acid gas Applications

Gas monitoring instruments and systems for nitric acid process

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 Catalytic Reduction unit (SCR), which deploys ammonia gas NH3 to limit emissions of NO and NO2. A modern nitric acid plant needs to monitor the emissions of these gases.

Acid Eddy Chemical Dilution Trough

Industrial Solution for gasification & synthetic gas

Gasification and synthetic gas production from various waste products are becoming increasingly important energy recovery technologies. Often, the synthetic gas contains various hazardous contaminants including H2S, HCl and other acids, heavy metals, and tars. The gas requires cleaning before it is introduced in the engine or boiler. Most of these processes generate significant concentration of tars. The tars can vary from very low molecular weight to large and complex chains.

Gas monitoring instruments and systems for process NOx measurement

Nitric acid HNO3 is an important intermediate reagent for production of several important end products, such as fertilizers, explosives, dyestuffs/pigments, pesticides, pharmaceuticals, photographic materials, plastics, and synthetic fibers. At nitric acid manufacturing plants, the Gasmet™ FTIR Gas Analyzer can be used to measure several gaseous components from the process stream for purposes of process control. A single system can be used to measure the high levels of nitrogen monoxide NO and nitrogen dioxide NO2, as well as water vapor H2O, nitrous oxide N2O, carbon monoxide CO, carbon dioxide CO2 and ammonia NH3. The fixed installation products for these purposes are the Gasmet™ CEM II measurement system, and the Gasmet™ FCX Gas Analyzers, both of which utilize the FTIR measurement technique for simultaneous multicomponent analysis of the sample gas.

Salt Water Disposal - Operational improvements and savings

Adding Wilsa ElectroWaveTM technology to existing separation equipment at Salt Water Disposal Wells (SWD) or Salt Water Injection Wells (SWIW) has a profound impact on the amount of oil can be recovered without using chemicals. Additionally there is a host of operational improvements and savings that result from the Wilsa Effect. Oil free solids settle out faster for cleaner, clearer brine for injection. Cleaner brine means less injection pressure and fewer acid jobs in the formation. Pump packings last longer by reducing solids and abrasive elements from the brine. More targeted solids settling allows for less tank clean outs. All of this adds up to significant operational savings.

Applications and Air Pollutants Removed for Mineral Products Industry

Removal of acid gases and particulate from cement, brick and other product kilns. Mineral product dryers including coal. Hot mix asphalt plant particulate control. Sulfur dioxide and hydrochloric acid gas removal.

Air pollution control solution for the particulate matter

Regulations around the globe are becoming more and more stringent for particulate emissions. Macrotek offers some of the most efficient wet and dry technologies to meet the latest EPA, EU, and MOE standards. Often, particulate collection is combined with acid gas removal. Our most advanced wet-dry system meets and exceeds the most stringent regulations for both hazardous gases and particulate.

Applications and Air Pollutants Removed in the Petroleum/Petrochemical Industry

Scrubbing of Hydrogen sulfide, mercaptans and other organosulfur compounds from sour gas and other sources. Proprietary regenerative scrubbing chemistries for hydrogen sulfide removal with sulfur production. By-product production systems for producing sodium hydrosulfide (Nash) from hydrogen sulfide. Sulfur dioxide scrubbing. Recover catalyst dust from FCC units. HCL storage tank vent scrubbing. Removal of HCL and particulate from thermal oxidizers burning chlorinated plastics. Marine drilling platforms sulfur dioxide thermal oxidizer emissions.  Asphalt plant scrubbers and hydrogen sulfide emissions from holding tanks. Pilot plant scrubber systems for hydrogen sulfide. Removal of halogenated and sulfur bearing gaseous compounds from high temperature thermal oxidizers and drilling platforms waste. Well drilling hydrochloric acid storage tanks.

Applications and Air Pollutants Removed in the Food Products Industry

Complete line of dry and wet collectors for applications requiring removal of particulate from dryers, mixers, blenders and tanks. Odor control wet chemical scrubbers with liquid or gas phase oxidation chemistries and Bioscrubber systems to control odoriferous food products, ingredients and flavor emissions from processes and dryers including fish odors. Corn acidulation and starch processing acid and ethylene oxide emissions. Remove smoke house emissions and particulate, grease and odors from meat cookers and fryers. Ethanol emissions from baking ovens. Ammonia from refrigerant evacuation. Sodium hydroxide mists from CIP cleaning of tanks and equipment. Waste heat recovery and more. 

Applications and Air Pollutants Removed in the Chemical, Pharmaceutical and Plastics Industries

Supplying for over 35 years reliable air pollution control equipment and systems for removal of all gaseous compounds, particulate and odors from chemical process operations, reactors, dryers, calciners, membrane cells, pharmaceutical reactors and tablet dryers, crystallizers, vessel filling and storage vent emissions, emergency scrubbing of high concentration gas releases from cylinders, vacuum pump emissions, Quench /scrubber systems for acid gases and particulate from high temperature thermal oxidizers.  Gaseous emissions from piloting operations and research lab hoods. Specialty NOx abatement for explosives manufacturing and other process operations. Recovery and re-concentration of acids and other gaseous contaminants including by-product production.

Applications and Air Pollutants Removed in the Biomass Industry

Flue gas particulate and acid gases from biomass and bagasse boilers. Removal of ethanol, CO2 scrubbers and yeast cells from fermenters.  Removal of ash particulate, tars, acid gases and ammonia from steam reformers, gasifiers, pyrolosis units and cooling of syngas streams to acceptable limits to enable use as a fuel source for power generation or as a feedstock for chemical products. For tar removal, combination technologies can be used including oil based scrubbing solutions to reduce waste water generation. Ethanol and yeast cell removal from fermenter off-gases. Methanol from processing operations. Hydrogen sulfide removal on landfill, digester and producer gases with regenerable chemistries. Odor control for biomass storage facilities including carbon monoxide removal in wood chip storage areas. 

Air Pollution Control Solution for the FGD - SO2

Flue Gas Desulfurization (FGD) involves the removal of sulfur dioxide and other acids from flue gases. Typical sources of acid gases include fossil fuel boilers, waste combustors, and other industrial applications such as refining and smelting. The Macrotek wet and dry FGD systems can achieve over 99% acid removal by using a variety of reagents, including caustic, sodium carbonate, lime and limestone, and waste alkaline solids or liquids.

Biogas Monitoring for the Renewable Energy Industry

AppliTek`s solutions in this field concentrate on the process efficiency of anaerobic digesters. Many existing digesters give unnecessary problems, which arise due to inadequacies in the process or process control system. AppliTek has developed a unique instrument to measure and control the key processes in the anaerobic fermentation. Compact gas analyzers with proprietary technology can be implemented to check the biogas yield.

Parameters: Volatile Fatty Acids - Alkalinity - pH - Bicarbonate

Gas parameters: CH4 - CO2 - O2 - H2S