Kinetic study of the hydration of magnesium oxide for a chemical heat pump

Kato, Yukitaka; Yamashita, Norimichi; Kobayashi, Kei; Yoshizawa, Yoshio

doi:10.1016/1359-4311(96)00009-9

Cited by 152 publications

(81 citation statements)

References 8 publications

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“…Saito et al [7] calculated the energy efficiencies (enthalpy efficiency and exergy efficiency) for both continuous-type and storage-type organic CHP systems whose design parameters are summarized in Tab. 3.…”

Section: System Design and Evaluation Of Performance And Economymentioning

confidence: 95%

“…It can not only improve the quality of heat, but also realize heat storage [2]. The chemical reaction system plays an important role in absorbing and releasing the thermal energy [3]. The advantages of high energy storage capacity, long storage time, and low heat losses suggest that CHPs are a strong candidate for energy upgrading of intermittent low-grade heat as well as energy storage.…”

Section: Introductionmentioning

confidence: 99%

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Advances in Organic Liquid‐Gas Chemical Heat Pumps

Huai

et al. 2011

Chem Eng & Technol

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Compared with inorganic chemical heat pumps (CHPs), organic liquid-gas CHPs are more amenable to be run as a continuous process because the reactants and products can be fed or removed continuously. Therefore, increasing attention has been paid to investigations of CHPs using the organic liquid-gas reaction system. Relevant research topics involved reaction catalyst, chemical reaction kinetics, reactive distillation, energy efficiency evaluation, economic analysis, etc. Nevertheless, the research on an organic liquid-gas CHP system is still in the elementary stage. A detailed review on the current research status of catalyst-assisted CHPs employing an organic liquid-gas reaction system has been performed. Existing problems are identified and future research directions are proposed.

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Section: System Design and Evaluation Of Performance And Economymentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Advances in Organic Liquid‐Gas Chemical Heat Pumps

Huai

et al. 2011

Chem Eng & Technol

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“…A previous kinetic study using a thermobalance showed that the heat pump could be used as a heat ampli"er to transform a heat source at 70}903C to a heat at 100}1503C by hydration as a result of a heat storage at 3503C by dehydration (Kato et al, 1996;1998a, 1999. The thermal performance of the heat pump was also demonstrated using a laboratory-scale reactor bed containing 1.8 kg of reactant (Kato et al, 1988b).…”

Section: Introductionmentioning

confidence: 99%

Application of a chemical heat pump to a cogeneration system

Kato

Yoshizawa

2001

Int. J. Energy Res.

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SUMMARYThe feasibility of a proposed system that combines a magnesium oxide/water chemical heat pump and a diesel engine as a cogeneration system is discussed based on experimental results. The combined system is intended to utilize the waste heat discharge from the engine by means of the chemical heat pump and to level the heat supply load of the engine, allowing enhanced energy utilization. The thermal performance of the chemical heat pump in the cogeneration system is estimated based on the results of a packed-bed experiment. The estimation indicates that by storing the waste heat from the engine during low demand periods, the cogeneration system can produce more than several times the standard thermal output of the diesel engine during peak demand periods.

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“…Results and discussion Figure 1 One of the vital factors in gas-solid carbonation reaction is the presence of water and there have been numerous observations where water acts as a catalyst [31][32][33][34]. Therefore, we have also used water (0.1 ml) for the MgO-CO 2 reaction.…”

Section: -40mentioning

confidence: 99%

An experimental investigation of mesoporous MgO as a potential pre-combustion CO2 sorbent

Kumar

Saxena

Drozd

et al. 2015

Mater Renew Sustain Energy

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We examined the CO 2 capture capacity of mesoporous MgO (325 mesh size, surface area = 95.08 ± 1.5 m 2 /g) as a potential pre-combustion CO 2 sorbent. Our results show that 96.96 % of MgO was converted to MgCO 3 at 350°C and 10 bars CO 2 pressure. The sorbent could be completely regenerated at 550°C under argon flow. The sorption rate parameters such as surface area and pore size were investigated.

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Kinetic study of the hydration of magnesium oxide for a chemical heat pump

Cited by 152 publications

References 8 publications

Advances in Organic Liquid‐Gas Chemical Heat Pumps

Advances in Organic Liquid‐Gas Chemical Heat Pumps

Application of a chemical heat pump to a cogeneration system

An experimental investigation of mesoporous MgO as a potential pre-combustion CO2 sorbent

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