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1. 发明申请

WO2012068336A1 BACK-UP CONFIGURATIONS AND METHODS FOR SULFURIC ACID PLANTS 审中-公开
标题翻译：硫酸厂的后备配置和方法
公开(公告)号：WO2012068336A1
公开(公告)日：2012-05-24
申请号：PCT/US2011/061131
申请日：2011-11-17
申请人： FLUOR TECHNOLOGIES CORPORATION , RAVIKUMAR, Ravi , BAZATA, Richard
发明人： RAVIKUMAR, Ravi , BAZATA, Richard
IPC分类号： B01D53/50
CPC分类号： B01D53/1412 , B01D53/1481 , B01D53/30 , B01D53/507 , B01D2252/204 , B01D2257/304 , B01D2257/504 , C01B17/60 , C01B17/76 , Y02P20/129 , Y02P20/152
摘要： A sulfuric acid production plant has a discontinuously operating back-up absorber to allow for sulfur emission control in situations where part of or even the entire sulfuric acid production plant is shut down, inoperable, or otherwise compromised. The back-up absorber receives lean solvent from a storage tank that is configured such that continuous operation of the back-up absorber is possible for several hours.
摘要翻译：硫酸生产厂有一个不连续运行的备用吸收器，以便在部分或甚至整个硫酸生产装置关闭，不能工作或以其他方式损害的情况下进行硫磺排放控制。备用吸收器接收来自储罐的贫溶剂，该储罐设置成使得备用吸收器可以连续运行几个小时。

2. 发明申请

WO98042618A1 SAFE STORAGE AND TRANSPORTATION OF SULFUR DIOXIDE 审中-公开
标题翻译：硫化二氧化硫的安全储存和运输
公开(公告)号：WO98042618A1
公开(公告)日：1998-10-01
申请号：PCT/CA1998/000237
申请日：1998-03-16
IPC分类号： B01D53/14 , C01B17/48 , C01B17/56 , C01B17/60 , B01D53/50
CPC分类号： C01B17/48 , B01D53/1481 , C01B17/56 , C01B17/60 , Y02A50/2349
摘要： The invention relates to a method of confining sulfur dioxide for storage or transportation under safe conditions. The method of the invention comprises the steps of (a) contacting a sulfur dioxide-containing gas stream with an absorbing medium comprising water and a water-soluble amine absorbent having at least one amine group with a pKa value greater than about 7 and at least one other amine group with a pKa value less than about 6.5 so that the at least one amine group with a pKa value greater than about 7 irreversibly absorbs sulfur dioxide in salt form rendering the amine absorbent non-volatile and the at least one other amine group with a pKa value less than about 6.5 reversibly absorbs sulfur dioxide, to thereby saturate the absorbing medium with sulfur dioxide against a partial pressure of sulfur dioxide of no more than about 1 atmosphere at 25 DEG C; and (b) charging the absorbing medium saturated with sulfur dioxide obtained in step (a) into a container for storage or transportation.
摘要翻译：本发明涉及一种将二氧化硫限制在安全条件下储存或运输的方法。本发明的方法包括以下步骤：（a）使含二氧化硫的气流与包含水的吸收介质和具有pKa值大于约7的至少一个胺基的水溶性胺吸收剂接触，并且至少 pKa值小于约6.5的另一个胺基，使得pKa值大于约7的至少一个胺基不可逆地吸收盐形式的二氧化硫，使得胺吸收剂不挥发和至少一种其它胺基 pKa值小于约6.5可逆地吸收二氧化硫，从而使二氧化硫的吸收介质在25℃下对二氧化硫分压不超过约1个大气饱和; 和（b）将步骤（a）中获得的二氧化硫饱和的吸收介质装入用于储存或运输的容器中。

3. 发明申请

WO1986007546A1 PROCESS FOR THE RECOVERY AND UTILIZATION OF SULPHUR DIOXIDE CONTAINED IN SULPHUROUS GASES, SUCH AS FLUE GASES 审中-公开
标题翻译：用于恢复和利用含硫气体（如气体气体）中的二氧化硫的方法
公开(公告)号：WO1986007546A1
公开(公告)日：1986-12-31
申请号：PCT/FI1986000063
申请日：1986-06-17
申请人： CATENA OY , SARKKINEN, Veli
发明人： CATENA OY
IPC分类号： B01D53/14
CPC分类号： B01D53/501 , C01B17/60
摘要： The sulphur dioxide contained in the gas is absorbed in a saturated or almost saturated aqueous potassium sulfite (K2SO3) solution, and the absorption is continued until the solution is saturated with potassium bisulfite. The crystallized potassium bisulfite is separated from the solution and subjected to heat treatment at about 200 C. The potassium sulfate obtained may be widely used, e.g. for the preparation of fertilizers.
摘要翻译：气体中所含的二氧化硫被吸收在饱和或几乎饱和的亚硫酸钾（K 2 SO 3）溶液中，继续吸收，直至溶液用亚硫酸氢钾饱和。将结晶的亚硫酸氢钾与溶液分离，并在约200℃进行热处理。获得的硫酸钾可以被广泛使用，例如用于化肥的制备。

