LPC meaning in Chemistry ?

Answer:

What is Liquefied Petroleum Gas mean?

Liquefied petroleum gas (LPG, LP gas, or condensate), is a flammable mixture of hydrocarbon gases such as propane and butane.

LPG is used as fuel gas in heating appliances, cooking equipment, and vehicles. It is increasingly used as an aerosol propellant and a refrigerant, replacing chlorofluorocarbons in an effort to reduce damage to the ozone layer. When specifically used as a vehicle fuel it is often referred to as autogas.

Varieties of LPG that are bought and sold include mixes that are mostly propane (C
3H
8), mostly butane (C
4H
10), and, most commonly, mixes including both propane and butane. In the northern hemisphere winter, the mixes contain more propane, while in summer, they contain more butane. In the United States, mainly two grades of LPG are sold: commercial propane and HD-5. These specifications are published by the Gas Processors Association (GPA) and the American Society of Testing and Materials. Propane/butane blends are also listed in these specifications.

Propylene, butylenes and various other hydrocarbons are usually also present in small concentrations such as C
2H
6 ,CH
4, and C
3H
8. HD-5 limits the amount of propylene that can be placed in LPG to 5% and is utilized as an autogas specification. A powerful odorant, ethanethiol, is added so that leaks can be detected easily. The internationally recognized European Standard is EN 589. In the United States, tetrahydrothiophene (thiophane) or amyl mercaptan are also approved odorants, although neither is currently being utilized.

LPG is prepared by refining petroleum or "wet" natural gas, and is almost entirely derived from fossil fuel sources, being manufactured during the refining of petroleum (crude oil), or extracted from petroleum or natural gas streams as they emerge from the ground. It was first produced in 1910 by Dr. Walter Snelling, and the first commercial products appeared in 1912. It currently provides about 3% of all energy consumed, and burns relatively cleanly with no soot and very few sulfur emissions. As it is a gas, it does not pose ground or water pollution hazards, but it can cause air pollution. LPG has a typical specific calorific value of 46.1 MJ/kg compared with 42.5 MJ/kg for fuel oil and 43.5 MJ/kg for premium grade petrol (gasoline). However, its energy density per volume unit of 26 MJ/L is lower than either that of petrol or fuel oil, as its relative density is lower (about 0.5–0.58 kg/L, compared to 0.71–0.77 kg/L for gasoline).

Besides using as energy carrier, the LPG is also a promising feedstock in the chemical industry for the synthesis of olefins such as ethylene, propylene, butene as well as acrylic acid.

As its boiling point is below room temperature and heat, LPG will evaporate quickly at normal temperatures and pressures and is usually supplied in pressurized steel vessels. They are typically filled to 80–85% of their capacity to allow for thermal expansion of the contained liquid. The ratio between the volumes of the vaporized gas and the liquefied gas varies depending on composition, pressure, and temperature, but is typically around 250:1. The pressure at which LPG becomes liquid, called its vapour pressure, likewise varies depending on composition and temperature; for example, it is approximately 220 kilopascals (32 psi) for pure butane at 20 °C (68 °F), and approximately 2,200 kilopascals (320 psi) for pure propane at 55 °C (131 °F) (This comparison is quite worthless as with an increase of temperature, there also exists an increase of pressure. As such, the vapor pressure of butane at 55°C or propane at 20°C is necessary). LPG is heavier than air, unlike natural gas, and thus will flow along floors and tend to settle in low spots, such as basements. There are two main dangers to this. The first is a possible explosion if the mixture of LPG and air is within the explosive limits and there is an ignition source. The second is suffocation due to LPG displacing air, causing a decrease in oxygen concentration.

A full LPG cylinder contains 86% liquid; the ullage volume will cont reference

Full Form	Category
Library Publishing Coalition	Academic & Science
Life Pacific College	Academic & Science
Losing Percentage	Academic & Science
Long Period Comets	Academic & Science
Legal Practice Course	Academic & Science
Lompoc (ca)	Airport Code
Lakeshore Paddleboard Company	Business
Lincoln Property Company	Business
Loss Prevention Certified	Business
Loan Pricing Corporation	Business
Logistics Property Co	Business
Lightning Protection Corporation	Business
Luethi Peterson Camps	Business
Lower Production Center	Business
Low-pressure Chamber	Chemistry
Liquefied Petroleum Gas	Chemistry
Linux Plumbers Conference	Community
Lancaster Presbyterian Church	Community
Lund pe charh	Community
Literature Philosophy Culture	Community
Late Posters Club	Community
Linear Predictive Coding	Computer and Networking
Laser Power Controller	Computing
Legacy Printer Controller	Computing
Link Protocol Converter	Computing
Local Process Communication	Computing
Local Procedure Call	Computing
Line Printer Control	Computing
Las Positas College	Educational Institute
Laser Particle Counter	Electronics
Liquid-borne Particle Counter	Electronics
Low Particle Concentration	Electronics
Printer Driver (teko)	File Type
Sound (linear Predictive Coding)	File Type
Labor Productivity and Costs	General
Longmont Power and Communications	General
Landmarks Preservation Commission	General
Laboratoire de Physique Corpusculaire	General
Large Pixel Collider	General
Lars Pensjö C	General
Licensed Professional Counselors	General
Langage parlé complété	General
Looks Personality Closeness	General
Lun py char	General
Liberated Pixel Cup	General
Live Parental Controls	General
Low Power Consumption	General
Loaring Personal Coaching	General
Lotus Performance Cars	General
Lance Personal Carry	General
Lighting Playback Controller	General
Lurker Player Character	General
Leather Personnel Carrier	General
Landmark Preservation Commission	General
Log Processing Card	General
Light Passenger Car	General
Limited Production Cars	General
License Plate Capture	General
Love Prayers And Compassion	General
Late Positive Component	General
Lesser Prairie Chicken	General
Least Preferred Coworker	General
Little Plastic Castle	General
The Liquid Pop Collective	General
Lorenz Performance Curve	General
Low Pin Count	General
Lead Pipe Cinch	General
Label Printing Center	General
Loss Prevention Council	Governmental
Liberal Party of Canada	Governmental
Last Pay Certificate	Governmental
Likely Public Charge	Governmental
Linkin Park Community	Governmental
Lahore Transport Company	Governmental
Lars Pensj	Information Technology
Lesbian Power Couple	Internet
Licensed Professional Counselor	Medical
Laurel Pregnancy Center	Medical
Laboratory Pasteurized Count	Medical
Last Patient Complete	Medical
Late Positive Complex	Medical
Lateral Periodontal Cyst	Medical
Lipid Protein Complex	Medical
Local Pharmaceutical Committee	Medical
Loose Patch Clamp	Medical
lysophosphatidylcholine	Medical
Light Personnel Carrier	Military and Defence
Laser Pressure Catapulting	Military and Defence
Lan (local Area Network) Party Coverage	Networking
Lhc Physics Center	Physics Related