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Doosan Lentjes super critical 300 MW CFB for low grade coals
In cooperation with its parent company DHI and supported by Doosan Babcock, Doosan Lentjes has developed a reference design for a 300 MW class SC-CFB boiler utilizing low grade coal. The activities have been backed by CFD analysis and physical model testing. The proven pantleg design, an opposed arrangement of 2x2 cyclones and integrated FBHE’s are the main features of the combustor. The flue gas leaving the cyclones enters into a cross-over duct leading to the inlet of the convective pass. The convective pass accommodates most of the heating surfaces. Due to the elevated steam temperatures it has become necessary to arrange a pendent type superheater in the upper part of the combustor. Coal and limestone are fed on the circulated ash flow and enters via 2x4 ducts into the combustor. Flue gas, primary and secondary air system has been designed according to a 2x 60 % approach thus enabling part load operation in case of unavailability of one fan or one rotary air preheater.
Revision Date: 1/8/2019
Tags: 221118 - Other Electric Power , 221112 - Fossil Fuel 化石燃料, Doosan Lentjes, Boiler
High efficiency biomass CFB boilers for the Asian market
This paper presents the design aspects of CFB boilers, co-fired with biomasses, by considering the selection of steam conditions, process design and specifics of boiler auxiliary equipment selection, as well as, the emissions control systems for those biomass co-firing applications. In this context, the experience with CFB boilers working with high steam conditions was presented. Doosan Lentjes delivered cutting-edge CFB technology and flue gas cleaning (FGC) technology at the Provence CFB Power Station in Gardanne, France. Doosan Lentjes work formed part of a comprehensive coal-to-biomass conversion. This approach contributes to owner commitment to clean, high performance energy production, and is expected to reduce their CO2 balance by 600.000 tons per year. This CFB concept itself proved to sufficiently fulfil typical requirements on gaseous emissions without additional flue gas cleaning equipment (except bag house or ESP). Nevertheless, just in case due to specific local regulation very low emission limits are set up, the plant layout can be easily added by optional SNCR or SCR and lime or sodium bicarbonate powder injection to further reduce the low raw gas emissions of the biomass CFB combustion to figures of below 50 mg/Nm3 .
Revision Date: 1/8/2019
Tags: 221117 - Biomass Power , 221118 - Other Electric Power , Doosan Lentjes, Boiler, Scrubber, Precipitator, Fabric Filter
Doosan Lentjes supplying 2 wet FGD systems in Romania
In 2018, Doosan Lentjes in a consortium with Elsaco Electronic was awarded the turnkey contract to deliver a modern flue gas desulphurisation system for a lignite-fired power plant located in Romania. CET Govora S.A. owns and operates a 2 x 345 MWth lignite-fired power plant located in Ramnicu Valcea, Romania. Against the background of stringent European emissions legislation as per the 2010/75/ EU on industrial emissions (IED), the plant owner is required to install modern environmental equipment. With this in mind, Doosan Lentjes and Elsaco Electronic, a consortium of companies, were awarded a turnkey contract to retrofit the two existing boilers C5 & C6 with an advanced flue gas desulphurisation (FGD) system. In order to deliver on both environmental and economic objectives, the proven wet limestone FGD method being defined as BAT (Best Available Technology) will be applied. The project will help the customer to secure ongoing operation permissions for their two boilers. Doosan Lentjes’ scope of work in the consortium will include engineering, the delivery of key equipment, as well as, advisory services for erection and supervision of commissioning.
Revision Date: 1/8/2019
Tags: 221112 - Fossil Fuel 化石燃料, 221118 - Other Electric Power , CET Govora, Doosan Lentjes, Boiler, FGD, Limestone, Romania
High efficiency biomass CFB boilers for the Asian market
This paper presents the design aspects of CFB boilers, co-fired with biomasses, by considering the selection of steam conditions, process design and specifics of boiler auxiliary equipment selection, as well as, the emissions control systems for those biomass co-firing applications. In this context, the experience with CFB boilers working with high steam conditions was presented Doosan Lentjes delivered cutting-edge CFB technology and flue gas cleaning (FGC) technology at the Provence CFB Power Station in Gardanne, France. Doosan Lentjes work formed part of a comprehensive coal-to-biomass conversion. This approach contributes to owner commitment to clean, high performance energy production, and is expected to reduce their CO2 balance by 600.000 tons per year. This CFB concept itself proved to sufficiently fulfil typical requirements on gaseous emissions without additional flue gas cleaning equipment (except bag house or ESP). Nevertheless, just in case due to specific local regulation very low emission limits are set up, the plant layout can be easily added by optional SNCR or SCR and lime or sodium bicarbonate powder injection to further reduce the low raw gas emissions of the biomass CFB combustion to figures of below 50 mg/Nm3
Revision Date: 1/10/2019
Tags: 221117 - Biomass Power , Doosan Lentjes, Boiler, Fabric Filter, Control
Doosan Lentjes to Supply Fabric Filters in the Czech Republic
Doosan Lentjes signed a contract for the supply of fabric filters for a power plant in Chvaletice, Czech Republic. The main contractor is the local company ZK Termochem.
Revision Date: 3/3/2020
Tags: 221112 - Fossil Fuel 化石燃料, Sev.en Energy, Doosan Lentjes, Fabric Filter, Boilers, Flyash, Flyash Transport System, Supply, Power Generation, Emission Legislation, Retrofitting, Engineering, Czech Republic