4. 发明申请

WO1979000251A1 ADSORBENT REGENERATION AND GAS SEPARATION UTILIZING DIELECTRIC HEATING 审中-公开
标题翻译：吸附再生和气体分离利用电介质加热
公开(公告)号：WO1979000251A1
公开(公告)日：1979-05-17
申请号：PCT/US1978000128
申请日：1978-10-25
申请人： BATTELLE DEV CORP
发明人： BATTELLE DEV CORP , MEZEY E , DINOVO S
IPC分类号： C01B17/00
CPC分类号： C07C7/13 , B01D53/02 , B01J20/06 , B01J20/18 , B01J20/3408 , B01J20/3433 , B01J20/3441 , C01B17/60 , C01B21/0422 , C01B21/045 , C07C9/02 , C07C9/04
摘要： Dielectric heating (microwave or radio frequency radiation) of saturated adsorbents to remove the adsorbed materials results in more rapid, efficient and safe regeneration than conventional heating. Separation of a gas mixture into two concentrated streams of its components is enabled by adsorption of one fraction by a selective adsorbent followed by removal of that fraction with dielectric heating and little or no purge gas. Useful by-products of the separation process are thereby economically recovered.

5. 发明申请

WO2010048201A2 SULFUR REMOVAL FROM GASES 审中-公开
标题翻译：从气体中清除硫
公开(公告)号：WO2010048201A2
公开(公告)日：2010-04-29
申请号：PCT/US2009/061348
申请日：2009-10-20
申请人： CONOCOPHILLIPS COMPANY , KELLER, Alfred E. , SCHMIDT, Roland
发明人： KELLER, Alfred E. , SCHMIDT, Roland
IPC分类号： C01B17/04 , C01B17/60 , B01D53/04 , B01D53/86
CPC分类号： C01B17/0404 , B01D53/523 , B01D53/83 , B01D53/8612 , B01D53/96 , B01D2251/508 , B01D2253/112 , B01D2255/1021 , B01D2255/1026 , B01D2255/104 , B01D2255/106 , B01D2255/20 , B01D2255/20723 , B01D2255/2073 , B01D2255/20738 , B01D2255/20746 , B01D2255/20753 , B01D2255/20761 , B01D2255/20776 , B01D2257/302 , B01D2257/304 , B01D2259/4009 , C01B17/0439 , C01B17/0456 , C01B17/60
摘要： A process is disclosed for removing/recovering sulfur from a gas stream using a Claus-type reactor followed by contact with a regenerable sorbent and recycle of SO² from the sorbent regeneration to the Claus-type reactor feed.
摘要翻译：公开了一种使用克劳斯型反应器从气流中除去/回收硫，然后与可再生吸附剂接触并将SO 2从吸附剂再生再循环到克劳斯型反应器进料的方法。

6. 发明申请

WO99026714A1 PROCESS FOR THE REDUCTION OF SO2 FROM WET LIME/LIMESTONE TAILGAS IN POWER PLANT DESULFURIZATION PROCESSES 审中-公开
标题翻译：电厂脱硫工艺中从极限/极地石灰中还原二氧化硫的工艺
公开(公告)号：WO99026714A1
公开(公告)日：1999-06-03
申请号：PCT/US1998/023669
申请日：1998-11-06
IPC分类号： B01D53/50 , B01D53/77 , B01D53/81 , B01D53/86 , C01B17/60 , B01D53/56 , B01D53/75 , B01D53/96 , C01B17/74
CPC分类号： B01D53/501 , B01D53/8637 , C01B17/60 , Y02P20/584
摘要： This invention describes a process for the scrubbing of sulfur oxides (2) from the effluent of conventional wet lime/limestone sulfur oxides reduction processes (3) in coal or oil fired plants (1). The sulfur oxides are oxidatively sorbed onto solid sorbents (4) such as magnesium aluminate spinel. Reduction with the appropriate reducing gases (such as hydrogen) regenerates the solid sorbent (5), which also yields a process stream containing sulfur oxides. The sulfur oxides containing stream (6) can be re-fed to the front end of the coal or oil fired plants (1), with the sulfur oxides thus produced ultimately being removed in the conventional wet scrubbing technology (3). This process may allow for the use of high sulfur fuels.
摘要翻译：本发明描述了一种从煤或油燃烧设备（1）中常规湿石灰/石灰石硫氧化物还原方法（3）的流出物中洗涤硫氧化物（2）的方法。硫氧化物被氧化吸附在固体吸附剂（4）如铝酸镁尖晶石上。用适当的还原气体（例如氢气）还原再生固体吸附剂（5），其还产生含有硫氧化物的工艺物流。含硫氧化物的物流（6）可以重新供给到煤或燃油装置（1）的前端，由此产生的硫氧化物最终在常规湿式洗涤技术（3）中被除去。该方法可允许使用高硫燃料。

