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Topic: Catalytic


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In the News (Sat 17 Aug 19)

  
  Ford Catalytic Converters: Improve Auto Performance & Protect the Environment w/ Ford Catalytic Converter   (Site not responding. Last check: 2007-10-18)
Catalytic converters are being installed in the emission systems because a vehicle as it operates emits gases with harmful elements such as hydrocarbon, carbon monoxide and nitrogen oxide.
Most commonly, catalytic converters are found in the exhaust line between the exhaust manifold and the muffler and use chemicals that act as catalyst.
Catalytic converters, as small as it may be, helps so much in the vehicle’s performance and in nature.
www.innerauto.com /Ford_Parts/Ford_Catalytic_Converters   (420 words)

  
  Catalytic converter - Wikipedia, the free encyclopedia
Most commonly used in an automobile's exhaust system, catalytic converters are now commonly used on generator sets, forklifts, mining equipment, trucks, buses, trains, and other machines that have engines to provide an environment for a chemical reaction where unburned hydrocarbons are more completely combusted.
Catalytic converters become ineffective in the presence of lead due to catalyst poisoning, and the introduction of catalytic converters triggered the end of leaded gasoline.
Catalytic converters are used on spark ignition (gasoline; liquified petroleum gas (LPG); flexible fuel vehicles burning varying blends of E85 and gasoline; compressed natural gas (CNG)) rich burn engines; and compression ignition (diesel, lean CNG) lean burn engines.
en.wikipedia.org /wiki/Catalytic_converter   (1326 words)

  
 Catalyst - Wikipedia, the free encyclopedia
A catalyst (Greek: καταλύτης, catalytēs) is a substance that accelerates the rate (speed) of a chemical reaction without itself being transformed or consumed by the reaction (see also catalysis).
Probably the best-known catalytic reaction is the Haber process for ammonia synthesis, where ordinary iron is used as a catalyst.
Catalytic converters made from platinum and rhodium break down some of the more harmful byproducts of automobile exhaust.
en.wikipedia.org /wiki/Catalyst   (496 words)

  
 Encyclopedia: Catalytic converter   (Site not responding. Last check: 2007-10-18)
Catalytic converters become ineffective in the presence of lead, and the introduction of catalytic converters triggered the end of leaded gasoline.
The catalytic converter was invented at Trinity College (Connecticut) Trinity College is a private liberal arts college in Hartford, Connecticut.
Catalytic converters are used on spark ignition (gasoline, liquified petroleum gas (LPG), and compressed natural gas (CNG)) rich burn engines and compression ignition (diesel, lean CNG) lean burn engines.
www.nationmaster.com /encyclopedia/Catalytic-converter   (2557 words)

  
 Wood Burners Accessories: Catalytic Convertor Replacements
Catalytic stoves use catalytic convertors and emit between 1.3 and 3.5 grams of particulate matter per hour, depending on the model.
Catalytic woodstoves are specifically engineered to operate properly with a catalytic convertor.
Federal law requires in all jurisdictions that catalytic woodstoves be maintained and operated with catalytic convertor to reduce pollution over the entire life of the stove.
www.dukefire.com /catreplacements.htm   (659 words)

  
 Catalytic Heaters
Although autopsies had yet to be performed, the catalytic heater the two men had used to heat their tent was thought to have created the conditions that caused their deaths.
A bit of the science associated with using a catalytic heater in an enclosed area is this: Carbon monoxide (CO) is produced by the incomplete combustion of the fuel/air mixture.
Catalytic heaters are fine when they are used in a truly well ventilated area.
www.rverscorner.com /info/catalytic.html   (1586 words)

  
 Catalytic Software search ends at Hyderabad   (Site not responding. Last check: 2007-10-18)
Catalytic believes that providing a fulfilling job environment was the key to retaining talent.
Catalytic believes that by using just in time concept, it will deliver to its customers a computing experience that provides help and product updates 'right now'.
Catalytic will be hiring over 1,000 software professionals in the first two years and over 4,000 by the third year of operation.
www.catalytic.com /archive/digital.html   (1130 words)

