12 products found
Pyro Green-Gas (formerly known as AirScience Technologies Inc.) Products
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AirScience Biogas and Landfill Gas Flares
—AirScience Technologies offers technologies for the remedial of unwanted emissions of biogas and landfill gas. Biogas is a mixture of methane (CH4) and carbon dioxide (CO2) with impurities such as water vapour, hydrocarbons, siloxanes, hydrogen sulfide (H2S), and organic sulfur. Biogas is toxic, odorous, explosive and most of all a very potent greenhouse gas and as such must not be vented to atmosphere. One major source of biogas is municipal solid waste landfills, as these landfills receive a large amount of organic waste, substantial amounts of biogas (land fill gas) is generated by the biological degradation of this mass of organic waste. Most jurisdictions have mandated the capture of landfill gas at the source and the destruction of that landfill gas through enclosed flame flares.
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AirScience - Biogas Flares
Anaerobic Digester (AD) biogas applications: For AD biogas applications enclosed flame flares are used to burn excess biogas from the process as well as to burn the full biogas production while the downstream biogas valorization system is stopped for maintenance or emergency conditions. The exhaust gas emissions meet the most stringent North American environmental requirements. This is achieved with combustion temperatures between 1000C and 1200C. The ...
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AirScience - Landfill Gas Flares
Landfill Gas Application: For landfill gas applications enclosed flame flare have been required for years for the destruction of landfill gas emissions. As more and more landfill gas is valorized through the production of electricity or the production of renewable natural gas (RNG), enclosed flame flares are used for emergency conditions and for excess gas ...
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Purifications - AirScience Desulfurization System
AirScience Technologies offers two desulfurization processes. The Ferrachel II Iron chelate process for high gas flows and high inlet hydrogen sulfide concentrations. Dry scrubbing catalyst for low inlet hydrogen sulfide concentrations. In cases where hydrogen sulfide concentrations of less than 100 ppmv are required, a dry scrubbing catalyst stage is required.
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AirScience - Model AST-AC/S01 - Biogas Dry Desulfurization Process System
Iron based desulfurization media has low cost and high desulfurization capacity as its main advantage, however the chemical reaction occurring during the capture of hydrogen sulfide tends to agglomerate the media pellets in larger chunks which render the spent media removal a time consuming chore. For this reason the tendency for landfill gas and biogas desulfurization has been to use activated carbon as the favored desulfurization ...
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Purifications - AirScience Dehumidification System
Depending on the utilization of the biogas or biogas derived natural gas, different degrees of dehumidification will be required. Generally the dew point required are as follows: Use in internal combustion engine for electric power generation: Dew point less than 12°C @ 1 atm. Use as low pressure pipeline gas for residential/industrial use: Dew point less than 5°C @ 1 atm. Use as CNG for motor vehicle: Dew point less than -10°C @ 1 atm. Use as LNG: Dew point less than -165°C @ 1 atm.
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AirScience - Model VPSA - Vacuum Pressure Swing Adsorption Process System
This process is primarily used for the dehumidification of biogas destined to the production of compressed natural gas (CNG) whether for transportation CNG or pipeline CNG. The process is very similar to the VSA process with the exception that the feed gas is under pressure and that the desorption sequence is designed to minimize the loss of methane as well as the energy usage (loss of ...
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Purifications - AirScience Siloxanes & VOC Removal System
For high siloxanes concentration Vacuum Swing Adsorption (VSA) will be recommended if no VOCs are present as VOCs which will be adsorbed by the media will not desorb by vacuum alone. When siloxanes and VOCs at medium to high concentrations are present Thermal Swing Asdorption will be recommended. The gas purification performance of activated carbon and TSA is similar however as activated carbon is not desorb it needs to be replaced as soon as it reaches close to saturation. The selection of one technology versus the other is based on the evaluation of capital cost versus operating cost as a function of siloxanes and VOCs concentration. If the concentrations of both siloxanes and VOCs is low, activated carbon is recommended as it has the lowest capital cost of the three processes that are generally used for this application, however if the concentration of one or both of the impurities is high, the activated carbon will be rapidly saturated, translating into a high operating cost.
