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*  AMMONIA SCR CATALYST AND METHOD OF USING THE CATALYST - Patent application
The catalyst selectively reduces nitrogen oxides to nitrogen with ammonia at low temperatures. The catalyst has high ... 0076]The catalysts were tested for selective catalytic reduction of NOx with an inlet gas composition of 350 ppm NO, 350 ppm NH ... 0073]The catalysts with the compositions shown in Table 1 were prepared and tested for ammonia SCR reduction of nitrogen oxides ... 0001]The invention relates to a catalyst and a method for selective catalytic reduction of nitrogen oxides with ammonia at low ...
  http://www.patentsencyclopedia.com/app/20090297419
*  Products Catalysts Product details|Sakai Chemical Industry
... catalysts, organic chemicals, magnetic iron oxide, cosmetics, pharmaceuticals, and thiochemicals ... De-NOx catalysts/De-DXNs catalysts. The de-NOx catalyst reduces and eliminates nitrogen oxide generated through power plants ... Our "development of the selective catalytic reduction catalyst by ammonia" was awarded the Technology Prize by the Catalysis ... SCI is a manufacturer of titanium oxide, which is a primary raw material for these catalysts. We are the only manufacturer that ...
  http://www.sakai-chem.co.jp/en/products/product_05_01.html
*  Patents filed at May 30 2017 | Multi-purpose food grinding machine | Patents.com
The present invention provides for catalysts for selective catalytic reduction of nitrogen oxides. The catalysts comprise metal ... Emissions treatment system with ammonia-generating and SCR catalysts. Provided are emissions treatment systems for an exhaust ... A CO.sub.2 recovery unit includes an absorber that reduces CO.sub.2 in flue gas (101) discharged from a combustion facility (50 ... Catalyst for reducing nitrogen oxides. The present invention relates to a nitrogen oxide storage catalyst composed of at least ...
  http://patents.com/isd-20170530-p75.html
*  John J. Mooney - Wikipedia
The three-way catalytic converter reduces nitrogen oxides to nitrogen and oxygen, oxidizes carbon monoxide to carbon dioxide ... carbon monoxide and nitrogen oxide emissions. The converters available at the time were oxidation catalysts, which could handle ... Among his first tasks there were purification of hydrogen, purification and catalysis of ammonia into hydrogen and nitrogen and ... The three-way catalyst developed by them allowed all three exhaust pollutants (hydrocarbon, carbon monoxide and nitrogen oxides ...
  https://en.wikipedia.org/wiki/John_J._Mooney
*  US6691509B2 - Process for regenerating the catalytic activity of a catalyst that is located in the exhaust gas line of a diesel...
... the catalytic activity of the catalyst is at least partly regenerated. ... The present invention provides a process for regenerating the catalytic activity of catalysts that have oxidizing functions. A ... using ammonia as a reducing agent. The reduction of nitrogen oxides takes place on SCR catalysts. The ammonia required is ... which reduces the catalytic activity of the coating. Thus, these tests show that reduction in catalytic activity of the ...
  https://patents.google.com/patent/US6691509B2/en
*  Catalysts | Free Full-Text | Oxidation Catalysts for Elemental Mercury in Flue Gases-A Review | HTML
Selective catalytic reduction (SCR), noble metal and transition metal oxide based catalysts have been investigated at both the ... A review article published in 2006 covers the progress in the elemental mercury (Hgel) catalytic oxidation area. This paper ... For this purpose heterogeneous catalysts have recently attracted a great deal of interest. ... SCR catalysts are employed for the reduction of nitrogen oxides (NOx) in the presence of ammonia (NH3) at temperatures higher ...
