Mechanistic and kinetic study of thermolysis reaction with hydrolysis step products in Cu–Cl thermochemical cycle.
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| Title: | Mechanistic and kinetic study of thermolysis reaction with hydrolysis step products in Cu–Cl thermochemical cycle. |
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| Authors: | Thomas, Deepa1,2 (AUTHOR) deepat@barc.gov.in, Baveja, Neetu A.1 (AUTHOR), Shenoy, K.T.1 (AUTHOR), Joshi, J.B.2,3 (AUTHOR) |
| Source: | International Journal of Hydrogen Energy. Apr2021, Vol. 46 Issue 24, p12672-12681. 10p. |
| Subjects: | Thermolysis, Hydrolysis, Hydrogen production, Oxygen in water, Low temperatures |
| Abstract: | Copper–Chlorine cycle has been identified as the most prospective among the low temperature thermochemical cycles for hydrogen production. The cycle consists of two thermal reaction steps, one electrochemical step and a physical separation step. The two thermal reaction steps, hydrolysis and thermolysis are carried out in series for water splitting and oxygen production, respectively. The solid product from hydrolysis step Cu 2 OCl 2 enters the thermolysis step where it undergoes decomposition to CuCl and O 2. In the present work, thermolysis experiments were carried out in a laboratory scale horizontal furnace reactor with CuO–CuCl 2 equimolar mixture and Cu 2 OCl 2 in the temperature range of 470–575 °C. Experiments in furnace reactor show that, under otherwise same conditions, similar conversions are obtained with Cu 2 OCl 2 as well as with the equimolar mixture of CuO–CuCl 2. It was also observed that the conversion increased with an increase in CuCl 2 percentage in the reaction mixture. From the experimental data, an attempt has been made to provide insights into the reaction mechanism and kinetics. These results are expected to be useful for the design and scale-up of the thermolysis reactor. • Thermolysis experiments with products from the preceding hydrolysis step. • Thermolysis mechanistic study using isoconvertional analysis. • Two different pathways for integration of hydrolysis and thermolysis steps. [ABSTRACT FROM AUTHOR] |
| Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 149437005 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Mechanistic and kinetic study of thermolysis reaction with hydrolysis step products in Cu–Cl thermochemical cycle. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Thomas%2C+Deepa%22">Thomas, Deepa</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> deepat@barc.gov.in</i><br /><searchLink fieldCode="AR" term="%22Baveja%2C+Neetu+A%2E%22">Baveja, Neetu A.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shenoy%2C+K%2ET%2E%22">Shenoy, K.T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Joshi%2C+J%2EB%2E%22">Joshi, J.B.</searchLink><relatesTo>2,3</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Hydrogen+Energy%22">International Journal of Hydrogen Energy</searchLink>. Apr2021, Vol. 46 Issue 24, p12672-12681. 10p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Thermolysis%22">Thermolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrolysis%22">Hydrolysis</searchLink><br /><searchLink fieldCode="DE" term="%22Hydrogen+production%22">Hydrogen production</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+in+water%22">Oxygen in water</searchLink><br /><searchLink fieldCode="DE" term="%22Low+temperatures%22">Low temperatures</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Copper–Chlorine cycle has been identified as the most prospective among the low temperature thermochemical cycles for hydrogen production. The cycle consists of two thermal reaction steps, one electrochemical step and a physical separation step. The two thermal reaction steps, hydrolysis and thermolysis are carried out in series for water splitting and oxygen production, respectively. The solid product from hydrolysis step Cu 2 OCl 2 enters the thermolysis step where it undergoes decomposition to CuCl and O 2. In the present work, thermolysis experiments were carried out in a laboratory scale horizontal furnace reactor with CuO–CuCl 2 equimolar mixture and Cu 2 OCl 2 in the temperature range of 470–575 °C. Experiments in furnace reactor show that, under otherwise same conditions, similar conversions are obtained with Cu 2 OCl 2 as well as with the equimolar mixture of CuO–CuCl 2. It was also observed that the conversion increased with an increase in CuCl 2 percentage in the reaction mixture. From the experimental data, an attempt has been made to provide insights into the reaction mechanism and kinetics. These results are expected to be useful for the design and scale-up of the thermolysis reactor. • Thermolysis experiments with products from the preceding hydrolysis step. • Thermolysis mechanistic study using isoconvertional analysis. • Two different pathways for integration of hydrolysis and thermolysis steps. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of International Journal of Hydrogen Energy is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.ijhydene.2021.01.118 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 10 StartPage: 12672 Subjects: – SubjectFull: Thermolysis Type: general – SubjectFull: Hydrolysis Type: general – SubjectFull: Hydrogen production Type: general – SubjectFull: Oxygen in water Type: general – SubjectFull: Low temperatures Type: general Titles: – TitleFull: Mechanistic and kinetic study of thermolysis reaction with hydrolysis step products in Cu–Cl thermochemical cycle. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Thomas, Deepa – PersonEntity: Name: NameFull: Baveja, Neetu A. – PersonEntity: Name: NameFull: Shenoy, K.T. – PersonEntity: Name: NameFull: Joshi, J.B. IsPartOfRelationships: – BibEntity: Dates: – D: 06 M: 04 Text: Apr2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 03603199 Numbering: – Type: volume Value: 46 – Type: issue Value: 24 Titles: – TitleFull: International Journal of Hydrogen Energy Type: main |
| ResultId | 1 |
