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Energies 2017, 10(7), 927;

Design of Ecological CO2 Enrichment System for Greenhouse Production using TBAB + CO2 Semi-Clathrate Hydrate

National Institute of Advanced Industrial Science and Technology (AIST), Central 5, 1-1-1, Higashi, Tsukuba, Ibaraki 305-8565, Japan
Mitsui Engineering & Shipbuilding, Co., Ltd., 16-1, Tamahara 3, Tamano, Okayama 706-0014, Japan
National Agriculture and Food Research Organization, 3-1-1 Kannondai, Tsukuba, Ibaraki 305-8666, Japan
Graduate School of Environment, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
Graduate School of Engineering, The University of Tokyo, 73-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Present address: College of Bioresource Sciences, Nihon University, Tokyo 113-8656, Japan
Authors to whom correspondence should be addressed.
Academic Editor: Richard Coffin
Received: 15 April 2017 / Revised: 1 June 2017 / Accepted: 29 June 2017 / Published: 4 July 2017
(This article belongs to the Special Issue Methane Hydrate Research and Development)
Full-Text   |   PDF [1253 KB, uploaded 5 July 2017]   |  


This paper proposes an innovative CO2 enrichment system for crop production under a controlled greenhouse environment by means of tetra-n-butylammonium bromide (TBAB) + CO2 semi-clathrate hydrate (SC). In this system, CO2 is captured directly from exhaust gas from a combustion heater at night, which can be used for stimulating photosynthesis of crops in greenhouses during daytime. Although the gas capacity of TBAB + CO2 SC is less than that of CO2 gas hydrate, it is shown that TBAB + CO2 SC can store CO2 for CO2 enrichment in crop production even under moderate pressure conditions (<1.0 MPa) at 283 K. View Full-Text
Keywords: CO2 separation; CO2 storage; flue gas; gas hydrate; horticulture CO2 separation; CO2 storage; flue gas; gas hydrate; horticulture

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Takeya, S.; Muromachi, S.; Maekawa, T.; Yamamoto, Y.; Mimachi, H.; Kinoshita, T.; Murayama, T.; Umeda, H.; Ahn, D.-H.; Iwasaki, Y.; Hashimoto, H.; Yamaguchi, T.; Okaya, K.; Matsuo, S. Design of Ecological CO2 Enrichment System for Greenhouse Production using TBAB + CO2 Semi-Clathrate Hydrate. Energies 2017, 10, 927.

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