Chemoadsorption for Separation of Hydrogen Sulfide from Biogas with Iron Hydroxide and Sulfur Recovery

Lincke, Marc; Petasch, Uwe; Gaitzsch, Uwe; Tillmann, Andreas M.; Tietze, Michael; Niebling, Falko

doi:10.1002/ceat.202000032

Cited by 10 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[42,43] An interesting application in the field of energy technology is the use of catalytic-coated foams for the production of synthesis gas, olefins, and alcohols. Examples are steam reforming processes, [44,45] selective oxidation of alcohols, [46] methanol-to-olefins conversion [47] as well as classical methods such as the water-gas-shift reaction or the Fischer-Tropsch synthesis. [47] In addition to catalytic applications, ceramic foams can also be coated with adsorbents for the removal of odorants, hydrogen sulfide, or for solvent recovery.…”

Section: Application Potentialmentioning

confidence: 99%

60 Years of Open‐Celled Ceramics Based on Replica Technique: Applications, Obstacles, and Opportunities

Haase,

Füssel,

Adler

et al. 2024

Adv Eng Mater

Self Cite

View full text Add to dashboard Cite

Open‐celled ceramics look back on a remarkable history of development and innovation spanning around 60 years. Starting with the first patents to produce ceramic foams in the 1960s, the Schwartzwalder process became established industrially for manufacturing molten metal filters. Since then, a wide range of potential applications for these specific structured materials has been identified and discussed in the literature, such as porous burners, direct heaters, structured catalyst supports, filters, bone substitute materials, energy absorbers, preforms, and lightweight or acoustic construction components. For such high‐performance applications, ceramic foams require high quality in terms of purity, mechanical strength, high temperature and chemical resistance or structural design. On this account, production technologies and material variety of ceramic foams have developed rapidly over the past few decades, and there are numerous applications in the industrial sector. This paper gives an overview of the current state of development of open‐celled ceramic foams for various applications. Based on selected examples, it is demonstrated for which applications an industrial implementation has been successfully realized and why some applications will never get beyond the proof‐of‐concept stage in research.This article is protected by copyright. All rights reserved.

show abstract

Section: Application Potentialmentioning

confidence: 99%

60 Years of Open‐Celled Ceramics Based on Replica Technique: Applications, Obstacles, and Opportunities

Haase,

Füssel,

Adler

et al. 2024

Adv Eng Mater

Self Cite

View full text Add to dashboard Cite

show abstract

“…Zinc and copper oxides supported on porous adsorbent silica have attracted recent attention for H 2 S capture due to the potential for the combination of sulfidation thermodynamics and active metal oxides [53,54]. The porous adsorbent is generally synthesized from various composite materials based on metal foams [55], zeolites [56], laterites [57], kaolin [58], silica [59], carbon of miscellaneous sources [60] and other solid phases impregnated with metal salts and their mixtures in order to enhance the adsorption capability of the fixed bed. Bahman Elyasis et al stated that Cu-ZnO nanoparticles impregnated with mesoporous silica show a significant impact on H 2 S removal.…”

Section: Adsorptionmentioning

confidence: 99%

Insights on Cryogenic Distillation Technology for Simultaneous CO2 and H2S Removal for Sour Gas Fields

et al. 2022

View full text Add to dashboard Cite

Natural gas demand has dramatically increased due to the emerging growth of the world economy and industry. Presently, CO2 and H2S content in gas fields accounts for up to 90% and 15%, respectively. Apart from fulfilling the market demand, CO2 and H2S removal from natural gas is critical due to their corrosive natures, the low heating value of natural gas and the greenhouse gas effect. To date, several gas fields have remained unexplored due to limited technologies to monetize the highly sour natural gas. A variety of conventional technologies have been implemented to purify natural gas such as absorption, adsorption and membrane and cryogenic separation. The application of these technologies in natural gas upgrading are also presented. Among these commercial technologies, cryogenic technology has advanced rapidly in gas separation and proven ideally suitable for bulk CO2 removal due to its independence from absorbents or adsorbents, which require a larger footprint, weight and energy. Present work comprehensively reviews the mechanisms and potential of the advanced nonconventional cryogenic separation technologies for processing of natural gas streams with high CO2 and H2S content. Moreover, the prospects of emerging cryogenic technologies for future commercialization exploitation are highlighted.

show abstract

“…The byproduct CO 2 also leads to greenhouse gas emission 9,10 . Besides, H 2 S is notoriously famous for its high toxicity and environmental unfriendliness 11,12 . Therefore, the HDS route is environmentally and economically unfavorable.…”

Section: Main Textmentioning

confidence: 99%

Methane-Assisted Catalytic Desulfurization in an Environmentally Benign Way

Song¹,

Xu²,

He³

et al. 2021

Preprint

View full text Add to dashboard Cite

Petroleum is one of the most important natural resources for human beings, while the contained sulfur heteroatoms lead to a series of problems1. Therefore, a desulfurization process to reduce sulfur content is mandatory for clean petroleum utilization. Hydrodesulfurization is currently mature in industry, while this process is costly, energy intensive and environmentally unfriendly due to CO2 emission and H2S production2,3. Alternative cost-effective desulfurization process with environmentally benign sulfur-containing products remains unreported. Here we demonstrate that the desulfurization of a heavy oil model compound dibenzothiophene can be successfully achieved under methane environment over creatively designed dual catalyst system, generating a new sulfur-containing product CS2. Control experiments indicate that the presence of methane as well as catalyst components for direct desulfurization and methane activation are all required. The reaction process is better understood by extensive evidences from isotope labeling experiments, catalyst and product characterizations, density functional theory calculations and verification experiments, based on which a reasonable catalytic mechanism is proposed. It is found that methane-assisted desulfurization requires more stringent conditions, where sulfur vacancy abundance, methane activation capability and surface sulfur transfer are all indispensable. This study pioneers a transformational desulfurization route, which is more economically and environmentally attractive for petroleum processing industry.

show abstract

Chemoadsorption for Separation of Hydrogen Sulfide from Biogas with Iron Hydroxide and Sulfur Recovery

Cited by 10 publications

References 2 publications

60 Years of Open‐Celled Ceramics Based on Replica Technique: Applications, Obstacles, and Opportunities

60 Years of Open‐Celled Ceramics Based on Replica Technique: Applications, Obstacles, and Opportunities

Insights on Cryogenic Distillation Technology for Simultaneous CO2 and H2S Removal for Sour Gas Fields

Methane-Assisted Catalytic Desulfurization in an Environmentally Benign Way

Contact Info

Product

Resources

About