Recent advances in biogas upgrading to value added products: A review

Rosha, Pali; Rosha, Arshdeep Kaur; Ibrahim, Hussameldin; Kumar, Sandeep

doi:10.1016/j.ijhydene.2021.03.246

Cited by 61 publications

(21 citation statements)

References 141 publications

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“…The WGS reaction was discovered in 1780 by the Italian physicist named Felice Fontana. However, it was not until the early 20th century, when Carl Bosch and Wilhelm Wild tried to produce H 2 from steam and CO, that this reaction was actually observed. − While the WGS reaction is of great importance, the RWGS has gained attention lately because of its potential role in CO 2 utilization. It is endothermic, and its reaction enthalpy at 298 K is +41 kJ/mol, as seen above.…”

Section: Combining Carbon Dioxide Capture and Utilizationmentioning

confidence: 99%

Closing the Carbon Cycle with Dual Function Materials

2021

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Carbon dioxide (CO2) is one of the most harmful greenhouse gases, and it is the main contributor to climate change. Its emissions have been constantly increasing over the years due to anthropogenic activities. Therefore, efforts are being made to mitigate emissions through carbon capture and storage (CCS). An alternative solution is to close the carbon cycle by utilizing the carbon in CO2 as a building block for chemicals synthesis in a CO2 recycling approach that is called carbon capture and utilization (CCU). Dual function materials (DFMs) are combinations of adsorbent and catalyst capable of both capturing CO2 and converting it to fuels and chemicals in the same reactor with the help of a coreactant. This innovative strategy has attracted attention in the past few years given its potential to lead to more efficient synthesis through the direct conversion of adsorbed CO2. DFM applications for both postcombustion CCU and direct air capture (DAC) and utilization have been demonstrated to date. In this review, we present the unique role DFMs can play in a net zero future by first providing backgrounds on the types of CCU methods of varying technological maturity. Then, we present the developed applications of DFMs such as the synthesis of methane and syngas. To better guide future research efforts, we place an emphasis on the connection between DFM physiochemical properties and performance. Lastly, we discuss the challenges and opportunities of DFM development and recommend research directions for taking advantage of their unique role in a low-carbon circular economy.

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Section: Combining Carbon Dioxide Capture and Utilizationmentioning

confidence: 99%

Closing the Carbon Cycle with Dual Function Materials

2021

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“…One of these is biogas. Biogas is a key element for the circular economy, as it enables the energetic recycle of biogenic waste residues and its valorization toward various products. , Biogas is a mixture of mainly CH 4 and CO 2 , which can serve as a source of renewable natural gas and carbon. Unfortunately, the development of chemical processes based on biogas is challenging due to the production in small-scale plants, often in remote locations .…”

Section: Introductionmentioning

confidence: 99%

Eco-Techno-Economic Analysis of Methanol Production from Biogas and Power-to-X

Moioli

Schildhauer

2022

Ind. Eng. Chem. Res.

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Methanol is a key ingredient for the chemical industry. To foster the transition into carbon-neutral future, it would be of great interest to reduce the fossil carbon footprint of the methanol production by investigating alternative synthesis routes. A potential way to produce methanol in a sustainable manner is to utilize biogas, which is a carbon-neutral feedstock. However, it is challenging to provide enough biogas to large-scale plants. For this reason, we investigate in this paper the possibility of producing methanol in small-scale decentralized plants. We analyzed the techno-economic-environmental performance of the downscaling of the standard methanol production via steam reforming and compared it with the novel synthesis via direct CO 2 hydrogenation with green H 2 . We observed that, with cheap electricity and high methanol value, these processes are both profitable, with a slight advantage for the steam-reforming route. Additionally, the direct CO 2 hydrogenation route can be improved by developing tailor-made less costly equipment, thus showing a potential for application in an energy storage context (i.e., with extremely cheap electricity). We also observed that the use of biomethane as feedstock for centralized methanol production shows a similar performance as the localized methanol synthesis due to the high cost of the raw material. Therefore, we can conclude that, with every technology analyzed, the shift toward a biogas-based methanol manufacture results in a more expensive product and that small-scale-localized production may play a role in the bio-based methanol supply.

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“…However, this pathway requires changes to existing infrastructures and engines. Biogas reforming to syngas ,− (H 2 and CO) followed by hydrogenation reaction can be used as a more effective option for the production of hydrocarbon fuels. − Although the relatively small scale of biogas plants may present a challenge, several companies have successfully operated and optimized small scale Gas to Liquid (GTL) processes, , which results in reduced capital cost and can promote utilization of medium to large scale biogas plants.…”

Section: Introductionmentioning

confidence: 99%

Techno-economic Analysis of Biogas Conversion to Liquid Hydrocarbon Fuels through Production of Lean-Hydrogen Syngas

Hos

Herskowitz

2022

ACS Eng. Au

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Large-scale biogas plants are a viable source of CH4 and CO2 to be converted efficiently into high-value products. Specifically, production of liquid hydrocarbons can enhance the availability of green fuels while achieving significant CO2 reductions on site. In this study, the production of liquid hydrocarbons is simulated by dry reforming of biogas into lean-hydrogen syngas, further converted in CO hydrogenation and oligomerization reactors. The process was modeled by using CHEMCAD based on published experimental results with the projected feed composition. A high molar feed ratio of CO2/CH4 (>1.7) was set for the reformer to minimize steam requirement while avoiding carbon formation and reaching an optimal H2 to CO molar ratio (0.7). Two options were techno-economically evaluated based on a biogas plant with a capacity of 5000 N m3/h that produces between 13.8 and 15.7 million liters per year of blending stock for transportation fuels. The economics of the process depends mainly on the cost and availability of the biogas. The minimum selling price of the liquid fuels is $1.47/L and $1.37/L for options 1 (once-through conversion of syngas to liquid fuels) and 2 (recycle of tail gas from oligomerization reactor), respectively, and can be significantly reduced in case the biogas throughput is increased to >20 000 N m3/h. Recycling of the tail gas (option 2) yielded higher productivity, resulting in higher carbon yield (77.9% on the basis of methane) and energy efficiency (67.1%). The economic viability of the process can be improved by implementing CO2 tax or other incentives to reduce capital investment. It provides a potential route for efficient conversion of biogas into liquid hydrocarbons to meet the increased demand for renewable fuels as blending stock in the transportation sector while improving the sustainability of the plant.

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Recent advances in biogas upgrading to value added products: A review

Cited by 61 publications

References 141 publications

Closing the Carbon Cycle with Dual Function Materials

Closing the Carbon Cycle with Dual Function Materials

Eco-Techno-Economic Analysis of Methanol Production from Biogas and Power-to-X

Techno-economic Analysis of Biogas Conversion to Liquid Hydrocarbon Fuels through Production of Lean-Hydrogen Syngas

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