Tri-reforming of Natural Gas Using CO2 in Flue Gas of Power Plants without CO2 Pre-separation for Production of Synthesis Gas with Desired H2/CO Ratios

Chen, Song; Pan, Wei; Srimat, Srinivas T.

doi:10.1007/978-1-4615-0773-4_18

Cited by 6 publications

(5 citation statements)

References 34 publications

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“…In general, CO 2 can be separated, recovered, and purified from flue gases of fossil‐fuel‐based power plants by two or more steps. This is mainly based on either absorption or adsorption or membrane separation which adds significant cost to the CO 2 conversion or sequestration system. Tri‐reforming is a synergetic combination of CO 2 reforming, steam reforming, and partial oxidation of natural gas.…”

Section: Co2 Conversion To Carbonaceous Fuelsmentioning

confidence: 99%

CO₂chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

Najafabadi

2013

Int. J. Energy Res.

158

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SUMMARY In the fossil‐fuel‐based economies, current remedies for the CO2 reduction from large‐scale energy consumers (e.g. power stations and cement works) mainly rely on carbon capture and storage, having three proposed generic solutions: post‐combustion capture, pre‐combustion capture, and oxy fuel combustion. All the aforementioned approaches are based on various physical and chemical phenomena including absorption, adsorption, and cryogenic capture of CO2. The purified carbon dioxide is sent for the physical storage options afterwards, using the earth as a gigantic reservoir with unknown long‐term environmental impacts as well as possible hazards associated with that. Consequently, the ultimate solution for the CO2 sequestration is the chemical transformation of this stable molecule to useful products such as fuels (through, for example, Fischer–Tropsch chemistry) or polymers (through successive copolymerization and chain growth). This sustainably reduces carbon emissions, taking full advantage of CO2‐derived chemical commodities, so‐called carbon capture and conversion. Nevertheless, the surface chemistry of CO2 reduction is a challenge due to the presence of large energy barriers, requiring noticeable catalysis. This work aims to review the most recent advances in this concept selectively (CO2 conversion to fuels and CO2 copolymerization) with chemical engineering approach in terms of both materials and process design. Some of the most promising studies are expanded in detail, concluding with the necessity of subsidizing more research on CO2 conversion technologies considering the growing global concerns on carbon management. Copyright © 2013 John Wiley & Sons, Ltd.

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Section: Co2 Conversion To Carbonaceous Fuelsmentioning

confidence: 99%

CO₂chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

Najafabadi

2013

Int. J. Energy Res.

158

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“…The study demonstrated a reduction in the overall CO 2 footprint by over 65%, besides a 20% reduction in operating costs. Numerous research studies have suggested using a combined reforming process (CRM) wherein DRM is combined with conventional technologies like SRM and POX to address the DRM challenges. ,− In another study, Baltrusaitis et al studied SRM, DRM, ATR, and reverse water gas shift reaction (RWGSR) combinations. Luyben et al explored the design trade-offs of the DRM conditions on the downstream processes while conducting a sensitivity analysis on the methane conversion, CO 2 consumption, and energy consumption in various processes within a GTL plant.…”

Section: Introductionmentioning

confidence: 99%

“…Experimental and computational studies by Song et al 19 prove that the tri-reforming (TRM, a combination of SRM, POX, and DRM) process can produce a syngas ratio of 1.5−2 while eliminating the formation of soot (solid carbon) in the reactor. Similar results were seen by Kang et al, 22 where the TRM proved more favorable to produce syngas than DRM.…”

Section: ■ Introductionmentioning

confidence: 99%

Decarbonizing the Gas-to-Liquid (GTL) Process Using an Advanced Reforming of Methane Process

