Dürr Megtec provides custom-designed gas cleaning solutions for the metallurgical industry. Gas cleaning for acid plants, furnaces and converters: Wet electrostatic precipitators for collecting fine particulate and sulfuric acid mists from SO2-rich gas streams. Wet and dry electrostatic precipitators for reduction of particulate from furnace and converter gas streams. Acid gas control with wet absorbers.
Modern production method of nitric acid production may lead to generation of several different gaseous emission components, such as nitrogen oxides (NOx), ammonia NH3 and nitrous oxide N2O. Nitrogen monoxide is an intermediate gaseous product in manufacturing of nitric acid HNO3. NO is formed in a catalytic reaction between ammonia and molecular oxygen O2. But undesirable side reactions may result in formation of nitrogen dioxide NO2 and nitrous oxide N2O. The NO and NO2 emissions can be reduced by use of Selective...
Emissions of silicon tetrafluoride, hydrochloric acid, hydrofluoric acid, chlorine from silica glass manufacturing and coating. Emergency scrubbing. Drawing Tower off-gas emissions. High temperature emissions of particulate and acid gases from furnaces. Hydrochloric acid recovery and re-concentration.
Anguil thermal and catalytic oxidizer systems are used on various applications throughout the chemical processing industry for emission abatement. Our experience includes applications on tank vents, amine tail gases, API separators, acid gases, inert streams and more. Regulatory Compliance Guaranteed, Seamless Process Integration, Efficient Destruction Technologies, Advanced System Controls.
The process control of a sulphuric acid plant needs good and reliable detection of gas phase sulphur dioxide (SO2). To measure SO2 is a challenge due to the corrosive environment and high concentration of SO2. Several places in the process needs to be monitored and to transport the sample gas is difficult. A large dynamic range is needed as the SO2 concentration can vary between 15% volume and a few mg/m3. Most systems installed need a lot of maintenance, sometimes as often as every day.
Plants within the semiconductor and circuit manufacturing industry deals manufacture semiconductors, computers, printed circuit boards, and other very small electronic components, including transistors, capacitors, inductors, resistors, diodes, insulators and conductors. Semiconductor manufacturing process emissions and pollution control challenges include VOC abatement; acid gas scrubbing; fluid handling; filtration; and laboratory fume hood exhaust.
In Fluid Catalytic Cracking (FCC)processes, widely used in oil refineries, the separation and recovery of powder catalysts is a major concern. Particularly, the concentration of catalyst after the FCC regenerator is usually over 150 mg/Nm3. Since these levels of emissions didn`t represent any environmental harm in the past, they were not controlled by any separator or filter. Plant managers main concern was to clean a fraction of the gas to produce energy in a Turbo Expander, or similar, while concentrating the...
A modern production method of nitric acid may lead to a generation of several different gaseous emission components, such as nitrogen oxides (NOx), ammonia NH3 and nitrous oxide N2O. Nitrogen monoxide is an intermediate gaseous product in the manufacturing of nitric acid HNO3. NO is formed in a catalytic reaction between ammonia and molecular oxygen O2. But undesirable side reactions may result in a formation of nitrogen dioxide NO2 and nitrous oxide N2O.
The recovery of fertilizers typically after drying tunnels or drum dryers is associated with a high load of particulates and very humid gas streams. The recovery of these products is commonly performed by dryer cyclones as they allow for a direct powder capture and avoid filter clogging due to condensation. Arrangements with cyclones and/or with bag filters are usual in the industry.
In most combustion process atmospheric nitrogen reacts with oxygen in high temperature conditions to produce nitrogen oxides (NOx). Total NOx production is the sum of nitrogen monoxide NO and nitrogen dioxide NO2. The emissions of these gases are controlled through setting of emission limit values (ELVs) for power plants.
Steel and ferroalloysmanufacturing processes involve high temperature exhaust streams, often at more than 900ºC. Typically, the gas flows from the furnace (usually electric arch type) and goes into a gas conditioning tower to cool down below 200ºC so that it can be treated by a Bag Filter. It`s also common to have ESP´s as end dedusters that can be preceded by a multicyclone serving as pre-separators.
The furniture manufacturing industry includes facilities that manufacture household furniture; office furniture; mattresses, shades, and blinds; custom architectural woodwork and millwork; and institutional furniture. CECO offers a wide range of safe, clean and efficient systems and solutions designed to meet a variety of air emissions and pollution control challenges, including mist elimination; volatile organic compound (VOC) abatement; acid gas scrubbing; dry particulate filtration; and industrial dust, fume,...
Measurement of SO2, sulfuric acid mist and greenhouse gas emissions from sulfuric acid plants requires careful selection of instrumentation. Ecotech offers a complete monitoring solution tailored to this industry.
The food manufacturing industry contains companies involved in processing raw food materials, packaging, and distributing them. This includes fresh, prepared foods as well as packaged foods. CECO delivers proven products and systems for a wide range of emission control, filtration and fluid handling challenges including volatile organic compound (VOC) abatement; mist elimination; acid gas scrubbing; dry particulate filtration; industrial dust; fume, mist and air handling systems; fluid handling; filtration; and...
The combustion operations the iron and steel processes produce emissions which are subject to strict environmental regulations. Plants are required to monitor and control these emissions. This also provides process efficiency benefits.
We have developed many flow meters and controllers to measure the emissions from landfills and other green house gas producers, in addition to being a long standing leader in the testing of emissions for large engines. Water treatment is also an important driver for the company as we continue to develop innovative solutions for waste water treatment.
Mining & Quarrying involves the extraction of valuable minerals or other geological materials from the earth, including metals, coal, oil shale, gemstones, limestone, dimension stone, rock salt, potash, gravel, and clay. CECO has the proven expertise to deliver proven products and systems for a wide range of emission control, air filtration and fluid handling challenges including volatile organic compound (VOC) abatement systems; dampers and expansion joints; dry particulate filtration; industrial dust, fume,...
Focuses on medium NOx, NOx-related and multigas-concentrations up to 5’000 ppm where flexibility is a central requirement. Parameters included are NO, NO2, NOx, NH3, NOx-amines, O2 and CO2. Typical supported applications are industrial emission monitoring and gas manufacturing control.
For PM emission control in high temperature exhaust streams, such as those from fuel oil boilers, common dedusters like Bag filters, have very high maintenance costs. The diesel and fuel oil fly ash can be quite sticky and clog to filter elements, which can be minimized with costly protection reagents or frequent filter elements changes. Flue gas cooling is needed in front of the filter when temperatures are higher than 200 ºC.