10 , Y02P20/129
摘要： A gas combustion treatment method for the combustion treatment of an ammonia-containing gas and a hydrogen sulfide-containing gas, the method comprising a first combustion treatment step in which the ammonia-containing gas, together with a fuel, is introduced and burned; a nitrogen oxide reduction step downstream of the first combustion treatment step, in which a portion of the hydrogen sulfide-containing gas or the ammonia-containing gas is introduced and the nitrogen oxides produced in the first combustion treatment step are reduced in a reducing atmosphere; and a second combustion treatment step downstream of the nitrogen oxide reduction step, in which the remaining hydrogen sulfide-containing gas, together with air, is introduced and burned. The present invention provides a combustion apparatus suitable for use as a combustion furnace for off-gases resulting from the wet purification of coal gasification gas.
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公开(公告)号：US4994257A
公开(公告)日：1991-02-19
申请号：US41868
申请日：1987-04-23
申请人： Mitsugi Suehiro , Toshikuni Sera , Kenji Inoue , Akira Shimada
发明人： Mitsugi Suehiro , Toshikuni Sera , Kenji Inoue , Akira Shimada
CPC分类号： C10K1/20 , C01B17/52 , C01B3/56 , C01B2203/043 , C01B2203/0485
摘要： The present invention is directed to a method for purifying a high-temperature reducing gas by continuously circulating the processes of reducing a regenerated absorbent with the high-temperature reducing gas, until concentrations of aimed reducing gases have become uniform on upstream and downstream sides of the absorbent, and absorbing sulfur compounds by the use of this absorbent and thereby removing these sulfur compounds therefrom; the aforesaid method being characterized by using at least three reactors filled with the absorbent, by consisting of the four steps of reduction, absorption, SO.sub.2 reduction and regeneration, and by comprising the steps of feeding a circulating gas from the regenerating step to the SO.sub.2 reducing step; converting an SO.sub.2 gas produced in the regenerating step and the SO.sub.2 reducing step into elemental sulfur and recovering the latter as liquid sulfur; and introducing a part of the SO.sub.2 gas into the reducing step and returning the remaining SO.sub.2 gas to the regenerating step.
摘要翻译： 本发明涉及一种通过连续循环利用高温还原气体还原再生吸收剂的方法来提纯高温还原气体的方法，直到目标还原气体的浓度在上游和下游侧变得均匀 通过使用该吸收剂吸收和吸收硫化合物，从而从其中除去这些硫化合物; 上述方法的特征在于使用至少三个填充有吸收剂的反应器，通过还原，吸收，SO2还原和再生的四个步骤组成，并且包括以下步骤：将循环气体从再生步骤进料到SO 2还原 步; 将再生步骤中产生的SO 2气体和SO 2还原步骤转化为元素硫，并将其回收为液态硫; 并将一部分SO 2气体引入到还原步骤中并将剩余的SO 2气体返回到再生步骤。
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公开(公告)号：US5464604A
公开(公告)日：1995-11-07
申请号：US234716
申请日：1994-04-28
申请人： Mitsugi Suehiro , Toru Seto , Shigeaki Mitsuoka , Kenji Inoue
发明人： Mitsugi Suehiro , Toru Seto , Shigeaki Mitsuoka , Kenji Inoue
CPC分类号： C10K3/00 , C01B17/0473 , C10K1/20
摘要： Disclosed are, in a method for purifying a high-temperature reducing gas in which sulfur compounds present in a high-temperature reducing gas are absorbed and removed by an absorbent according to a dry method, a method for purifying a high-temperature reducing gas which is characterized in that a reducing gas is supplied into a gas containing sulfur dioxide gas which is discharged from a regeneration system for regenerating the absorbent which system forms a system together with an absorption system in which the sulfur compounds are absorbed with the absorbent, a resulting gas mixture is led through a reactor filled with a catalyst, the sulfur dioxide gas and the reducing gas are let react with each other under pressurization so that elemental sulfur is directly produced and recovered as liquid sulfur; and the above method which is further characterized in that catalyst layers in the reactor in which the sulfur dioxide gas and the reducing gas react with each other are divided into parts or made to have a plurality of stages, a heat exchanger and a sulfur condenser are disposed between these parts or stages, and the temperature control of these gases and the removal of sulfur produced in the reaction are carried out during the reaction.
摘要翻译： 本发明提供一种纯化高温还原气体的方法，其中高温还原气体中存在的硫化合物根据干法吸收并被吸收剂除去， 其特征在于，将还原气体供给到从再生系统排出的二氧化硫气体中，所述再生系统用于再生吸收剂，该系统与其中硫化合物与吸收剂一起吸收的吸收系统一起形成系统， 气体混合物通过填充有催化剂的反应器引导，二氧化硫气体和还原气体在加压下彼此反应，使得元素硫直接生成并回收为液体硫; 上述方法的特征还在于，将二氧化硫气体和还原气体相互反应的反应器中的催化剂层分成多个部分，或者制成多级，热交换器和硫冷凝器 设置在这些部件或级之间，并且在反应期间进行这些气体的温度控制和反应中产生的硫的去除。
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公开(公告)号：US5427752A
公开(公告)日：1995-06-27
申请号：US073652
申请日：1993-06-07
IPC分类号： B01D53/14 , B01D53/48 , B01D53/52 , C01B17/04 , C01B17/50 , C10J3/72 , C10K1/20 , C10K1/32 , C10K1/26 , C10K1/28
CPC分类号： B01D53/485 , B01D53/52 , C01B17/0408 , C01B17/508 , C10K1/20 , Y02P20/133
摘要： A process for purifying high-temperature reducing gases containing sulfureous contaminants including hydrogen sulfide and carbonyl sulfide with an absorbent, said process characterized in that at least three reactor towers which are filled with an absorbent are used, and said process comprises the three steps of absorption, regeneration, and reduction, and during in a part of operation two reactor towers are connected in series so as to carry out regeneration, and O.sub.2 concentration can be controlled separately for each regenerating reactor tower in the regeneration step, and steam can be supplied so as to prevent excessive reduction of the absorbent from occurring in the reduction step. The life of the absorbent can be extended and operational costs may be reduced.
