Filtration of high-temperature gases using ceramic candle filters. It can simultaneously remove particulate matter, NOx, and SOx from exhaust gases.
The BisCat ceramic filter, which incorporates a catalytic matrix, enables the removal of fine particles, acidic gases, dioxins, mercury, VOCs, and NOx. The filter element is chemically inert and corrosion-resistant. Gas purification can be achieved in one step. The BisCat ceramic catalytic filter not only processes fine particles and acidic gases like traditional candle filters but also uses a catalyst that effectively removes NOx by injecting ammonia in advance, eliminating the need for conventional selective catalytic reduction (SCR) systems. To achieve advanced exhaust gas regulations, the BisCat filter integrates three processes into one unit: - Dust removal - Removal of acidic components - Reduction of unburned hydrocarbons (THC) and NOx The ceramic filter element can significantly reduce dust emissions (to < 2 mg/Nm3) and demonstrates heat resistance even at high temperatures. Since cooling of the exhaust gas is unnecessary, there is no waste of thermal energy during the introduction phase.
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The filter element is cleaned online during operation by an independent compressed air pulse jet. To accommodate high flow rates, the filter element is placed in either a single-compartment or multi-compartment housing. Thanks to this structural technology, maintenance of a single module can be performed while continuing to operate other modules without completely interrupting the process. By injecting lime-based reagents, it is possible to suppress the emissions of inorganic gases such as HF, HCl, and SOx. The robust candle structure not only allows for surface filtration but also forms a first layer of reactive dust during the absorption process.
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Main advantages: - Low pressure drop - Safety ensured by dust monitoring system (broken bag detector) - Operation generates minimal dust - Low A/C ratio allows for extended n-1 operation - Baffle plates protect the candle from direct gas inflow into the raw gas compartment - Clean gas damper designed for low pressure drop - Easy assembly of candle pieces allows for quick installation - Elevating device installed on the top floor for handling candles and cleaning gas compartment covers - Long lifespan [Related] NOx removal by SCR: https://www.gea.com/en/products/emission-control/catalytic-gas-cleaning/scr-plants-nox-removal-denitrification/
Company information
GEA Japan provides a wide range of products and cutting-edge process technologies from the supply of individual equipment for liquid processing, concentration, drying, and powder processing to the provision of total solutions including plant engineering for industries such as dairy, beverages, brewing, food, pharmaceuticals, and chemicals, leveraging the extensive offerings of the global GEA Group. ≪About GEA Group≫ GEA is one of the world's largest suppliers of systems and components for the food, beverage, and pharmaceutical industries. Established in 1881, it focuses not only on machinery and plants but also on advanced process technologies, components, and comprehensive services. The GEA Group consists of five divisions, operates in 62 countries, and employs over 18,000 people. GEA's plants, processes, components, and services enhance the efficiency and sustainability of manufacturing processes worldwide. They also significantly contribute to reducing CO2 emissions, plastic usage, and food waste. In doing so, GEA makes a vital contribution towards a sustainable future in line with the company's purpose of "Engineering for a better world."
