Advances in technologies for in situ desulfurization of biogas

Zhang, Xin; Lawan, Ibrahim; Danhassan, Umar Abdulbaki; He, Yefan; Qi, Riying; Wu, Anxin; Sheng, Kuichuan; Lin, Hongjian

doi:10.1016/bs.aibe.2022.05.001

Cited by 5 publications

(18 citation statements)

References 105 publications

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“…An ion-exchange membrane typically divides an anode for oxidation and a cathode for reduction to transport the ions in a reactor (Aryal et al, 2022). There are two types of electrochemical sulfide oxidation reactions: direct oxidation and indirect oxidation (Zhang et al, 2022). During the direct oxidation process, sulfide is oxidized to elemental sulfur (SO), sulfate (SO 4 2-), sulfite (SO 3 2-), or thiosulfate (S 2 O 3 2-), which is related to the anode material used in the experiment (Zhang et al, 2022).…”

Section: Electrochemical Oxidationmentioning

confidence: 99%

“…Anaerobic digestion is a supportable stage and monetarily accessible innovation that can create crude biogas from squandered natural materials through complex biochemical cycles (Zhang et al, 2022;Das et al, 2022a). Many elements influence the interaction effect for producing high-quality biogas and among them, working circumstances (for example pH, temperature, or maintenance time), and the design of the anaerobic digester (Bahraminia et al, 2020;Das et al, 2022b;Franco-Morgado et al, 2018;Khan et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Many elements influence the interaction effect for producing high-quality biogas and among them, working circumstances (for example pH, temperature, or maintenance time), and the design of the anaerobic digester (Bahraminia et al, 2020;Das et al, 2022b;Franco-Morgado et al, 2018;Khan et al, 2021). This innovation shows incredible potential for the administration of natural squanders produced from agriculture, industry, and metropolitan activities (Zhang et al, 2022). It is gotten from domesticated animals' fertilizer, agriculture build-ups, biodegradable pieces of metropolitan waste, wastewater slime, modern parks, normal decay processes, wastewater treatment cycles, and food deposits are modest and plentiful wellsprings of natural matter for biogas creation by means of anaerobic digestion (Khalil et al, 2019;Nhut et al, 2020;Hou et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…As a green elective fuel to petroleum gas, exhaustive biogas purging is expected preceding its application. Biogas can be utilized to create heat and steam, electric power, vehicle fuel, gas-powered motors (which requires H 2 S expulsion) or turbines (which requires a severe siloxane evacuation), or could be utilized for petroleum gas lattice infusion (Das et al, 2022a;Torres et al, 2020;Zhang et al, 2022). The aim of the study is to determine the most important technologies for biogas purification from H 2 S, emphasize on each method's variables, and sorption capacity and to fairly evaluate and compare their benefits against drawbacks from concept to implementation; relying on obtained research analysis results by other recently published scientific articles, and distinguish most important characteristics of the selected purification methods (such as RE (removal efficiency), temperature, humidity, pH, etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Adsorbent surface compositions, specific surface area, and porosity appear to dominate sulfide adsorption (Jiao et al, 2022). Adsorbent desulfurization capacity is enhanced by suitable humidity or high temperature (Zhang et al, 2022). Dry desulfurization has the advantages of low energy consumption, straightforward regeneration, and low desulfurize pulverization rates (Jiao et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

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Analysis and Evaluation of the Biogas Purification Technologies From H2s

Mohammadi,

Vaiškūnaitė

2023

Science - Future of Lithuania

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H2S concentrations in biogas are limited by environmental regulations. Because these gases are toxic to human health, cause corrosion, and damage the combined heat and power (CHP) engines and other metallic parts after burning. Hence, the following requirements must be met by a biogas purification method: 1 – high H2S removal efficiency (RE), 2 – stability over a long period of time, 3 – low cost, 4 – minimal biogas dilution, and 5 – straightforward structure. There are various physical, chemical, and biological technologies, which can be undertaken to meet earlier mentioned criteria and efficiently remove H2S from biogas. In this study, electrochemical oxidation, adsorption by zeolite, pressure swing adsorption, adsorption on activated carbon, adsorption on metal oxides, adsorption on nano-particles, metal sulfide precipitation, water scrubbing, membrane separation, organic solvents (amine), microaeration, and purification by sulfur-oxidizing bacteria (anoxic, aerobic, anaerobic), will be introduced, while their pros and cons are compared and discussed in detail.

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Section: Electrochemical Oxidationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Analysis and Evaluation of the Biogas Purification Technologies From H2s

Mohammadi,

Vaiškūnaitė

2023

Science - Future of Lithuania

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Insight into the effective electrocatalytic sulfide removal from aqueous solutions using surface oxidized stainless-steel anode and its desulfurization mechanism

Qi,

Lin,

Sheng

et al. 2024

Science of The Total Environment

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Effects of Pyrolysis Temperature on Biochar Physicochemical and Microbial Properties for H2S Removal from Biogas

Vaiškūnaitė,

Mažeikienė,

Mohammadi

2024

Sustainability

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Sludge is produced in sewage treatment plants and is still a problematic waste type after anaerobic digestion. A sustainable sludge management strategy would be to pyrolyze it and obtain biochar suitable for use in biofilters. This article examines the physical and chemical properties of biochar obtained by pyrolyzing sewage sludge at a temperature of 300–600 °C. The pyrolyzed sludge was used in the biofilter as a filler. The results demonstrated biochar packing materials after pyrolysis at 300 °C, 400 °C, 500 °C, and 600 °C, which exhibited porosities of 35%, 42%, 67%, and 75%, respectively. During the research study, it was established that the biofilter showed excellent efficiency (between 55 and 99 percent) when using carbon pyrolyzed at temperatures of 500 °C and 600 °C. In this study, the average growth rates of the number of sulfur-oxidizing microorganisms were 1.55 × 104 CFU/g at the first stage of the biofilter, 2.63 × 104 CFU/g at the second stage, 3.65 × 104 CFU/g at the third stage, 5.73 × 104 CFU/g at the fourth stage, and 2.62 × 104 CFU/g at the fifth stage. The number of sulfur-oxidizing microorganisms in the packing bed of biofilters during the 60-day period of the experiment constantly increased. The experimental results of H2S purification in biogas were compared with mathematical modeling results. These comparative results revealed a consistent trend: the model-estimated filter efficiency also reached 70–90 percent after 60 days of investigation.

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Advances in technologies for in situ desulfurization of biogas

Cited by 5 publications

References 105 publications

Analysis and Evaluation of the Biogas Purification Technologies From H2s

Analysis and Evaluation of the Biogas Purification Technologies From H2s

Insight into the effective electrocatalytic sulfide removal from aqueous solutions using surface oxidized stainless-steel anode and its desulfurization mechanism

Effects of Pyrolysis Temperature on Biochar Physicochemical and Microbial Properties for H2S Removal from Biogas

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