Semiconductor manufacturing facilities employ a number of hazardous gases in their production processes. Whenever these gases are stored, distributed or used in manufacturing processes, there exists the potential for a hazardous condition. The primary hazards associated with these gases include fire, explosion, and contamination resulting in product loss or unscheduled preventative maintenance. These gases must be continuously monitored to ensure the health and safety of employees, to protect property, as well as...
When it comes to odor management, simply cleaning the tank isn’t enough to remove the odors. Prior to cleaning, storage tanks are vented to the atmosphere in order to reduce the internal gas content to a level below its lower explosion limit (LEL). This permits safe worker access. During venting, odors escape into the atmosphere creating a nuisance to nearby residents, businesses, and employees. Furthermore, storage tank cleaning results in production downtime that reduces plant profitability.
Natural gas is a hydrocarbon gas mixture consisting primarily of methane(CH4) , but commonly includes varying amounts of other higher alkanes and usually small amounts of impurities like water vapor (H2O), hydrogen sulfide(H2S), carbon dioxide(CO2), and nitrogen (N2 ) and others. Natural gas must be processed from the impurities before can be used as a fuel. Five stages are often required to convert raw natural gas into fuel gas pipelined to the end user markets: extraction and gathering, gas purification,...
The oil and gas industry faces water and wastewater treatment specific challenges. IDRAFLOT flotation units represent an effective solution for oil and grease separation. Explosion proof versions to be evaluated.
Sewerin manufacture a wide range of gas warning detectors suitable for many different gas monitoring, detection and warning applications.Sewerin gas detectors are used to monitor and warn of the dangers from explosive, toxic and asphyxiating gases.
Liquefied natural gas owners require improved routine monitoring of facilities for safety, economic and regulatory reasons. Leaking LNG can cause explosions leading to loss of life and property. Loss of product through undetected leaks dramatically reduces a pipeline operator’s profitability. Traditional gas detectors are slow to reach and require a labour intensive process to keep maintained. IR detectors have been used but with limited success because of cross interference from other atmospheric gases.
Our range of safety analysers can offer early detection of fire / explosive conditions. From CO monitors for pulverising coal mills through to UV flame and smoke detectors installed on oil rigs and the cross-channel passenger shuttles, operated by Eurotunnel.
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...
The chemical industry is completely dependent on reliable supplies of process gas. But each process is different and requires specialized machines. The solution: the efficient compressors and blowers from AERZEN – proven in numerous operating environments, suited for almost all media, unrivalled in their reliability, and adaptable to individual client specifications. Can the solution really be this easy? It can! The EU directives for explosion protection play an important role, among others, in the chemical...
Fast, accurate and reliable measurement of CH4. The extraction of coal releases methane gas, which can mix with the air in a mine to form a hazard due to its flammability. Ventilation with fresh air from the surface is used to dilute the methane and reduce the risk of explosion. Monitoring of the methane content of the stale air exiting the mine allows the amount of ventilation to be controlled. Although our sensors are not ATEX approved for use in potentially explosive atmospheres they are suitable for monitoring...
Boiler combustion control, O2 and CO
DeNOx system, NH3 and NO
Electrostatic precipitators (ESP), CO monitoring for explosion prevention
Stack gas emissions, NH3, H2O, NO
Coal silos, CO monitoring for explosion prevention and detection of smouldering fires (only in coal fired plants)
Stack gas emission
Coal silo, explosion prevention
Many industries are involved in coating products with solvent-borne materials and then employing ovens or dryers to remove the solvents from the finished product. The key hazard is an explosion from the build up of solvent vapors in the oven or dryer atmosphere. This buildup could occur by a malfunction in the production process such as: a sudden or improper amount of coating, a change in ventilation controls or excessive speed. In any of these cases, the concentration of flammable vapor has an opportunity to...
State-of-the-art systems enabling easy monitoring of CO2 and CH4 gases. Capped Landfill Sites produce a range of gases, mostly methane and carbon dioxide. Legislation requires that these gases are safely removed from beneath the cap to avoid a physical explosion due to the build-up of pressure beneath the cap. Safe disposal usually entails burning such as flare stacks, internal combustion engines or by processing to produce Methane gas fuel. For large sites with access to power distribution infrastructure...
Natural gas pipeline owners require improved routine monitoring of pipelines for safety, economic and regulatory reasons. Leaking natural gas can cause explosions leading to loss of life and property. Loss of product through undetected leaks dramatically reduces a pipeline operator’s profitability.
Flammable non-condensible gases (NCG’s) are byproducts of the wood pulping process. Health and pollution regulations prohibit the release of these gases into the atmosphere. They are usually eliminated by passing them through an incinerator or by using them as fuel in the burner of a boiler or kiln. The incinerator, boiler or kiln however can be damaged by NCG’s which have built up explosive levels. Pulp mills require the use of our PrevEx Flammability Analyzers to monitor the NCG stream and detect...
Blast furnace offgas, combustion control, CO, CO2, O2
Converter (Basic oxygen furnace BOF)
CO gas recovery
O2 measurement for explosion prevention
Electric arc furnace offgas, combustion control, CO, O2, H2O
Reheating furnaces, O2
CO analysis in oven offgas
O2 analysis for explosion prevention in raw coke gas or after tar precipitator
NH3 measurement after scrubber
H2S measurement after scrubber
Preheater exit, CO monitoring
Electrostatic precipitators (ESP) after pre-heaters, CO monitoring for explosion prevention
Coal silo, CO monitoring
Exit of coal mill, dust filter, CO monitoring
Stack gas emissions, HCl and HF
Stack gas emissions
Coal silo, explosion prevention
Regulations prohibit facilities from discharging flammable or explosive wastes from their processes into the wastewater collection system. These wastes are not only a fire and explosion hazard but they can also effect the efficient and effective operation of the treatment facility. PrevEx Flammability analyzers are used to continuously monitor the waste stream for flammable gases and vapors. Their unique design and operating technology make them the ideal analyzers for the harsh conditions found in the sewer...
Application: In March 1986 an explosion destroyed a bungalow adjacent to a landfill site in Loscoe, Derbyshire. Subsequent measurements showed that 150-200 cubic meters of gas per hour were being generated by landfill waste. This event triggered a change in the way the waste industry considered and regulated gas generated at landfill sites; resulting in the landfill regulations of 2002, and in particular LFTGN03: the Guidance on the Management of landfill Gas.