Catalytic processes and catalysts for production of elemental sulfur from sulfur-containing gases

Zagoruiko, Andrey N.; Shinkarev, V. V.; Vanag, Segey V; Bukhtiyarova, G. A.

doi:10.1134/s2070050410040082

Cited by 27 publications

(10 citation statements)

References 43 publications

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“…Its strong acido-basicity makes it an important industrial catalyst e.g. for the Claus process [2,3], the synthesis of dimethyl ether from methanol [4], diethylether (DEE) [5] and ethylene from (bio)ethanol [6] and for the treatment of Fischer Tropsch syncrudes [7]. According to its high surface area (50-300 m 2 g -1 ) and high thermal stability (up to 873 K), as well as its dispersing activity for surface species, -Al 2 O 3 is widely used as the support of metal [8] and sulphide catalysts [9].…”

Section: Introductionmentioning

confidence: 99%

Pure vs ultra-pure γ-alumina: A spectroscopic study and catalysis of ethanol conversion

Garbarino

Travi

Pani

et al. 2015

Catalysis Communications

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Section: Introductionmentioning

confidence: 99%

Pure vs ultra-pure γ-alumina: A spectroscopic study and catalysis of ethanol conversion

Garbarino

Travi

Pani

et al. 2015

Catalysis Communications

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“…The possibilities for the immediate optimization of Claus units in this manner are nearly exhausted. In recent decades, the efficiency of sulfur recovery has generally been improved via processes of tail gas cleansing [2][3][4], among which are those based on the selective catalytic oxidation of hydrogen sulfide with oxygen to sulfur. Super Claus (Comprimo) [5,6] is the best known and most widely used industrial pro cess of this type.…”

Section: Introductionmentioning

confidence: 99%

“…Super Claus (Comprimo) [5,6] is the best known and most widely used industrial pro cess of this type. A similar domestic process has been developed at the Institute of Catalysis, Siberian Branch, Russian Academy of Sciences and imple mented on an commercial scale at the Omsk Oil Refinery [3,7].…”

Section: Introductionmentioning

confidence: 99%

Vanadium oxide catalysts on structured microfiber supports for the selective oxidation of hydrogen sulfide

et al. 2015

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Vanadium(V) oxide catalysts for the selective oxidation of hydrogen sulfide to sulfur on a nonpo rous glass fiber support with a surface layer of a porous secondary support (SiO 2 ) are studied. The catalysts are obtained by means of pulsed surface thermosynthesis. Such catalysts are shown to have high activity and acceptable selectivity in the industrially important region of temperatures below 200°C. A glass fiber catalyst containing vanadium oxide (10.3 wt % of vanadium) in particular ensures the complete conversion of H 2 S at a temperature of 175°C and a reaction mixture hourly space velocity (RMHSV) of 1 cm 3 /(g cat s) with a sulfur yield of 67%; this is at least 1.35 times higher than for the traditional iron oxide catalyst. Using a structured glass fiber woven support effectively minimizes diffusion resistance and greatly simplifies the scaleup of pro cesses based on such catalysts. Such catalysts can be used for the cleansing of tail gases from Claus units and in other processes based on the selective oxidation of H 2 S.

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“…As is known, the remaining H 2 S in Claus tail gas can be eliminated to a great extent by various additional purication technologies (such as low temperature Claus technology, 9,10 reduction-absorption technology 11 and H 2 S selective oxidation technology [12][13][14][15] ). Even though additional purication technologies are applied, the sulfur recovery can only reached as high as 99%.…”

Section: 2mentioning

confidence: 99%

Modeling and simulation of an improved ammonia-based desulfurization process for Claus tail gas treatment

et al. 2017

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An improved ammonia-based desulfurization technology was proposed, in which the produced excess NH 4 HSO 3 was concentrated by using the heat from the Claus tail gas and then SO 2 was recovered by decomposing the concentrated NH 4 HSO 3 in the Claus furnace. Furthermore, the process was modeled and simulated using the commercial software Aspen Plus. The characteristics of the ammonia-based desulfurization model were validated and compared with experimental results. Moreover, the water balance in the system was maintained, therefore, no extra water was required. Under the water balance condition, the SO 2 removal performance in the system was predicted with various operating conditions.The model exhibited a reliable prediction of the desulfurization performance of the innovative process, which will be favorable for actual industrial application.

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Catalytic processes and catalysts for production of elemental sulfur from sulfur-containing gases

Cited by 27 publications

References 43 publications

Pure vs ultra-pure γ-alumina: A spectroscopic study and catalysis of ethanol conversion

Pure vs ultra-pure γ-alumina: A spectroscopic study and catalysis of ethanol conversion

Vanadium oxide catalysts on structured microfiber supports for the selective oxidation of hydrogen sulfide

Modeling and simulation of an improved ammonia-based desulfurization process for Claus tail gas treatment

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