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Compressed Natural Gas or CNG is stored on the vehicle in high-pressure tanks - 20 to 25 MPa (200 to 250 bar, or 3,000 to 3,600 psi). Natural gas consists mostly of methane and is drawn from gas wells or in conjunction with crude oil production. As delivered through the pipeline system, it also contains hydrocarbons such as ethane and propane as well as other gases such as nitrogen, helium, carbon dioxide, sulphur compounds, and water vapour. A sulphur-based odourant is normally added to CNG to facilitate leak detection. Natural gas is lighter than air and thus will normally dissipate in the case of a leak, giving it a significant safety advantage over gasoline or LPG.
Liquefied Natural Gas or LNG is natural gas stored as a super-cooled (cryogenic) liquid. The temperature required to condense natural gas depends on its precise composition, but it is typically between -120 and -170°C (-184 and -274°F). The advantage of LNG is that it offers an energy density comparable to petrol and diesel fuels, extending range and reducing refuelling frequency.
The disadvantage, however, is the high cost of cryogenic storage on vehicles and the major infrastructure requirement of LNG dispensing stations, production plants and transportation facilities. LNG has begun to find its place in heavy-duty applications in places like the US, Japan, the UK and some countries in Europe. For many developing nations, this is currently not a practical option.
Liquefied Petroleum Gas or LPG (also called Autogas) consists mainly of propane, propylene, butane, and butylene in various mixtures. It is produced as a by-product of natural gas processing and petroleum refining. The components of LPG are gases at normal temperatures and pressures. One challenge with LPG is that it can vary widely in composition, leading to variable engine performance and cold starting performance. At normal temperatures and pressures, LPG will evaporate. Because of this, LPG is stored in pressurised steel bottles. Unlike natural gas, LPG is heavier than air, and thus will flow along floors and tend to settle in low spots, such as basements. Such accumulations can cause explosion hazards, and are the reason that LPG fuelled vehicles are prohibited from indoor parkades in many jurisdictions.
Main difference between auto lpg and lpg is 1,3 butadiene %.<0.5%Max is recommended, where as >0.5% for Bulk lpg.Crack run LPG contains more Octane number ,where as Straight run LPG contains less Octane number.
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What is the differences between LPG and CNG?
CNG is basically composed of methane whereas LPG is a mixture of propane, butane and other chemicals.Another important difference from a physical point of view is thatCNG does not liquefy under high pressure - it remains a gas, unless it is cooled down to at least - 164°C. LPG on the other hand becomes liquid when it is compressed or when it is cooled down (therefore the name "Liquefied Petroleum Gas").CNG directly comes from a gas field. The only process, which sometimes needs to be done, is filtering the gas. But usually, the gas can be used as a fuel right away after the compression process. LPG, however, is an artificial product. It is a mixture of the above-mentioned gases. Hence, these gases need to be blended, before they can be used as fuel.CNG has a greater part of Hydrogen and is therefore lighter than air (this attribute in fact makes CNG very safe: once there is a leak in the system, the gas will simply be released to the atmosphere). LPG on the other hand, is twice as heavy as air. This gas is usually a by-product which accumulates from the oil drilling as well as the refinement of oil.in addition to what is above-another difference is simply their use. CNG is mostly used in vehicles while LPG is used for cooking in place of electric stoves.LPG is abbreviation of low pressure gas and CNG is compressed natural gasCNG mainly consists of Methane(CH4), whereas LPG mainly consists of Propane(C3H8) and Butane(C4O10)
What is common between LPG and CNG?
They're both alkanes, and both gases at normal atmospheric pressures and standard temperatures. However, LPG is propane, and CNG is mainly methane; the two have different combustion characteristics, and can't be freely interchanged without making modifications to the hardware that uses them.
When cng or lpg undergoes complete combustion what products are formed?
When CNG or LPG undergo complete combustion, the products formed are carbon dioxide (CO2) and water (H2O). This process releases energy in the form of heat and light.
What is the difference between LNG and LPG?
LNG is liquefied natural gas, while LPG is liquefied petroleum gas.LNG is mostly methane which is temporarily cooled in order to liquefy the gas. LNG must be refigerated to a cryogenic temperature of about -162C (-260F) in order to liquefy the gas and stays at or slightly above atmospheric pressure. LNG must be refrigerated because room temperature is above the critical point of methane, meaning no liquid can be condensed at this temperature (no matter what the pressure is).LPG is a mixture of propane and butane (in no specific proportion) which is stored in a pressurized container and is stored at room temperature. Butane and propane have a higher critical point, and therefore pressurization is sufficient to liquefy the fuel.
What is a hydrocarbon other than gasoline or kerosene?
petrol,LPG,natural gas,diesel petrol,LPG,natural gas,diesel,CNG petrol,LPG,natural gas,diesel,CNG
What is the octane number to CNG and LNG?
cng - 120 and lpg 110
LPG vs LNG?
LPG contains propane and butane LNG contains methane
Can a car run with the both LPG and CNG?
yes, a car with gasoline engine can run with petrol,cng, and lpg.
What are the advantages of LPG over cng?
LPG are easily portable
We get only lpg in car?
CNG & Only CNG Micheal 9310584008
Can cng car run on lpg?
No
Can you use cng in a lpg tank?
No
What gas is used in Mexico Cng or LPG?
Mexico uses LPG.
Why CNG is preferred over LPG in cars?
CNG is cheaper. CNG gives more mileage. CNG is the best as it is eco frendily.
Can you run your CNG car on LPG?
yes
What do cars run on fuel?
Gasoline, Diesel, CNG, LPG.
What is the cause of combustion in car engine?
For a gas, E85, or LNG/LPG/CNG engine, it's a spark from the spark plug igniting the fuel air mixture. For a diesel engine, it's compression which causes the combustion to occur.
