Filtration of dust particulates using a new filter system with louvers and sublouvers

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Title:	Filtration of dust particulates using a new filter system with louvers and sublouvers
Authors:	蕭述三;Chen, Yi-Shun;Hsiau, Shu-San;Lee, Hsuan-Yi;Chyou, Yau-Pin
Contributors:	秘書室
Keywords:	Applied sciences;Coal;Cold test;Collection efficiency;combustion;Dust filters;Dust particulate;Energy;Energy. Thermal use of fuels;Engines and turbines;Equipments for energy generation and conversion: thermal, electrical, mechanical energy, etc;Exact sciences and technology;filters;Filtration;fluidized beds;Fuels;gasification;Granular materials;Granules;mass flow;Moving granular bed filter;oils;Particulates;porosity;power plants;Rotational;Smaller-sized filter granules;synthesis gas;temperature
Date:	2012-09-01
Issue Date:	2026-04-23 11:57:09 (UTC+8)
Publisher:	Elsevier BV;Kidlington: Elsevier Ltd
Abstract:	摘要： ► A louver–sublouver moving granular bed filter was designed and tested. ► A trommel screen system was successfully integrated into the filtration system. ► Collection weight of trommel system has influence on the filtration efficiency. ► Filtration efficiency could be promoted by optimum operation parameters. Coal is a very important fuel since the supply of oil is quite limited, whereas coal is much more plentiful. The pressurized fluidized bed combustion (PFBC) and integrated gasification combined cycle (IGCC) systems are considered the best for advanced coal-fired power plants. However, the high temperature syngas produced by these systems contains many dust particulates which need to be filtered before entering the gas turbine. The moving granular bed is an important apparatus for the filtration of the hot gas and is currently under development. The goal of this study is to evaluate the performance of a moving granular bed filter designed to filter out coal particulates. We investigate the flow patterns of the filter granules, the collection efficiency, and the pressure drop under different filtration superficial velocities, mass flow rates of filter granules, rotational speeds of the trommel screen system, but with a fixed inlet dust concentration. All filtration system experiments were performed at room temperature. The results showed that using a filtration superficial velocity of 18.01m/min, mass flow rate of filter granules of 0.46kg/min, and rotational speed of 63rpm, the overall porosity of the filter granules decreased and the filter resistance and the collection efficiency increased, with an increase in the amount of smaller-sized filter granules in the bed. The test results apply to moving granular bed filters or other filtration systems functioning in high-temperature environments and are expected to serve as the basis for future research. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-09-01 出處： Fuel (Guildford), 2012-09, Vol.99, p.118-128 版權： 2012 Elsevier Ltd 版權： 2015 INIST-CNRS 識別號： ISSN: 0016-2361 識別號： EISSN: 1873-7153 識別號： DOI: 10.1016/j.fuel.2012.04.021
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