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AirScience - Model TSA - Thermal Swing Adsorption Process System
This is the most effective siloxanes and VOCs removal system. It combines the removal efficiency of the activated carbon technology with the low operating cost of the VSA system. TSA can treat high loads of siloxanes and VOCs and its thermal desorption process assures that the adsorbent will have an extended usable ...
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Purifications - AirScience Oxygen Depletion System
DeOxo is principally used in the production of high purity hydrogen and is also used in the upgrading of landfill gas to pipeline quality gas where allowable oxygen content is generally very low.
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AirScience DeOxo - Oxygen Depletion Process Unit
AirScience experience with oxidation with precious metal catalyst goes back to the early years of the company with the supply of large catalytic reactors for the oxidation of hydrogen bromide (HBr) in the purified terephtalatic acid (PTA) industry. Such as the PTA plants in Montreal, Canada and Altamira, Mexico have used AirScience CaTox units for many ...
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AirScience Technologies - Air Pollution Control
Better Air is Our Busisness: AirScience Technologies specializes in the supply of state-of-the-art air emission and pollution control systems and gas separation for the primary and secondary industries more specifically Chemical, Oil & Gas, Power, PTA, Viscose and Waste Management industries. AirScience Technologies was formed in 1993 from the merger of the VOC control activities of a Canadian company and the Air Pollution Control division of a Pittsburgh PA corporation.
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AirScience - Gas Dryers System
Wet process gas enters a coalescing pre-filter, then passes through the inlet valve assembly and is directed towards chamber 1 where the clean gas passes upward through the desiccant. Gas drying is doneby adsorption. Dry gas from chamber 1 outlet passes through the valve assembly and through the after-filter to the dry gas receiver tank. While gas is being dried in chamber 1, the desiccant in chamber 2 which has been humidified in the previous cycle, is ...
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AirScience - Technologies
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AirScience - Steam Methane Reforming
Steam reforming of hydrocarbons is conventionally used for feedstock production for methanol synthesis, hydrogen production, ammonia synthesis and Fisher-Tropsch synthesis. Syn-Gas or Hydrogen can be produced using the Steam Methane Reforming ...
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AirScience - Biogas to Compressed Natural Gas
Converting biogas to transportation fuel as compressed natural gas (CNG) is happening today. It is generating far more revenue per cubic meter of biogas than steam or electricity generation. It is the ultimate in the valorization of ...
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AirScience TerraGas - Biogas to High Purity Hydrogen
The Terragas process jointly developed by Unitel Technologies and AirScience Technologies, converts biogas from municipal solid waste landfills, anaerobic digesters of waste water treatment plants and other sources to high purity ...
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AirScience - SMR Hydrogen Production
Hydrogen production through Steam Methanol Reforming (SMR). The methanol feedstock is mixed with water in specified ratio and pressurized. This mixture is passed through evaporator, metering pump and super heater. The hot gas mixture is then fed into a catalytic reactor. The reaction of methanol reforming and the shift reaction, takes place in the catalytic reactor of fixed beds simultaneously to form a mixture of H2 and CO2. Hydrogen is then extracted ...
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AirScience - Process Gas Desulfurization Unit
THE SULFOX REG PROCESS for 0,5 to 3.0 g/Nm³ Concentrations: The SulfoxREG is a gas desulfurization process that convert sulfur in raw gas to concentrated sulfuric acid. The SulfoxREG process is designed for treatment of gas having H2S and CS2 concentrations from 0,5 to 3.0 g/Nm³ (in total). Using a highly efficient regenerative catalytic oxidizer system the plant can be operated without additional fuel or electric energy even at low ...