  http://www.mdpi.com/2073-4344/2/1/139/htm
*  Emissions of air pollutants from transport - European Environment Agency
Acidification of soils and waters is caused by emissions of nitrogen oxides (NOx), sulphur oxides (SOx) and ammonia (NH3) into ... The NH3 emissions from road transport, have been rising as a result of the increasing use of three-way catalytic converters in ... emissions are projected to fall in the future as the second generation of catalysts (which emit lower levels of NH3 than the ... the vehicle fleet (this is due to an unwanted reaction involving hydrogen which reduces NO to NH3). However, ...
  https://www.eea.europa.eu/data-and-maps/indicators/transport-emissions-of-air-pollutants-8/transport-emissions-of-air-pollutants-7
*  Patente US4843051 - Fluid catalytic cracking regeneration with reduction of nitrogen emissions - Google Patentes
This atmosphere reduces NOx species to molecular nitrogen, ammonia and other nitrogenous compounds. Secondary air is introduced ... percent with the amorphous oxide and clay catalysts operating in a non-CO burning regenerator. According to present standards a ... formation of nitrogen oxides is disfavored and if any nitrogen oxides are formed, they are reduced to nitrogen or other reduced ... 1. A method of reducing the emissions of nitrogen oxides from the regeneration of a fluid catalytic cracking catalyst, which ...
  http://www.google.es/patents/US4843051
*  Search - SAE International
... nitrogen oxide) reductions. With combination of these three measures, NOx is drastically reduced to the levels lower than 0.7 g ... the treatment could only partially recover the original catalytic performance for the deNOx reaction. The unrecovered catalytic ... HC poisoning and deactivation of pre-oxidation catalysts. Hydrocarbons that accumulated on the catalysts inhibited the ... The experimental results show that the ethanol blending lowers the cloud point of the blended fuel and significantly reduces ...
  http://www.sae.org/search/?sort=relevance&sort-dir=desc&display=list&content-type=%28%22PAPER%22%29&authors=%28%22Yuichi+Goto%22%29
*  Catalysis in industry
Besides aluminium oxide and silicon dioxide, other oxides are important catalysts. For example, in the Contact Process used to ... Figure 2 A mechanism for the catalytic synthesis of ammonia.. Figure 3 shows how the activation energy barriers are much lower ... The exhaust gases also contain nitrogen(II) oxide (nitric oxide, NO), and this is removed by reactions catalysed principally by ... This reduces the activity of the catalyst and steps must be taken to avoid this. One way is to add another substance, known as ...
  http://essentialchemicalindustry.org/processes/catalysis-in-industry.html
*  Molybdenum - Wikipedia
The molybdenum-based mixed oxides are versatile catalysts in the chemical industry. Some examples are the catalysts for the ... nitrogen is reduced to ammonia and free hydrogen gas. This is an energy-using process, requiring the splitting (hydrolysis) of ... Dietary tungsten reduces the concentration of molybdenum in tissues. Low soil concentration of molybdenum in a geographical ... The structure of the catalytic center of the enzyme is similar to that in iron-sulfur proteins: it incorporates a Fe4S3 and ...
  https://en.wikipedia.org/wiki/Molybdenum
*  US3442332A - Combination methods involving the making of gaseous carbon dioxide and its use in crude oil recovery -...
Nitrogen is withdrawn by line 245 and sent to ammonia production unit 250. The nitrogen from line 245 and the hydrogen from ... the gases produced are odorous because of the oxides of nitrogen and sulphur; where air pollution is a problem, as in the Los ... Thus, carbon dioxide dissolves in the oil and reduces its viscosity. The solution of reduced viscosity is withdrawn from the ... air by reaction of hydrocarbons with gasifying agents using catalysts ...
  https://patents.google.com/patent/US3442332
*  Control Device Technology A quick summary of various control measures and important monitoring characteristics Peter Westlin,...
