Development of airlift bubble column dispersed with micro-bubbles

Autor:	Keiji Yasuda, Yufei Wang, Yasuhito Kawase, Koichi Haneda, Yoshiyuki Bando, Tomokiyo Takeyama, Testuya Naito
Rok vydání:	2010
Předmět:	Bubble column Ozone General Chemical Engineering Flow (psychology) Airlift Thermodynamics Mechanics Decomposition Volumetric flow rate Physics::Fluid Dynamics Draft tube chemistry.chemical_compound chemistry Mass transfer Astrophysics::Galaxy Astrophysics Physics::Atmospheric and Oceanic Physics
Zdroj:	The Canadian Journal of Chemical Engineering.
ISSN:	1939-019X 0008-4034
DOI:	10.1002/cjce.20305
Popis:	Micro-bubbles were dispersed in the bubble column with draft tube, and the length and diameter of draft tube were changed. The flow characteristics in air-water system were measured. Ozone gas and methylene-blue aqueous solution were used, and the decomposition performance was examined. With increasing draft tube length, both the gas holdup and liquid velocity in the annular section increased. When the diameter ratio of draft tube to column was about 0.5, both the gas holdup and liquid circulation flow rate had maxima. For the decomposition by using ozone, the installation of draft tube enhanced the mass transfer and decomposition performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::930515dbe39465a9d5fc91cb8c196f17 https://doi.org/10.1002/cjce.20305 Zobrazit plný text záznamu Plný text