hydrogen generator Applications

Hydrogen is used to cool large, stationary generators because of its high heat capacity and low viscosity, and must be kept dry to maintain both of these properties. Ambient moisture is considered a contaminant, which will reduce the heat capacity and increase the viscosity of the cooling hydrogen.

By Moisture Control & Measurement Ltd based in Wetherby, UNITED KINGDOM.

Hydrogen Peroxide as a Replacement for Sodium Hypochlorite Hydrogen peroxide may be used in both mist scrubbers and packed tower scrubbers as a replacement for sodium hypochlorite (bleach). Like bleach, the process involves two concurrent mechanisms: 1) absorption of the odors (H2S) into the alkaline scrubbing solution; and 2) oxidation of the absorbed sulfide in solution. Step 1: H2S + NaOH → NaSH + H2O Step 2: 4H2O2 + H2S → H2SO4 + 4H2O Typical dose ratios are 5 parts H2O2 per part H2S or, when...

By USP Technologies based in Atlanta, GEORGIA (US) (USA).

Gravity main sewer systems include major trunk lines and the tributaries that feed them. Hydrogen sulfide (H2S) odor builds up in the collections system as the flows collect from upstream reaches and become larger, deeper and more septic (oxygen depleted) in the downstream reaches more near to the wastewater treatment plant. In general, most of the more significant hydrogen sulfide odor and corrosion control problems occur in the major trunk systems segments conveying flow to the plant. Therefore, selection...

By USP Technologies based in Atlanta, GEORGIA (US) (USA).

Hydrogen Peroxide typically controls odors and corrosion at treatment plant headworks by direct oxidation of hydrogen sulfide (H2S) within the wastewater. In the direct oxidation mode, H2O2 is applied to the wastewater 5-30 minutes prior to the point where the odors are being released, generally as the wastewater line enters the plant boundary. The efficiency of hydrogen peroxide treatment depends upon the available reaction time, the level of iron in the wastewater (reaction catalyst), wastewater pH and...

By USP Technologies based in Atlanta, GEORGIA (US) (USA).

Force main systems are typically high sulfide odor generators due to septicity conditions related to full pipe flow and a greater anaerobic slime layer (biofilm) thickness. Primary factors that influence sulfide loading generation in a force main include sewage temperature, BOD, retention time, pipe size and flow. Gaseous hydrogen sulfide (H2S) release at the force main discharge is usually the main concern related to odor and corrosion control needs; however, corrosion problems within the pipe can be of a...

By USP Technologies based in Atlanta, GEORGIA (US) (USA).

Klorigen™ systems safely generate the chlorine gas and/or high strength (up to 15%) sodium hypochlorite that is typically used to control biological fouling experienced in cooling water processes in the oil and gas industry. In addition to cooling water applications, Klorigen™ technology is well suited to other oil field applications which include hydrogen sulfide removal, enhanced oil recovery and frac water treatment. Onsite generation allows oil and gas applications to continue using their...

By Electrolytic Technologies Systems LLC based in North Miami Beach, FLORIDA (USA).

Various pollutants form in the cement manufacturing process, especially when alternative fuels and waste-derived fuels are used. Typically a cement kiln using these fuels is a required to monitor hydrogen chloride (HCl). Gasmet CEM II is EN 15267-3 approved for HCl measurement in 0 … 15 mg/Nm3 range.High process temperatures result in generation of more nitrogen oxides (NOx) than in typical municipal waste incineration.

By Gasmet Technologies Oy based in Helsinki, FINLAND.

PROBLEM: The industrial chimney's emissions of Volatile Organic Compounds (VOCs) are becoming issues of global importance and to have an accurate knowledge about how to test VOC turns into a strategic issue. VOC emissions are quantified and monitored according to standard EN 12619, using FID analyser which uses hydrogen and other reference gases in pressurized cylinder. Operators must then approach the sampling point, often placed several meters from the ground, climbing chimneys of industrial settlements with...

By Pollution Analytical Equipment based in Budrio (Bologna), ITALY.

Primary aluminium smelting generates large amounts of hydrogen fluoride gas (HF). Worker safety and ambient air quality concerns require that HF be monitored at several locations in smelters. Traditionally, a variety of chemical sampling methods have been used for HF monitoring in and around smelters. However, these methods are labour intensive and require ongoing maintenance and consumables. During the past decade, laser based HF analyzers have been replacing the traditional methods. Laser analyzers are compact,...

By Boreal Laser Inc. based in Edmonton, ALBERTA (CANADA).

Power Generation: Aqua Ammonia, Sodium Hypochlorite, Sodium Hydroxide (Caustic Soda) 20%-50%, Hydrogen Peroxide, Sodium Bisulfite, Sulfuric Acid, Citric Acid, Soda Ash, Sodium Bicarbonate.

By Carus Corporation based in Peru, ILLINOIS (USA).

Hydrometallurgical extraction of metals such as Nickel and Cobalt generate emissions of lethal gases such as Hydrogen Sulphide or Hydrogen Chloride. Macrotek has designed and supplied many systems to capture and treat these gases. In most cases the by-product is returned back to the process for reuse. Pyrometallurgical extraction of metals from sulphur containing ores generate large amounts of SO2 and particulate emissions. Macrotek has designed integrated systems to capture particulate and neutralizes SO2.

By Macrotek Inc. based in Markham, ONTARIO (CANADA).

Deionized water, also known as demineralised water, is water that has had its mineral ions removed, such as cations like sodium, potassium, calcium, magnesium, iron, and anions such as chloride, nitrate, sulfate, bicarbonate and even silica. Deionization is a chemical process that uses specially manufactured ion exchange resins which exchange hydrogen ion and hydroxide ion for dissolved minerals, which then recombine to form water. Because the majority of water impurities are dissolved salts, deionization...

By PuriTech Ltd based in Herentals, BELGIUM.

Brick kilns, as well as other plants such as ceramics manufacturers and fertiliser producers, are a major producer of hydrogen fluoride (HF) emissions. HF is highly reactive gas and seriously damaging to human health, so has strict emissions limits imposed by legislation. In addition to the effects to humans, emissions have been found to damage crops and fruit trees, as well as the general environment. The brick industry strives to reduce the amount of HF emissions and numerous projects have been carried out into...

By Protea Limited based in Middlewich, UNITED KINGDOM.

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....

By Bionomic Industries Inc. based in Mahwah, NEW JERSEY (USA).

The growing demand placed on the world’s water, in combination with more stringent water quality regulations, have placed unprecedented demands to provide safe, reliable and aesthetically pleasing drinking water. Air stripping is an effective way of removing volatile organic chemicals (VOCs) from contaminated water and is commonly used for this application. Air stripping systems mix air with a water supply with the goal to generate the largest possible air-water contact area so that VOCs and dissolved...

By Mazzei Injector Company, LLC based in Bakersfield, CALIFORNIA (USA).