Ataya,

Challiwala,

Ibrahim

et al. 2023

ACS Eng. Au

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The gas-to-liquid (GTL) process is a promising technology for converting natural gas into synthetic fuels and chemicals. However, its high carbon dioxide (CO 2 ) emissions present significant challenges. Methane reforming contributes up to 60% of GTL's CO 2 emissions, necessitating decarbonization. Dry reforming of methane (DRM) shows potential for CO 2 conversion. Still, it faces challenges such as high energy requirements, catalyst deactivation, and an incompatible hydrogen-to-carbon monoxide (H 2 /CO) ratio for GTL processing, requiring extensive research. A previous study proposed a two-reactor system known as CARGEN that co-produces solid carbon (in the form of multiwalled carbon nanotubes [MWCNTs]) and syngas, reducing CO 2 emissions by 40% compared to the benchmark autothermal reforming (ATR) process through life cycle assessment (LCA) studies. This paper presents a comprehensive simulation of the advanced DRM process used to retrofit an existing ATR-based GTL plant�initially, a 50,000 bbl./day ATR-based GTL plant is simulated. The advanced reformer process replaces ATR through retrofitting. Comparative analysis shows a remarkable 73% reduction in net CO 2 emissions and the potential coproduction of 243 kg of MWCNTs per barrel of syncrude, equivalent to 12,150 tons/day of MWCNTs. However, the advanced reformer-based GTL plant requires 61% more natural gas feedstock while utilizing 79% less oxygen than the ATR-based plant. Furthermore, a separate techno-economic analysis examines the advanced reformer-based GTL plant based on a calculation for 13,100 tons/day of CO 2 feedstock to co-produce 3,277 tons/day of MWCNTs and 50,000 barrels/day of syncrude. This analysis, considering a 25% tax rate, 25-year plant life, and zero salvage value, demonstrates an attractive 10-year payback period at selling prices of 80 USD/bbl. for syncrude and 10 USD/kg for MWCNTs. These results provide a process system-level perspective, showcasing the advanced reformer-based GTL plant (CARGEN Process) as an effective solution for low-carbon GTL production.

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“…In addition to the existing challenges on the lab-scale conditions, e.g., (i) low gas hour space velocity (GHSV; 10–100 L g cat –1 h –1 ), (ii) low pressures (∼1 bar), (iii) dilute feed (reactants/inert gas ≥4), etc., ,,, DRM catalysts are sensitive to feedstock impurities, and a CO 2 capture and purification system is essential to avoid catalyst poisoning. The capture and purification of imported or recovered CO 2 from industrial sources require additional 2.1–5.7 MJ/kg CO 2 based on the technology employed. , More importantly, the current stats are based on the lab-scale conditions under dilute conditions. With the scale-up, these limitations can play a significant role, and the amount of CO 2 sequestered may decrease further.…”

mentioning

confidence: 99%

“…The capture and purification of imported or recovered CO 2 from industrial sources require additional 2.1−5.7 MJ/kg CO 2 based on the technology employed. 38,46 More importantly, the current stats are based on the lab-scale conditions under dilute conditions. With the scale-up, these limitations can play a significant role, and the amount of CO 2 sequestered may decrease further.…”

mentioning

confidence: 99%

The Insignificant Role of Dry Reforming of Methane in CO₂ Emission Relief

2020

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Tri-reforming of Natural Gas Using CO2 in Flue Gas of Power Plants without CO2 Pre-separation for Production of Synthesis Gas with Desired H2/CO Ratios

Cited by 6 publications

References 34 publications

CO₂chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

CO₂chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

Decarbonizing the Gas-to-Liquid (GTL) Process Using an Advanced Reforming of Methane Process

The Insignificant Role of Dry Reforming of Methane in CO₂ Emission Relief

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Tri-reforming of Natural Gas Using CO2 in Flue Gas of Power Plants without CO2 Pre-separation for Production of Synthesis Gas with Desired H2/CO Ratios

Cited by 6 publications

References 34 publications

CO2chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

CO2chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

Decarbonizing the Gas-to-Liquid (GTL) Process Using an Advanced Reforming of Methane Process

The Insignificant Role of Dry Reforming of Methane in CO2 Emission Relief

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Product

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CO₂chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

CO₂chemical conversion to useful products: An engineering insight to the latest advances toward sustainability

The Insignificant Role of Dry Reforming of Methane in CO₂ Emission Relief