2018
DOI: 10.1016/j.biotechadv.2018.01.011
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Abstract: Biogas production is an established sustainable process for simultaneous generation of renewable energy and treatment of organic wastes. The increasing interest of utilizing biogas as substitute to natural gas or its exploitation as transport fuel opened new avenues in the development of biogas upgrading techniques. The present work is a critical review that summarizes state-of-the-art technologies for biogas upgrading and enhancement with particular attention to the emerging biological methanation processes. … Show more

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Cited by 718 publications
(451 citation statements)
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References 100 publications
(134 reference statements)
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“…The emission rate depends on engine construction, plant design, and operation. Emissions can come from water handling facilities, gas engine exhausts, gas flaring, leaks from pipes, biogas upgrading units, tanks, etc., or from deliberate venting (Angelidaki et al, 2018;Duren et al, 2019;Fredenslund et al, 2018;Liebetrau et al, 2018;Samuelsson et al, 2018;Scheutz & Fredenslund, 2019). Some emissions can be single large leaks or long-lasting bursts from pressure relief valves (Reinelt & Liebetrau, 2019).…”
Section: Methane Emissions From Biodigesters and Biogas Generatorsmentioning
confidence: 99%
“…The emission rate depends on engine construction, plant design, and operation. Emissions can come from water handling facilities, gas engine exhausts, gas flaring, leaks from pipes, biogas upgrading units, tanks, etc., or from deliberate venting (Angelidaki et al, 2018;Duren et al, 2019;Fredenslund et al, 2018;Liebetrau et al, 2018;Samuelsson et al, 2018;Scheutz & Fredenslund, 2019). Some emissions can be single large leaks or long-lasting bursts from pressure relief valves (Reinelt & Liebetrau, 2019).…”
Section: Methane Emissions From Biodigesters and Biogas Generatorsmentioning
confidence: 99%
“…[35] Moreover, the process is facilitated by hydrogenotrophic methanogens, which are abundantm icroorganisms found in biogasp lants. One of the inherentadvantages is that the process occurs under mild temperature conditions (in the range of 30 to 60 8C, that is, meso or thermophilic) and close to atmospheric pressure.…”
Section: Chemoautotrophic Biogasupgradingmentioning
confidence: 99%
“…This is beneficialn ot only with respect to technology safety but also for the overall economy of biomethanation. [35] Moreover, the process is facilitated by hydrogenotrophic methanogens, which are abundantm icroorganisms found in biogasp lants. Mixed culturesc an be used to facilitate the conversion process, which meansthat sterile conditions are not required.C hemoautotrophic biogas upgrading methods have been validated at both laboratory and pilot scales.…”
Section: Chemoautotrophic Biogasupgradingmentioning
confidence: 99%
“…Adsorption based processes have been widely explored for the upgrading of biogas due to their relatively low energy requirements and capital investment cost, flexibility of design, safety and simplicity of operation, as well as a high efficiency [6]. On this type of separation technology, the components of a gas mixture are separated based on their molecular characteristics and affinity to an adsorbent material.…”
Section: Of 10mentioning
confidence: 99%