Ammonia or urea is injected into exhaust streams with plenty of oxygen to reduce nitrogen oxide to nitrogen and oxygen  ... 42 NO x Control Techniques - Non Selective Catalytic Reduction Performance indicators  Outlet nitrogen oxide concentration ( ... General description Water or steam injected in combustion zone reduces temperature and nitrogen oxide formation (applied to gas ... and nitrogen (usually applied to engines)  Catalysts made from noble metals  Efficiency ranges from 80 to 90 percent  ...
  http://slideplayer.com/slide/3920499/
*  Pollution Controls and Available Monitoring Techniques A quick summary of various control measures and important monitoring...
46 NO x Control Techniques - Non Selective Catalytic Reduction Compliance monitoring  Outlet nitrogen oxide concentration ( ... Ammonia or urea is injected into exhaust streams with plenty of oxygen to reduce NO x to N 2 and water  Catalysts made from ... General description Water or steam injected in combustion zone reduces temperature and nitrogen oxide formation (applied to gas ... 43 NO x Control Techniques - Selective Catalytic Reduction Compliance monitoring  Outlet nitrogen oxide concentration (CEMS ...
  http://slideplayer.com/slide/3920496/
*  Catalytic converter - Wikipedia
A three-way catalytic converter has three simultaneous tasks: Reduction of nitrogen oxides to nitrogen (N2) 2 CO + 2 NO → 2 CO2 ... most manufacturers selected base-metal SCR systems that use a reagent such as ammonia to reduce the NOx into nitrogen. Ammonia ... This technique reduces the engine runtime needed for the catalytic converter to reach its "light-off" or operating temperature ... platinum and aluminium oxide, all of which serve as catalysts to oxidize the hydrocarbons and carbon monoxide with oxygen to ...
  https://en.wikipedia.org/wiki/Catalytic_converter
*  AI interview with Claus Bruestle, president of North American operations at Emitec Inc - Automotive Industries
... tighter nitrogen oxide limits. SCRi® systems (= SCR with integrated particulate reduction) include a compact PM soot filter (PM ... This is because the company's pre-turbocharger catalysts use the turbulent Emitec catalysts. Highly efficient exhaust gas ... hydrolysis to create Ammonia and simultaneously particulate reduction. The optimized Ammonia preparation and mixing can be used ... These advantages can be used to futher minimize the needed catalytic converter volume which results in lower weight and cost. ...
  http://www.ai-online.com/Adv/Previous/show_issue.php?id=3374
*  Scientific.Net: Materials Science
Effect of Increased Oxide Hole Trap Density due to Nitrogen Incorporation at the SiO2/SiC Interface on F-N Current Degradation ... The catalysts were characterized by XRD, TG-MS, NH3-TPD, SEM method. The catalytic performance for N2O decomposition was ... In particular, a conventional electrical characterization of MOS capacitors showed that nitrous oxide POA reduces the presence ... ammonia (NH3), and greenhouse gases, and these can cause secondary environmental pollution. In this study, continuous ...
  https://www.scientific.net/keyword/N2O
*  US8926913B2 - Particulate filter with low soot loaded coating - Google Patents
Particulate matter is trapped in the walls of the filter and the catalytic material removes gases, such as nitrogen oxides (NOx ... A ceramic particulate filter having a porous catalytic material deposited on walls within the filter. ... Such catalytic materials include, but are not limited to, oxidation catalysts (DOCs), lean NOx traps, selective catalytic ... During operation, the LNT catalyst will create ammonia (NH3), which is then used as a reducing agent for a selective catalytic ...
  https://patents.google.com/patent/US8926913B2/en
*  Patent US6403854 - Two-stage quench tower for use with oxygenate conversion process - Google Patents
Numerous patents describe this process for various types of these catalysts: U.S. Pat. No. 3,928,483; U.S. Pat. No. 4,025,575; ... In the present invention, the light olefins are produced by the catalytic conversion of an oxygenate, which also produces about ... The neutralizing stream is selected from the group consisting of caustic, ammonia, and amines. The cooled first stage bottoms ... Additionally, during regeneration there can be oxidation of sulfur and in some instances nitrogen compounds along with the ...