摘要翻译： 一种用吸收剂净化包含硫化氢和羰基硫化物的含硫污染物的高温还原气体的方法，所述方法的特征在于，使用填充有吸收剂的至少三个反应器塔，所述方法包括三个步骤的吸收 ，再生和还原，并且在操作的一部分期间，两个反应器塔串联连接以进行再生，并且在再生步骤中可以分别对每个再生反应塔进行O2浓度控制，并且可以供应蒸汽 以防止在还原步骤中发生吸收剂的过度减少。 吸收剂的寿命可以延长，并且可以降低操作成本。
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公开(公告)号：US5154900A
公开(公告)日：1992-10-13
申请号：US721912
申请日：1991-06-20
申请人： Toshio Nakayama , Hiromi Shirai , Makoto Kobayashi , Mitsugi Suehiro , Toru Seto , Shigeaki Mitsuoka , Kenji Inoue
发明人： Toshio Nakayama , Hiromi Shirai , Makoto Kobayashi , Mitsugi Suehiro , Toru Seto , Shigeaki Mitsuoka , Kenji Inoue
CPC分类号： C10K1/20 , B01D53/04 , B01D2257/30 , B01D2257/304 , B01D2259/40064 , B01D2259/404
摘要： In a method for absorbing and removing sulfur compounds such as hydrogen sulfide and carbonyl sulfide present in a high-temperature reducing gas using an absorbent,disclosed is a method for purifying a high-temperature reducing gas which is characterized in that: said method uses at least four towers of reactors filled with an absorbent and comprises four steps which are an absorption step for absorbing and removing sulfur compounds with an absorbent, a regeneration step for regenerating said absorbent using a gas containing oxygen, a cooling step after the regeneration step, and a reduction step for reducing said regenerated and cooled absorbent with a high-temperature reducing gas until the concentration of the reducing gas becomes uniform before and after passing through the absorbent; heat is continuously recovered from the high-temperature gas at the outlet of the regeneration reactor in said regeneration step; and the regeneration and absorption performance is thus stabilized.Also disclosed is a method for purifying a high-temperature reducing gas which is characterized in that this method uses as least four towers filled with an absorbent as in the above method; and an additional preliminary regeneration step is provided besides the above four steps in order to make possible a smooth operation when switching to the regeneration step and the continuous recovery of sulfur.
摘要翻译： 在使用吸收剂吸收除去存在于高温还原气体中的硫化氢，硫化氢等硫化合物和硫化氢的方法中，公开了一种高温还原气体的净化方法，其特征在于： 至少四个装有吸收剂的塔的反应堆，包括作为用吸收剂吸收和除去硫化合物的吸收步骤的四个步骤，用于使用含氧气体再生所述吸收剂的再生步骤，再生步骤之后的冷却步骤，以及 还原步骤，用于通过高温还原气体还原所述再生和冷却的吸收剂，直到还原气体的浓度在通过吸收剂之前和之后变得均匀; 在所述再生步骤中，从再生反应器出口处的高温气体连续回收热量; 从而使再生吸收性能稳定。 还公开了一种净化高温还原气体的方法，其特征在于，如上述方法那样，该方法使用填充有吸收剂的至少四个塔; 并且除了上述四个步骤之外还提供了另外的预备再生步骤，以便在切换到再生步骤和硫的连续回收时可以平稳地操作。
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公开(公告)号：US07005115B2
公开(公告)日：2006-02-28
申请号：US10245326
申请日：2002-09-18
申请人： Masahiro Harada , Makoto Susaki , Kazuo Ishida , Hajime Nagano , Masahiro Hirano , Hiroshi Suzumura , Shintaro Honjo , Yoshinori Koyama , Katsuhiko Yokohama , Mitsugi Suehiro
发明人： Masahiro Harada , Makoto Susaki , Kazuo Ishida , Hajime Nagano , Masahiro Hirano , Hiroshi Suzumura , Shintaro Honjo , Yoshinori Koyama , Katsuhiko Yokohama , Mitsugi Suehiro
CPC分类号： B01D53/58 , B01D53/52 , F23G7/065 , F23J7/00 , F23J15/006 , F23J2215/10
摘要： A gas combustion treatment method for the combustion treatment of an ammonia-containing gas and a hydrogen sulfide-containing gas, the method comprising a first combustion treatment step in which the ammonia-containing gas, together with a fuel, is introduced and burned; a nitrogen oxide reduction step downstream of the first combustion treatment step, in which a portion of the hydrogen sulfide-containing gas or the ammonia-containing gas is introduced and the nitrogen oxides produced in the first combustion treatment step are reduced in a reducing atmosphere; and a second combustion treatment step downstream of the nitrogen oxide reduction step, in which the remaining hydrogen sulfide-containing gas, together with air, is introduced and burned. The present invention provides a combustion apparatus suitable for use as a combustion furnace for off-gases resulting from the wet purification of coal gasification gas.
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