19 products found
Pyro Green-Gas (formerly known as AirScience Technologies Inc.) Products
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RTO - Regenerative Thermal Oxidizers
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AirScience - Model RTO - Regenerative Thermal Oxidizers
AirScience supplied its first RTO in 1993 on a paper coating operation, in those days a typical RTO had three heat recovery canisters and was using poppet type valves, 25 years later, the technology has evolved, the norm is a two heat recovery canisters and the unit use a single four way valve for cycling from the lead canister to lag role. The destruction efficiency of organics, the pressure drop and the thermal recovery efficiency of these last ...
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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 Ferrachel - Model II - Iron Chelate Process System
The process is recommended for reduction of high hydrogen sulfide concentrations (>1000ppmv) to concentrations of less than 100ppmv. To achieve hydrogen sulfide concentrations in the less than 4ppmv, a second stage consisting of a dry scrubbing catalyst will be ...
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AirScience - Model DSC - Dry Scrubbing Catalyst Process System
The DSC process is based on the property of iron sponge to convert to iron pyrite in the presence of hydrogen sulfide. To enhance the reactivity of the active product as well as the activity of the whole pellets and not only the external surface, the active media is enhanced by certain additives defined as ...
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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 PSA - Pressure Swing Adsorption Process System
This process is used at high pressure for the drying of gas from the discharge of carbon dioxide removal system, to very low dew point prior to the liquefaction of natural gas. The duty of the PSA in this application is to remove all humidity from a gas saturated with humidity as it exits the amine scrubbing system (CO2 removal ...
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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 - Activated Carbon Process System
The system consists of a minimum of two towers, each having a bed of activated carbon. The gas travels through the carbon bed from bottom to top. Pressure drop through the bed and outlet concentrations are monitored to alert to a change in performance signaling the need to replace the carbon. To replace the carbon, the tower must be put off-stream, the full flow passing through the remaining tower(s) during the emptying and refilling operation. Once one ...
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AirScience - Model VSA - Vacuum Swing Adsorption Process System
From the outside a VSA unit is very similar to an activated carbon system (several towers in parallel with an inlet manifold and an outlet manifold, each with motorized isolation valves. The difference resides in the type of adsorbent media (activated carbon for one, molecular sieve for the other) and the fact that a VSA system has a vacuum system connection at each ...
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AirScience Biogas Upgrading Technologies
AirScience Technologies offers several processes to separate and remove carbon dioxide (CO2) from biogas and natural gas. To produce biogas for use in an internal combustion engine and power generation, operators usually do not remove carbon dioxide from the biogas, however for injection into the city gas network, the biogas needs to meet stringent specifications and carbon dioxide has to be removed. In the case where the gas will be liquefied, carbon dioxide has to be removed to ppm level. The most commonly used for biogas applications are vacuum pressure swing adsorption (VPSA) or multistage membrane system. In cases where ppm levels of carbon dioxide are required, amine scrubbing process is used.
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AirScience - Amine Scrubbing Process System
Amine scrubbing or amine gas treating, also known as gas sweetening or acid gas removal, refers to a group of processes that use aqueous solutions of various alkylamines to remove hydrogen sulfide (H2S) and carbon dioxide (CO2) from gases. AirScience amine scrubbing process includes absorber and regenerator towers as well as accessory equipment such as pumps, heat exchangers, reboiler, ...
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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 - VOC Biofilters
In biofiltration, VOC laden air is humidified, then passed through a proprietary AirScience filter bed composed of a variety of materials such as: organic matter, bulking agent, acid buffer, holding agent and nutrients. There, naturally occurring microorganisms break down the offending compounds, releasing clean air to the atmosphere along with harmless and odor free carbon dioxide and ...
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AirScience - VOC Trickling Biofilters
In AirScience's Trickling Biofilters water containing nutrients and neutralizing components is fed in a continuous manner to the top of a bed made of structured packing, covered by an activated biofilm. The polluted air to be treated circulates through the packing in a co-current or counter-current fashion. Residence times are generally shorter than for biofilter for comparable performance. Trickling Biofilters can treat higher total loads of pollutant ...