  http://www.google.com/patents/US6403854?dq=inassignee:doubleclick
*  Voltage control system for heating a selective catalyst reduction device - GM GLOBAL TECHNOLOGY OPERATIONS LLC
The ammonia then reduces the NOx to nitrogen in the presence of the SCR catalyst. A mixer or turbulator 64 may also be disposed ... and oxides of nitrogen ("NOx") as well as condensed phase materials (liquids and solids) that constitute particulate matter (" ... which is referred to as catalytic combustion. Specifically, catalytic combustion occurs when the hydrocarbons in the exhaust ... or other suitable oxidizing catalysts, or combination thereof, and may be referred to as the catalyst of the EHC device 16. The ...
  http://www.freepatentsonline.com/9388722.html
*  Patent US20070181083 - System and method for producing, dispensing, using and monitoring a hydrogen ... - Google Patents
Apparatus and method for decreasing nitrogen oxide emissions from internal combustion power sources. ... This device reduces NOx emissions and uses its oxygen, along with oxygen left over from incomplete combustion in the engine, to ... Internal combustion engine with SCR and integrated ammonia production. US6745613 *. Aug 13, 2001. Jun 8, 2004. Spx Corporation ... For heavy-duty applications, stoichiometric turbocharged engines using EGR and three-way catalysts provide the lowest possible ...
  http://www.google.com/patents/US20070181083?dq=6,263,507
*  Geochemical assessment of the bioavailability of platinum group metals for phytomining - UBC Library Open Collections
... and oxides of nitrogen (NOx), to less harmful substances (Dietz, 2014). 1.2 Statement of the problem In the soil, a large ... and could help develop a new range of naturally-derived catalysts. Catalysts developed within this project can be used in a ... Mixed ammonia-chloride species may also contribute to the transport of Pt and Pd in highly saline solutions. Cyanide forms very ... This process reduces the number of production steps compared to traditional catalyst production methods. Phytomining, therefore ...
  https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/items/1.0300268
*  Patent US3245900 - Hydrocarbon conversion process - Google Patents
There is no nitrogen limit on the hydrocracking zone bottoms which are passed to the catalytic cracking zone, although under ... and favorable results may be obtained with catalysts containing composites of two or more of the oxides of molybdenum, cobalt, ... This reduces the production of light gases in the catalytic cracker, when the hydrocracker lbottoms stream is combined with the ... The first stage effluent was scrubbed with freshly distilled water to remove hydrogen sulfide and ammonia and then was fed to a ...
  http://www.google.com/patents/US3245900
*  Purification of unsaturated dinitriles by contacting with chi-alumina prior to hydrogenation - Patent # 4235808 -...
This process additionally reduces the level of olefin unsaturation in the hydrogenation product below the level of olefin ... The lifetime and activity of catalysts for the hydrogenation of unsaturated dinitriles are increased by contacting the ... Examples of suitable catalysts include ruthenium or palladium on alumina, each having a catalytic metal content of about 5 ... but generally ammonia is employed in the hydrogenation of unsaturated dinitriles with ruthenium catalysts as a meansof ...
  http://www.patentgenius.com/patent/4235808.html
*  Hydrochlorofluorocarbons | Encyclopedia.com
For instance, catalysts are used in the industrial production of ammonia, nitric acid (produced from ammonia), sulfuric acid, ... Nitric oxide is reduced to molecular oxygen and nitrogen; at the same time, the hydrocarbons in petroleum, along with carbon ... some material is so strongly adsorbed that it effectively reduces the number of catalytic sites available to the reactant, ... Catalysts Science of Everyday Things COPYRIGHT 2002 The Gale Group Inc.. CATALYSTS. CONCEPT. In most of the processes studied ...
  https://www.encyclopedia.com/history/historians-and-chronicles/historians-miscellaneous-biographies/hydrochlorofluorocarbons