  
 Catalytic Solutions - Corporate - Executive Management
CSI has developed a unique catalytic coating and an innovative manufacturing process to apply its coating to a substrate that forms the functional element of a catalytic converter.
Catalytic converters are the pervasive means of meeting increasingly stringent emissions standards around the world for vehicles, energy production facilities and other applications.
Catalytic converters using our coated substrates are compatible with existing automotive manufacturing processes as well as specific vehicle operating specifications.
www.catsolns.com /corporate.htm   (1149 words)

  
 Chevy Catalytic Converter: Top-notch Chevy Catalytic Converters for Maximum Exhaust Efficiency
Your Chevy catalytic converter’s main responsibility is to prevent harmful emissions from mixing with the atmosphere.
So, if symptoms of a poor catalytic converter occur in your Chevy auto, it should be treated with immediate action to prevent your exhaust from producing an unreasonable amount of pollution in the air.
Catalytic converters won’t seem an essential necessity for you, but remember - inhaling clean air does not only benefit you but the people all around you.
www.innerauto.com /Chevy_Parts/Chevy_Catalytic_Converters   (330 words)

  
 G1733, Catalytic Combustors for Wood Burning Stoves and Furnaces, MU Extension
A cutaway sketch of a wood stove with a catalytic combuster.
The circular honey combed disk mounted in the baffle plate is the catalytic combustor.
Hot gases and smoke from the wood fire are forced through the catalytic combustor, at which time the combustible gases are ignited by the combustor.
muextension.missouri.edu /xplor/agguides/agengin/g01733.htm   (488 words)

  
 Exhaust: Catalytic Converter   (Site not responding. Last check: 2007-10-18)
Description: Closely resembling a muffler in appearance, the catalytic converter is located in the exhaust system and has an outer shell made of stainless steel.
The similarity with a muffler ends there as catalytic converters contain a catalyst made from a noble metal such as platinum, palladium or rhodium.
Purpose: Using its internal catalyst, a catalytic converter's job is to greatly reduce the level of harmful emissions in a car's exhaust.
www.carcarecouncil.org /Exhaust/catalytic_converter.shtml   (318 words)

  
 Howstuffworks "How Catalytic Converters Work"
To help reduce the emissions further, they have developed an interesting device called a catalytic converter, which treats the exhaust before it leaves the car and removes a lot of the pollution.
In this article, you will learn which pollutants are produced by an engine and why, and how a catalytic converter deals with each of these pollutants.
Catalytic converters are amazingly simple devices, so it is incredible to see how big an impact they have!
auto.howstuffworks.com /catalytic-converter.htm   (162 words)

  
 Catalytic Combustion   (Site not responding. Last check: 2007-10-18)
Fourth and finally, the pressure effects on methane conversion in a catalytic flow reactor are explored by a parametric study using the proposed surface chemistry and the two-dimensional numerical model.
suggest that, under fuel- lean conditions, the interaction between catalytic and gas phase reactions is not important because the heterogeneous ignition is driven by the heat release of surface reaction.
Since the operating pressure of catalytic combustors ranges from the ambient pressure (residential heater) to more than 20 atm (stationary gas turbine; Dalla Betta 1997), it is of great practical interest to understand the dependence of the catalytic reactors on pressure.
firebrand.me.berkeley.edu /cpchou/catalysis/catalysis.html   (5719 words)

  
 Catalytic converter -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-18)
Toxic car gases such as (Click link for more info and facts about unburned hydrocarbon) unburned hydrocarbon (UHC) and (An odorless very poisonous gas that is a product of incomplete combustion of carbon) carbon monoxide (CO) would not exist if the fuel to energy conversion in the engine were perfect.
When there is more oxygen than required, then the system is said to be running lean, and the system is in oxidizing conditions.
Catalytic converters become ineffective in the presence of lead, and the introduction of catalytic converters triggered the end of (Gasoline treated with a lead compound to reduce motor knocks) leaded gasoline.
www.absoluteastronomy.com /encyclopedia/c/ca/catalytic_converter.htm   (291 words)

