A novel two-stage process for biological conversion of syngas to biomethane

Andreides, Dominik; Quispe, Jhonny Ismael Bautista; Bartackova, Jana; Pokorná, Dana; Zábranská, J.

doi:10.1016/j.biortech.2021.124811

Cited by 17 publications

(3 citation statements)

References 35 publications

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“…In addition, Kaithal et al [165] recommended syngas as a great source of H 2 . Andreides et al [166] reported the conversion of CH 4 to syngas, where syngas can be used as an additive in the AD process to create and increase the H 2 level in the system by reacting with CO 2 and CO to produce CH 4 . AD syngas bio methanation produced 94.7% of CH 4 .…”

Section: Integration Of Anaerobic Digestion With Pyrolysismentioning

confidence: 99%

Biofuel Recovery from Plantain and Banana Plant Wastes: Integration of Biochemical and Thermochemical Approach

Giwa¹,

Sheng²,

Maurice³

et al. 2023

Journal of Renewable Materials

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Globally, fossil fuel dependence has created several environmental challenges and climate change. Hence, creating other alternative renewable and ecologically friendly bio-energy sources is necessary. Lignocellulosic biomass has gained significant attention recently as a renewable material for biofuel production. The large amounts of plantain and banana plant parts wasted after harvesting, as well as the peels generated daily by the fruit market and industries, demonstrate the potential of bioenergy resources. This review briefly assesses plantain and banana plant biomass (PBB) generated in the developing, developed, and underdeveloped countries, the consumable parts, and feasible products yield. It emphasized the advantages and disadvantages of the commonly adopted treatment technologies of composting, incineration, and landfilling. Further, the utilization of PBB as catalysts in biodiesel synthesis was briefly highlighted. To optimize recovery of biofuel, different integration routes of pyrolysis, anaerobic digestion, fermentation, hydrothermal carbonization, hydrothermal liquefaction, and hydrothermal gasification for the valorization of the PBB were proposed. The complex compounds present in the PBB (hemicellulose, cellulose, and lignin) can be converted into valuable bio-products such as methane gas and bio-ethanol for bioenergy, and nutrients to promote bioactive ingredients. The investigation of the viability and innovation potential of the integrated routes' technology is necessary to improve the circular bio-economy and the recovery of biofuels from biomass waste, particularly PBB.

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Section: Integration Of Anaerobic Digestion With Pyrolysismentioning

confidence: 99%

Biofuel Recovery from Plantain and Banana Plant Wastes: Integration of Biochemical and Thermochemical Approach

Giwa¹,

Sheng²,

Maurice³

et al. 2023

Journal of Renewable Materials

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“…Biogas is an appealing energy source for reducing greenhouse gas emissions, containing approximately 40 to 75 percent 𝐶𝐻 4 and an unavoidable volume of 𝐶𝑂 2 depending on the feedstock; waste landfills, agricultural waste treatment plants, sewage end-treatment plants, and animal manure treatment plants are the primary sources of biogas [16,17].…”

Section: Introductionmentioning

confidence: 99%

Trend in Publications Related to Biomethane Using a Bibliometric Approach

Jiménez-Islas¹,

Pérez-Romero²,

García³

et al. 2023

IJDNE

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The emission of greenhouse gases emitted into the atmosphere by the burning of fossil fuels has allowed the development of biofuels such as biomethane. The aim of this research was to explore the characteristics of biomethane literature from 1978 to 2020 based on the database of Scopus and its implications using indicators bibliometrics. The information in the database was analyzed through the Gompertz model to determine the specific growth rate over the years. Also, maps were elaborated with the VOSviewer software to show in a visual way the collaboration between authors and keywords related to the topic of study. Documents were examined in a variety of aspects of the publication characteristics such as document type, language, authorship, countries, institutions, journals, high-cited papers. Results showed that the evolution of publications grew exponentially from 2006 to 2020, the specific speed of growth determined with the Gompertz model was 0.4 0.095 years -1 (𝑅 2 >0.99). 52% of publications are concentrated in five countries (Italy, India, China, the United States and Spain). Bioresource Technology is the journal with the highest number of publications and citations, the authors publish in quartile 1 and 2 journals. The biomethane topic has a growing number of publications and citations due to the collaboration between researchers from different countries. The present work can be contrasted with the analysis of bibliographic indicators with other databases to determine the level of collaboration with other journals with different index.

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“…Other determinants of process efficiency, such as microbial community structure and abundance as influenced by operating parameters, have been less thoroughly investigated and the links between operational settings and performance and the microbial community are not fully understood. The few microbiological analyses that have been performed have mainly focused on methanation from H 2 /CO 2 (Sposob et al 2021;Tsapekos et al 2021) and less on syngas, and most studies have been performed at thermophilic temperatures, using defined medium (Li et al 2020a(Li et al , 2021Andreides et al 2021;Aryal et al 2021). The aim of the present study was to extend knowledge on the microbiology of syngas methanation and, more specifically, to investigate the influence of different nutrient media on microbial community development during long-term operation of a mesophilic TBR.…”

Section: Introductionmentioning

confidence: 99%

Microbial community development during syngas methanation in a trickle bed reactor with various nutrient sources

Cheng¹,

Gabler

Pizzul

et al. 2022

Appl Microbiol Biotechnol

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Microbial community development within an anaerobic trickle bed reactor (TBR) during methanation of syngas (56% H2, 30% CO, 14% CO2) was investigated using three different nutrient media: defined nutrient medium (241 days), diluted digestate from a thermophilic co-digestion plant operating with food waste (200 days) and reject water from dewatered digested sewage sludge at a wastewater treatment plant (220 days). Different TBR operating periods showed slightly different performance that was not clearly linked to the nutrient medium, as all proved suitable for the methanation process. During operation, maximum syngas load was 5.33 L per L packed bed volume (pbv) & day and methane (CH4) production was 1.26 L CH4/Lpbv/d. Microbial community analysis with Illumina Miseq targeting 16S rDNA revealed high relative abundance (20–40%) of several potential syngas and acetate consumers within the genera Sporomusa, Spirochaetaceae, Rikenellaceae and Acetobacterium during the process. These were the dominant taxa except in a period with high flow rate of digestate from the food waste plant. The dominant methanogen in all periods was a member of the genus Methanobacterium, while Methanosarcina was also observed in the carrier community. As in reactor effluent, the dominant bacterial genus in the carrier was Sporomusa. These results show that syngas methanation in TBR can proceed well with different nutrient sources, including undefined medium of different origins. Moreover, the dominant syngas community remained the same over time even when non-sterilised digestates were used as nutrient medium. Key points •Independent of nutrient source, syngas methanation above 1 L/Lpbv/D was achieved. •Methanobacterium and Sporomusa were dominant genera throughout the process. •Acetate conversion proceeded via both methanogenesis and syntrophic acetate oxidation. Graphical abstract

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A novel two-stage process for biological conversion of syngas to biomethane

Cited by 17 publications

References 35 publications

Biofuel Recovery from Plantain and Banana Plant Wastes: Integration of Biochemical and Thermochemical Approach

Biofuel Recovery from Plantain and Banana Plant Wastes: Integration of Biochemical and Thermochemical Approach

Trend in Publications Related to Biomethane Using a Bibliometric Approach

Microbial community development during syngas methanation in a trickle bed reactor with various nutrient sources

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