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.
petrol,LPG,natural gas,diesel petrol,LPG,natural gas,diesel,CNG petrol,LPG,natural gas,diesel,CNG
May be we have to use CNG and LPG
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.
co2 only
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.
cng - 120 and lpg 110
What is the difference between properties of CNG and LPG?
LPG contains propane and butane LNG contains methane
yes, a car with gasoline engine can run with petrol,cng, and lpg.
LPG are easily portable
CNG & Only CNG Micheal 9310584008
No
No
Mexico uses LPG.
CNG is cheaper. CNG gives more mileage. CNG is the best as it is eco frendily.
yes
petrol,LPG,natural gas,diesel petrol,LPG,natural gas,diesel,CNG petrol,LPG,natural gas,diesel,CNG