7. 发明申请

WO1998009713A1 SELECTIVE REMOVAL AND RECOVERY OF SULFUR DIOXIDE FROM EFFLUENT GASES USING ORGANIC PHOSPHOROUS SOLVENTS 审中-公开
标题翻译：使用有机磷溶液从有利气体中选择性去除和回收二氧化硫
公开(公告)号：WO1998009713A1
公开(公告)日：1998-03-12
申请号：PCT/US1997014283
申请日：1997-08-12
申请人： MONSANTO COMPANY
发明人： MONSANTO COMPANY , BURMASTER, Brian, M. , McALISTER, Donald, R.
IPC分类号： B01D53/50
CPC分类号： B01D53/1481 , C01B17/60 , C01B17/76 , Y02A50/2348 , Y02A50/2349
摘要： A process for the selective removal and recovery of sulfur dioxide from effluent gases is disclosed. The sulfur dioxide is recovered in a sulfur dioxide absorption/desorption cycle which utilizes a liquid solvent to selectively absorb sulfur dioxide from the effluent gas. The liquid solvent comprises an organic phosphorous compound selected from phosphate triesters, phosphonate diesters, phosphinate monoesters and mixtures thereof. Preferably, the liquid solvent comprises phosphonate diesters of formula (I) wherein R , R and R are independently aryl or C1 to C8 alkyl. The organic phosphonate diesters are substantially water immiscible, the solubility of water in the organic phosphonate diester being less than about 10 weight percent at 25 DEG C, and have a vapor pressure less than about 1 Pa at 50 DEG C. In accordance with a preferred embodiment, the liquid solvent comprises dibutyl butyl phosphonate. The absorbed sulfur dioxide is subsequently stripped to regenerate the organic phosphorous solvent and produce a gas enriched in sulfur dioxide content. The sulfur dioxide-enriched gas may be used as part of the feed gas to a contact sulfuric acid plant or a Claus plant for the preparation of elemental sulfur or be cooled to condense sulfur dioxide in the form of a liquid product. The present invention is particularly useful in producing a sulfur dioxide-enriched gas from gases relatively weak in sulfur dioxide content.
摘要翻译：公开了从废气中选择性地除去和回收二氧化硫的方法。在二氧化硫吸收/解吸循环中回收二氧化硫，其利用液体溶剂从废气中选择性地吸收二氧化硫。液体溶剂包括选自磷酸三酯，膦酸二酯，次膦酸酯单酯及其混合物的有机磷化合物。优选地，液体溶剂包括式（I）的膦酸二酯，其中R 1，R 2和R 3独立地为芳基或C 1至C 8烷基。有机膦酸酯二酯基本上是水不混溶的，水在有机膦酸酯二酯中的溶解度在25℃下小于约10重量％，并且在50℃下具有小于约1Pa的蒸气压。根据优选的液体溶剂包括丁基丁基膦酸二丁酯。随后汽提吸收的二氧化硫以再生有机磷溶剂并产生富含二氧化硫含量的气体。富含二氧化硫的气体可以作为进料气体的一部分用于接触硫酸设备或用于制备元素硫的克劳斯设备，或被冷却以冷凝液体产物形式的二氧化硫。本发明特别可用于从二氧化硫含量相对较弱的气体制备富含二氧化硫的气体。