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AirScience - VOC Bioscrubbers
In AirScience's Bioscrubbers, the polluting compounds are first absorbed or dissolved in a water scrubber. The resulting liquid solution is then transferred to a bioreactor where microorganisms degrade the dissolved organic compounds in an anaerobic condition. The resulting bio-gas consists primarily of methane, which can be used as process fuel. Capture efficiencies are in excess of 95%. Anaerobic bioscrubbers have the advantage of generating a fraction ...
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AirScience - Hydrogen Generators
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 - Nitrogen Generators
Our Nitrogen Generators operate on Pressure Swing Adsorption, known as PSA Technology. PSA Technology is based on the selective adsorption phenomena of gas molecules under pressure on the surface of highly porous and efficient adsorbent, In the case of Nitrogen Generation the Adsorbent is Carbon-based Molecular Sieve(CMS). When compressed air is used for nitrogen generation, the adsorption towers are filled with CMS. The molecules of oxygen, moisture and ...
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AirScience - Oxygen Generators
Our Oxygen Generators operate on Pressure Swing Adsorption, known as PSA Technology. PSA Technology is based on the selective adsorption phenomena of gas molecules under pressure on the surface of highly porous and efficient adsorbent, In the case of Oxygen Generation the Adsorbent is Carbon-based Molecular Sieve(CMS). When compressed air is used for nitrogen generation, the adsorption towers are filled with CMS. The molecules of oxygen, moisture and ...
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AirScience - Non-Thermal Plasma Multi-Pollutant Control Process System
The Non-Thermal Plasma Multi-Pollutant Control process developed by AirScience, Saskpower and CANMET has demonstrated at the laboratory that SOx, NOx and mercury can be removed from coal-fired flue gases at a fraction of the capital and operating cost of conventional control technologies. The Radical Shower approached used in this proprietary process has shown advantages over the Electron Beam Non Thermal Plasma. The consortium is presently experimenting ...
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AirScience - Catalytic Oxidizers
AirScience catalytic oxidizers are specifically designed for process applications where the raw-gas contains sulfur or halogens, the oxidation of which create corrosive and poisoning conditions which are not suitable for common ...
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AirScience - Modular Thermal Oxidizers
Our Nitrogen Generators operate on Pressure Swing Adsorption, known as PSA Technology. PSA Technology is based on the selective adsorption phenomena of gas molecules under pressure on the surface of highly porous and efficient adsorbent, In the case of Nitrogen Generation the Adsorbent is Carbon-based Molecular Sieve(CMS). When compressed air is used for nitrogen generation, the adsorption towers are filled with CMS. The molecules of oxygen, moisture and ...
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AirScience - Wet Gas Scrubbers System
AirScience designs and builds large custom built wet gas scrubbers for the process and chemical industry to treat gas containing sulfur or halogens. Our primary line of wet scrubbers is of the packed tower design. These low pressure high conversion rate scrubbers are best suited for the treatment of acid gases. We have the capability, experience and track record for the supply of large scrubbers operating in very corrosive environments. AirScience has ...
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AirScience - Wet Electrostatic Precipitators System
The Wet Electrostatic precipitator separates liquid particles and aerosols from the raw gas stream by charging the particles in an electric field and depositing them on the inner surface of the collector tubes. The collected droplets coalesce into larger drops and drain by gravity to a liquid collection tank located at the base of the unit. Main features separation of liquid and solid particles for particle sizes below 0,5 micron suitable for gas ...
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AirScience - Technologies
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AirScience - Flue Gas Desulfurization
The Non-Thermal Plasma Multi-Pollutant Control process developed by AirScience, Saskpower and CANMET has demonstrated at the laboratory that SOx, NOx and mercury can be removed from coal-fired flue gases at a fraction of the capital and operating cost of conventional control technologies. The Radical Shower approached used in this proprietary process has shown advantages over the Electron Beam Non Thermal Plasma. The consortium is presently experimenting ...