H2S oxidizer Articles
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H2S Oxidation System for Offshore Platforms
In May of 1994, Chevron USA Production Company selected the LO-CAT® II Hydrogen Sulfide Oxidation Process as part of the natural gas sweetening train for the Mobile Block 864 “B” Production Platform in the Gulf of Mexico. The entire sweetening train, consisting of both an amine unit and the LO-CAT II unit, is located on the platform. The LO-CAT II unit absorbs H2S from the amine acid stream ...
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H2S Oxidation System for Refinery Desulfurization
The European Union has recently promulgated new directives reducing the amount of residual sulfur in diesel and gasoline. These directives are requiring European refineries to revise both their fuel production processes and their downstream desulfurization strategies. One affected refinery is Irish Refining plc near Whitegate Middleton, Country Cork, Ireland which recently added a new atmospheric ...
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H2S Oxidation System for Refinery Desulfurization
The European Union has recently promulgated new directives reducing the amount of residual sulfur in diesel and gasoline. These directives are requiring European refineries to revise both their fuel production processes and their downstream desulfurization strategies. One affected refinery is Irish Refining plc near Whitegate Middleton, Country Cork, Ireland which recently added a new atmospheric ...
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H2S Oxidation and Sulfur Recovery
Lubrizol’s facility in LeHarve, France produces a lube oil additive via a batch reaction that uses elemental sulfur as a reactant and produces H2S as a byproduct. Lubrizol selected Gas Technology Products LO-CAT® II Hydrogen Sulfide Oxidation Process to sweeten H2S emissions and recover sulfur. The LO-CAT II system was chosen for its ability to handle the process variation in H2S ...
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H2S Oxidation System for Water Treatment Facilities
A new water treatment facility in the town of Jupiter, Florida, was causing a serious odor problem. H2S removed from the purified water was being released into the atmosphere. Complaints about the odor came from the residences and businesses downwind of the treatment ...
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H2S Oxidation System for Water Treatment Facilities
A new water treatment facility in the town of Jupiter, Florida, was causing a serious odor problem. H2S removed from the purified water was being released into the atmosphere. Complaints about the odor came from the residences and businesses downwind of the treatment plant. A turnkey LO-CAT® Hydrogen Sulfide Oxidation System designed to process 30,000 CFM of air containing 250 ppm of H2S ...
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Hydrogenotrophic denitrification of drinking water using a hollow fibre membrane bioreactor
The objective of this research was to investigate the performance of a hollow fibre membrane bioreactor (HFMB) for hydrogenotrophic denitrification of contaminated drinking water. In the HFMB, H2 flows through the lumen of the hydrophobic hollow fibres and diffuses to an attached H2 oxidizing biofilm. Nitrate in the contaminated water serves as an electron acceptor. A hydrogenotrophic ...
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Microsensor determination of multiple microbial processes in an oxygen-based membrane aerated biofilm
Microsensor techniques were used to investigate in situ the simultaneous occurrence of sulfate reduction and nitrogen removal in a membrane aerated biofilm reactor. H2S, O2, pH, ORP, NH4+ and NO3− microsensors were fabricated and used to measure the profiles inside the membrane aerated biofilm. Production and consumption rates of H2S, O2, NH4+ and NO3− were estimated ...
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Exchange bias in ferromagnetic nanoparticles embedded in an antiferromagnetic matrix
The fabrication process and magnetic properties of three types of system consisting of ferromagnetic (FM) particles embedded in an antiferromagnetic (AFM) matrix are discussed. The preparation techniques are ball milling, H2 partial reduction of oxides and nanoparticle gas condensation. The magnetic properties of the FM/AFM composites are shown to depend strongly on the morphology of the system ...
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Sulfur Recovery/Odor Control
The LO-CAT® Hydrogen Sulfide Oxidation System provides economical H2S removal to solve odor problems quickly and effectively. LO-CAT achieves H2S removal efficiencies exceeding 98%. The system also eliminates costly once-through chemicals, offers unique mobile bed contacting material, and reduces operating costs. Turnkey systems from specification to installation can be developed to ...