8. 发明申请

WO1993014026A1 METHOD AND APPARATUS FOR DESULFURIZATION OF A GAS 审中-公开
标题翻译：用于气体脱硫的方法和装置
公开(公告)号：WO1993014026A1
公开(公告)日：1993-07-22
申请号：PCT/US1993000319
申请日：1993-01-13
申请人： HASEBE, Nobuyasu , HASEBE, Nobukatsu
IPC分类号： C01B17/00
CPC分类号： C01B17/60 , B01D53/501 , B01D53/73
摘要： An alkaline earth bicarbonate is solubilized in water and contacted by a flue gas. The solubilized alkaline earth bicarbonate reacts with the SO2 in the flue gas to form an alkaline earth sulfite which readily precipitates from the water solution and is efficiently separated therefrom. In accordance with the invention, the slurry exiting the desulfurization step is subjected to a heating step which causes soluble alkaline earth bisulfite formed during the desulfurization step to convert to the insoluble sulfite. The solids are separated from the aqueous phase and subjected to thermal degradation to recover the alkaline earth oxide and SO2. The alkaline earth oxide can be recirculated and reused in the desulfurization process while the SO2, which has practical uses as a precursor in various chemical processes and therefore is of commercial value, is liquified. Thermal degradation of the solids from the desulfurization step is carried out in apparatus which includes a preheater zone, an ignition and heating chamber and a degradation zone. The thermal degradation is carried out in the presence of heated pellets which are themselves inert to the degradation reaction. Preferably, the pellets are heated in the ignition and heating chamber prior to contact with the solids from the desulfurization step.
摘要翻译：将碱土碳酸氢盐溶解在水中并与烟气接触。溶解的碱土金属碳酸氢盐与烟道气中的SO 2反应，形成碱土金属亚硫酸盐，其易于从水溶液中沉淀并与其有效分离。根据本发明，离开脱硫步骤的浆料经受加热步骤，其导致在脱硫步骤期间形成的可溶性碱土金属亚硫酸氢盐转化为不溶性亚硫酸盐。将固体与水相分离并进行热降解以回收碱土金属氧化物和SO 2。碱土金属氧化物可以在脱硫过程中再循环和重复使用，而具有实用用途的SO2在各种化学过程中作为前体，因此具有商业价值，被液化。来自脱硫步骤的固体的热降解在包括预热器区域，点火和加热室以及降解区域的设备中进行。热降解在本身对降解反应惰性的加热颗粒存在下进行。优选地，在与脱硫步骤的固体接触之前，在点火和加热室中加热颗粒。

9. 发明申请

WO1993004765A1 PROCESS FOR PURIFYING FLUE GAS 审中-公开
标题翻译：净化气体的方法
公开(公告)号：WO1993004765A1
公开(公告)日：1993-03-18
申请号：PCT/DE1992000718
申请日：1992-08-26
申请人： NYMIC ANSTALT , RITTER, Jürgen
发明人： NYMIC ANSTALT
IPC分类号： B01D53/34
CPC分类号： B01D53/08 , B01D2253/102 , B01D2257/2045 , B01D2257/2047 , B01D2257/302 , B01D2257/404 , B01D2257/602 , B01D2258/0283 , B01D2259/40001 , B01D2259/40052 , B01D2259/40081 , B01D2259/4009 , B01D2259/402 , C01B7/0718 , C01B17/60
摘要： Flue gas, especially that produced by the combustion of fossil fuels, can be purified without the generation of substantial waste products for disposal and with the obtention of useful substances from the main components of the impurities by means of the following process stages: the untreated gas is passed in counterflow through two successive adsorption filters (4, 5) with regeneratable adsorption material for the selective separation of the main components SO2 and HCl; the gas is then passed through a stage (6) to render NOx harmless; the adsorption material of the first adsorption filter (4) is subjected to a first regeneration process (7), the rich gas of which is used after purification (8) to obtain sulphuric acid; the adsorption material of the second adsorption filter (5) is subjected to a second regeneration process (10), the rich gas of which is used to obtain hydrochloric acid; and the regenerated adsorption materials are fed back into their appropriate adsorption filters (4, 5).

10. 发明申请

WO1987001612A1 PROCESS FOR THE RECOVERY OF SULPHUR DIOXIDE FROM GAS FLOWS 审中-公开
标题翻译：从二氧化碳气体回收二氧化硫的方法
公开(公告)号：WO1987001612A1
公开(公告)日：1987-03-26
申请号：PCT/NO1986000064
申请日：1986-09-16
申请人： SINTEF , ERGA, Olav
发明人： SINTEF
IPC分类号： B01D53/14
CPC分类号： B01D53/501 , C01B17/60
摘要： SO2 containing gas is purified by means of an aqueous absorption solution, and SO2 is regenerated from this solution. There is used an absorption solution containing a phosphate buffer, and SO2 is removed from the absorption solution together with water by evaporation.

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