Dynamic behaviour of integrated chemical looping process with pressure swing adsorption in small scale on-site H2 and pure CO2 production

Argyris, Panagiotis Alexandros; Wright, Andrew D.; Qazvini, Omid T.; Spallina, Vincenzo

doi:10.1016/j.cej.2021.132606

Cited by 21 publications

(5 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this work, the first assumption is that the dual Circulating Fluidized Bed (CFB) configuration can be usefully employed to build a PCLC reactor. For the sake of completeness, it can be considered that other types of reactors can be packed beds-see [9][10][11][12][13]. According to [8], the advantages of the dual Circulating Fluidized Bed configuration are the following:…”

Section: Pressurised Chemical Looping Combustor Design Methodologymentioning

confidence: 99%

“…As seen from Figure 1, compressed air is used to oxidize the oxygen carrier and then expanded in a turbo expander to produce electricity. Dealing with the coupling of the reactor with the turbo expander, different strategies can be adopted; among them, of interest is the analysis of the coupling with a choked flow turbine, including part load simulations (see [12][13][14]), when a sensitivity analysis was conducted on gas flow and particles concentration. This data could be used as inputs for the turbo expander model in Aspen.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor

et al. 2023

View full text Add to dashboard Cite

This paper provides a simple methodology for the design of the air reactor of a chemical looping combustor to optimize its characteristics when it is employed connected to a turbo expander to produce power. The design process, given a certain objective (e.g., electric power) defines the reactor specifics, namely height and diameter, taking into account the following aspects: solids inventory of the air reactor; gas velocity; air reactor transport disengaging height (TDH); solids concentration profile along the reactor height, dense bed height; freeboard height; pressure drop depending on air reactor injectors design and configuration. The total air reactor height was about 9.5 m, while the diameter was about 1.8 m. The total inventory was about 10,880 kg; while the circulation rate in the air reactor was about 110 kg/s. The operating pressure and temperature were, respectively, 12 bar and 1200 °C. The average velocity of the gases inside the reactor was about 4 m/s. The fluidization regime resulted to be comprised between turbulent and fast fluidization. Further work must be directed into the estimate of the pressure drop of the reactor, which will affect the plant efficiency in a considerable way.

show abstract

Section: Pressurised Chemical Looping Combustor Design Methodologymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor

et al. 2023

View full text Add to dashboard Cite

show abstract

“…The excess of feed vapor is required in order to avoid carbon deposition on the catalyst surface, but the need to produce large quantities of superheated vapor represents another large energy sink, limiting process efficiency and further contributing to high CO 2 emissions. Because of the high capital costs of equipment and its unsuitability, however, steam reforming technology is indicated for large-scale productions [45] (400 ton/d or above [46]), and is not suitable for medium-and small-scale plants (50 ton/d or below) [45], which would be needed to allow the distributed production of hydrogen.…”

Section: Steam Reformingmentioning

confidence: 99%

New Perspectives on Catalytic Hydrogen Production by the Reforming, Partial Oxidation and Decomposition of Methane and Biogas

Boscherini,

Storione,

Minelli

et al. 2023

Energies

View full text Add to dashboard Cite

The article provides a short review on catalyst-based processes for the production of hydrogen starting from methane, both of fossil origin and from sustainable processes. The three main paths of steam- and dry-reforming, partial oxidation and thermo-catalytic decomposition are briefly introduced and compared, above all with reference to the latest publications available and to new catalysts which obey the criteria of lower environmental impact and minimize the content of critical raw materials. The novel strategies based on chemical looping with CO2 utilization, membrane separation, electrical-assisted (plasma and microwave) processes, multistage reactors and catalyst patterning are also illustrated as the most promising perspective for CH4 reforming, especially on small and medium scale. Although these strategies should only be considered at a limited level of technological readiness, research on these topics, including catalyst development and process optimization, represents the crucial challenge for the scientific community.

show abstract

“…Several different materials were successfully tested to separate CO 2 from CH 4 and show a good compatibility with the process conditions of the CO 2 conversion reactions [17][18][19][20]. In particular, temperature swing adsorption (TSA) appears as an interesting solution as it allows obtaining high-purity products without requiring special process equipment, as in the case of vacuum pressure swing adsorption [21].…”

Section: Introductionmentioning

confidence: 99%

A System for the Combined Carbon Capture and Utilization to Produce Renewable Methanol from Biogas

Moioli,

Schildhauer

2024

Chemie Ingenieur Technik

View full text Add to dashboard Cite

Coupling of biogas upgrading and power‐to‐X is challenging due to the intermittent cheap energy availability. A system was designed that overcomes the technical challenges in this coupling. This is possible by alternating biogas upgrading and methanol synthesis in a reactor operating both as sorption‐enhanced synthesis reactor and as upgrading unit by pressure swing adsorption. It was observed that this concept is feasible in both fixed‐ and fluidized‐bed reactors, and the potential for economic performance improvement was quantified in approximately 20 % increase of the internal rate of return.

show abstract

Dynamic behaviour of integrated chemical looping process with pressure swing adsorption in small scale on-site H2 and pure CO2 production

Cited by 21 publications

References 53 publications

Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor

Dimensioning Air Reactor and Fuel Reactor of a Pressurized Chemical Looping Combustor to Be Coupled to a Gas Turbine: Part 1, the Air Reactor

New Perspectives on Catalytic Hydrogen Production by the Reforming, Partial Oxidation and Decomposition of Methane and Biogas

A System for the Combined Carbon Capture and Utilization to Produce Renewable Methanol from Biogas

Contact Info

Product

Resources

About