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Hydrogenotrophic denitrification of drinking water using a hollow fibre membrane bioreactor
ABSTRACTThe objective of this research was to investigate the performance of a hollow fibre membrane bioreactor (HFMB) for hydrogenotrophic denitrification of contaminated drinking water. In the HFMB, H2 flows through the lumen of the hydrophobic hollow fibres and diffuses to an attached H2 oxidizing biofilm. Nitrate in the contaminated water serves as an electron acceptor. A hydrogenotrophic ...
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Corrosion, the invisible enemy of WWTPs
Corrosion is the natural process in which metals degrade. This process is influenced by external factors such as humidity, temperature and corrosive gases, mainly active sulfur compounds, sulfide oxides and nitrogen oxides (H2S, SO2, SO3, NOx). In pumping stations and sewage treatment plants these factors are present, even in very low concentrations (parts per billion), and are the cause of ...
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Oxidation System for Wellhead Casing Gas
Mobil Exploration’s North Midway Facility in Kern County, California, needed a new desulfurization unit for a wellhead producing 0.5 MMCFD of casing gas containing 3% H2S. The unit chosen would produce effluent gas with less than 150 ppm H2S, reduce Mobil’s costs for chemicals compared to the existing desulfurization system, and be delivered within eleven weeks. A new LO-CAT® II ...
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Russia: ENVEA equips air quality monitoring stations as part of Clean Air program - Case Study
Russia launched in 2018 a national « Ecology » plan to make dramatic changes in the way humans affect the environment. The objective: switch to a sustainable natural resources management model, and improve living standards for 20 millions of Russian citizens who currently live in adverse environmental conditions. The « Clean Air 2020-2024 » project is part of this plan. ...
By ENVEA
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H2S Monitoring
H2S is formed whenever elemental sulfur or sulfur-containing compounds come into contact with organic materials at high temperatures. Continuous or high-level exposure of the H2S can quickly deaden a person’s sense of smell, making the odour of H2S an unreliable indicator of its presence. Hence, other means such as hydrogen sulfide monitoring is a viable solution to provide adequate warning ...
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Odor Control H 2 S / Sewer Gas Wet Scrubbing Explained
H2S / Sewer Gas / Rotten Egg Smell Control Hydrogen Sulfide, chemical formula H2S. also commonly referred to as 'sewer gas' is frequently a nuisance problem at waste water treatment facilities - and a source of complaints from neighbors of such facilities. Additionally, H2S not only stinks, at high concentrations it incapacitates, blinds and eventually will kill if allowed to concentrate ...
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Bi-On Carb OX: Odor treatment in WWTPs. Case study SIMTEJO (Portugal) - Case Study
Avoiding problems associated with foul odors in and around collectors and waste water treatment plants is today one of the major focus points to avoid possible issues related to worker safety, as well as minimizing negative social discomforts caused by the foul odors. The main sources that generate foul odors in WWTPs occur at stages of anaerobiosis, where the lack of oxygen favours the ...
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Treament of Hydrogen Sulfide (H2s)
This gas is often found in groundwater that contains iron and manganese. It is easily identified by its "rotten egg" odor. In addition to causing serious taste and odor problems, sulfide also promotes the growth of sulfur bacteria. Hydrogen sulfide can cause corrosion problems with iron and concrete pipes and reservoirs. Sulfides are formed by the anaerobic reduction of sulfates and organic ...
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Removal of hydrogen sulfide by zinc oxide nanoparticles in drilling fluid
Hydrogen sulfide is a very dangerous, toxic and corrosive gas. It can diffuse into drilling fluid from formations during drilling of gas and oil wells. Hydrogen sulfide should be removed from this fluid to reduce the environmental pollution, protect the health of drilling workers and prevent corrosion of pipelines and equipments. In this research nano zinc oxide with 14-25 nm particle size and ...
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Safety and Corrosion Protection in Refineries
The environment in a refinery is highly corrosive, which makes it necessary to implement control systems not only to protect people but also the equipment that controls the processes to ensure their reliability. Bioconservacion has equipment specially designed for the safety of people, to protect against corrosion in control rooms and cabinet pressurization equipment. Some CEPSA refineries in ...
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