Determining global trends in syngas fermentation research through a bibliometric analysis

Calvo, Diana Carolina; Wandurraga, Héctor Javier Luna; Arango, Jineth A.; Torres, César I.; Rittmann, Bruce E.

doi:10.1016/j.jenvman.2022.114522

Cited by 11 publications

(6 citation statements)

References 123 publications

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“…The years 2013, 2016, and 2021 were especially relevant, as these were years of increased scientific and patent publications, indicating a possible technological breakthrough. Patent filing related to syngas fermentation saw a fast-paced increase from 2005 to 2013 (as can be verified by a quick search on LENS), much as was observed for syngas fermentation scientific publications [6]. The years of 2012 and 2013 marked the installation and first runs of many of the pilot plants that have operated over the last 11 years, and companies started to develop optimized processes and strains [7].…”

Section: Overviewmentioning

confidence: 65%

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A Systematic Review of Syngas Bioconversion to Value-Added Products from 2012 to 2022

2023

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Synthesis gas (syngas) fermentation is a biological carbon fixation process through which carboxydotrophic acetogenic bacteria convert CO, CO2, and H2 into platform chemicals. To obtain an accurate overview of the syngas fermentation research and innovation from 2012 to 2022, a systematic search was performed on Web of Science and The Lens, focusing on academic publications and patents that were published or granted during this period. Overall, the research focus was centered on process optimization, the genetic manipulation of microorganisms, and bioreactor design, in order to increase the plethora of fermentation products and expand their possible applications. Most of the published research was initially funded and developed in the United States of America. However, over the years, European countries have become the major contributors to syngas fermentation research, followed by China. Syngas fermentation seems to be developing at “two-speeds”, with a small number of companies controlling the technology that is needed for large-scale applications, while academia still focuses on low technology readiness level (TRL) research. This systematic review also showed that the fermentation of raw syngas, the effects of syngas impurities on acetogen viability and product distribution, and the process integration of gasification and fermentation are currently underdeveloped research topics, in which an investment is needed to achieve technological breakthroughs.

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Section: Overviewmentioning

confidence: 65%

“…However, the same search in the WoS resulted in data with many off-topic publications, while other publications of interest were absent. As such, an augmented SQ model, drawing inspiration from the one that was employed by Calvo et al, (2022) was implemented, and is provided for reference in Appendix A.…”

Section: Databases and Search Querymentioning

confidence: 99%

A Systematic Review of Syngas Bioconversion to Value-Added Products from 2012 to 2022

2023

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“…The input data to perform bibliometric analysis in scientific fields is typically provided by referential databases such as Web of Science (WoS). Based on our experience [33,34], a bibliometric analysis procedure was established, which is described in this section, along with the software tools used to generate diverse bibliometric results and trends.…”

Section: Methodsmentioning

confidence: 99%

A half-century of research on microalgae-bacteria for wastewater treatment

et al. 2022

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“…The number of scientific publications regarding syngas fermentation has increased exponentially in recent years [165]. Alcohols with longer chains than ethanol can also be obtained from syngas fermentation.…”

Section: Co + 3 H2o  C2h5oh + 4 Co2mentioning

confidence: 99%

Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance

Ellacuriaga,

Gil,

Gómez

2023

Preprint

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The fermentation of syngas is an attractive technology that can be integrated with gasification of lignocellulosic biomass. The coupling of these two technologies allows for treating a great variety of raw materials. Lignin usually hinders microbial fermentations; thus, the thermal decomposition of the whole material into small molecules allows for the production of fuels and other types of molecules using syngas as substrate, a process performed at mild conditions. Syngas contains mainly hydrogen, carbon monoxide and carbon dioxide in varying proportions. These gases have a low volumetric energy density, resulting more interesting its conversion into higher energy density molecules. Syngas can be transformed by microorganisms, thus avoiding the use of expensive catalysts, which may be subject to poisoning. However, the fermentation is not free of suffering from inhibitory problems. The presence of trace components in syngas may cause a decrease in fermentation yields or cause a complete cessation of bacteria growth. The presence of tar and hydrogen cyanide are just examples of this fermentation's challenges. Syngas cleaning impairs significant restrictions in technology deployment. The technology may seem promising, but it is still far from large-scale application due to several aspects that still need to find a practical solution.

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Determining global trends in syngas fermentation research through a bibliometric analysis

Cited by 11 publications

References 123 publications

A Systematic Review of Syngas Bioconversion to Value-Added Products from 2012 to 2022

A Systematic Review of Syngas Bioconversion to Value-Added Products from 2012 to 2022

A half-century of research on microalgae-bacteria for wastewater treatment

Syngas Fermentation: Cleaning of Syngas as a Critical Stage in Fermentation Performance

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