  
 Catalytic Combustors in Wood-Burning Appliances   (Site not responding. Last check: 2007-10-18)
Catalytic combustors are similar to catalytic converters in automobiles.
Catalytic combustors last from 1 to 10 years, depending on the stove, the fuel used, and how often the stove is used.
To operate properly, a catalytic combustor has to reach at least 600o F (316o C) and hold that temperature for 10 minutes.
greennature.com /article398.html   (702 words)

  
 Catalytic converters targeted
Over the past year, experts nationwide have noticed an increase in reports of stolen catalytic converters -- devices beneath a vehicle that reduce noxious tailpipe emissions.
In Eastern Kentucky's Pike County, more than two-dozen catalytic converters were reported stolen earlier this month from vehicles parked around a busy hospital.
Catalytic converters were introduced in mainstream cars in 1974 to comply with tougher federal regulations on emissions, though they're also found on other engine-run machines, including generators, forklifts, mine equipment and trains.
www.kentucky.com /news/state/story/205805.html   (444 words)

  
 Honda Catalytic Converter at Drivewire.com
The Honda catalytic converter closely resembles a muffler in appearance and is located in the exhaust system typically towards the front of the vehicle.
The Honda catalytic converter outer shell is made up of stainless steel and the inner workings of the catalytic converter contain a catalyst made from a noble metal such as platinum, palladium or rhodium.
Honda catalytic converters become ineffective in the presence of lead, and the introduction of catalytic converters triggered the end of leaded gasoline.
www.drivewire.com /hondaparts/catalyticconverter.html   (527 words)

  
 Howstuffworks "How do I know if my catalytic converter has failed?"
In a typical passenger car, the catalytic converter, which resembles a muffler in shape, is between the engine and the muffler.
The catalytic converter generally lasts the life of the automobile and rarely has a problem with being clogged or plugged during its lifetime.
A catalytic converter relies on receiving the proper mix of exhaust gases at the proper temperature.
auto.howstuffworks.com /question482.htm   (726 words)

  
 Catalytic Converter - Catalytic Converters - Partstrain.com
The catalytic converter is an emission-control product that ensures that the exhaust coming out of your vehicle is safe from harmful substances like hydrocarbons and other harmful byproducts of your engine’s combustion process.
So if your car’s catalytic converter is already defective or clogged, it is definitely timely to replace it with a new one.
Our catalytic converters are guaranteed to have passed the highest emission tests and would surely emit a clean and safe air.
partstrain.com /ShopByDepartment/Catalytic_Converter   (466 words)

  
 Tax Differentials for Catalytic Converters and Unleaded Gasoline in Germany
Catalytic converters - which only run on unleaded fuel - have provided the German federal government with an opportunity to play a leadership role within the EU in lowering vehicle emissions.
Germany's transition to catalytic converters and unleaded gasoline required EU approval for both legal and practical reasons.
In order to promote catalytic converters, the federal government (a) introduced tax differentials for low and reduced emission vehicles, (b) exempted new cars equipped with catalytic converters from the car tax for a certain period of time.
www.iisd.org /greenbud/catconv.htm   (728 words)

  
 Mazda Catalytic Converter at Drivewire.com
The Mazda catalytic converter closely resembles a muffler in appearance and is located in the exhaust system typically towards the front of the vehicle.
The Mazda catalytic converter outer shell is made up of stainless steel and the inner workings of the catalytic converter contain a catalyst made from a noble metal such as platinum, palladium or rhodium.
Mazda catalytic converters become ineffective in the presence of lead, and the introduction of catalytic converters triggered the end of leaded gasoline.
www.drivewire.com /mazdaparts/catalyticconverter.html   (522 words)

  
 Catalytic Converter - Catalytic Converters - Partstrain.com
The catalytic converter is an emission-control product that ensures that the exhaust coming out of your vehicle is safe from harmful substances like hydrocarbons and other harmful byproducts of your engine’s combustion process.
Every road vehicle is required to have a catalytic converter, although some are equipped with two catalytic converters.
Our catalytic converters are guaranteed to have passed the highest emission tests and would surely emit a clean and safe air.
www.partstrain.com /ShopByDepartment/Catalytic_Converter   (659 words)

  
 Catalytic Software   (Site not responding. Last check: 2007-10-18)
There is a great deal of potential in the outsourcing market, and Catalytic has solid traction in a niche that has to date remained relatively under-developed.
Catalytic's model and ability to execute for ISVs, OEMs and innovative technology companies is well beyond the competition.
Catalytic is poised for a perfect takeoff and I am proud to be a part of that growth.
www.catalytic.com /archive/vinay.htm   (544 words)

  
 MSN Encarta - Search Results - Catalytic Converter
Catalytic Converter, device incorporated into the exhaust system of an automobile that reduces the amount of pollutants in the automobile's exhaust...
Chemical reactions inside the catalytic converter change most of the hazardous hydrocarbons and carbon monoxide produced by the engine into water...
Catalytic Cracking: oil refining and fractional distillation (diagram)
ca.encarta.msn.com /Catalytic_Converter.html   (166 words)

  
 Vibrant Catalytic Converters
Vibrant High-FLow Catalytic Converters are designed to increase horsepower by reducing back pressure while still meeting all EPA and CARB requirements.
Vibrant catalytic converters are made of stainless steel (the ends are made of Aluminized Steel).
We are proud to release the exhaust depot high flow catalytic converter for the 1986.5 to 1992 Toyota Supra in 3" diameter.
www.horsepowerfreaks.com /buy/Vibrant/Exhaust/Catalytic_Converters   (486 words)

  
 Delphi Internally Insulated Catalytic Converter
Delphi catalytic converters can play a significant role in helping create a cost-effective, environmentally friendly exhaust system.
Catalytic converters are a critical element of the systems used to help reduce vehicle emissions.
Because the insulation is within the converter, the outside surface temperatures are significantly lower, resulting in significantly lower heat rejection into the surrounding components.
www.delphi.com /manufacturers/auto/powertrain/gas/exhaust/iicc   (285 words)

  
 Theft of catalytic coverters on the rise in Appalachia
Theft of catalytic coverters on the rise in Appalachia
Over the past year, experts nationwide have noticed an increase in reports of stolen catalytic converters.
Catalytic converters were introduced in mainstream cars in 1974 to comply with tougher federal regulations on emissions.
www.kentucky.com /471/story/205248.html   (203 words)

  
 Catalytic Converters
Most of the aftermarket catalytic converters I've run across over the years (Bosal, Carsound, Marvin Miller, etc.) consist of a small (ie, noisy and somewhat restrictive) converter welded to a set of pipes that are bent into shape to fit the cars.
There is nothing in a catalytic converter that is combustible...construction is ceramic and stainless steel.
BMW does a nice job of engineering their catalytic converters to minimize fire risk by surrounding the catalyst with heat shields (DEC's shielding is not quite as extensive), often installing shields on the underbody of the car as well.
www.ultimategarage.com /catalyst.html   (1029 words)

  
 Catalytic Converters
The EPA approves catalytic converters that are only 30% efficient at reducing NOx emissions.
A cheaply built catalytic converter can be easily damaged after the internal padding becomes a bit worn.
Many catalytic converters that are approved and legal to install, may not actually function well enough to pass state emission tests.
pages.prodigy.net /crashh/_wsn/page8.html   (398 words)

  
 The crystal structure of the zymogen catalytic domain of complement protease C1r reveals that a disruptive mechanical ...   (Site not responding. Last check: 2007-10-18)
The crystal structure of the zymogen catalytic domain of complement protease C1r reveals that a disruptive mechanical stress is required to trigger activation of the C1 complex
The loops in the SP domains are labeled according to Perona and Craik (1997), and the ß-strands in the CCP module are numbered from B1 to B6.
Functional implications of the dimeric structure of the C1r catalytic domain in the context of the C1 complex.
embojournal.npgjournals.com /cgi/content/full/21/3/231   (5430 words)

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