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Difference Between Oil and Gas

Jilani — Tue, 11 May 2010 22:14:57 +0000

Oil vs Gas

The Difference between oil and gas is that the term oil refers to hydrocarbon mixtures that are liquid at room temperature, whereas gas is a mixture of gas formed from the fossil remains buried deep in the Earth. Gas can be associated with oil, or found alone.

Oil has a high density with a low rate of diffusion, whereas gas has an incredibly low density and viscosity. Oil is an unctuous flammable substance which is not water soluble, whereas gas is an aeriform fluid. Oil has various forms of compositions and types, such as rock oil, mineral oil and crude oil. Gas is a mixture of many other gases, and is used for heating, cooking, producing electricity and drying clothes. Gas is used with the help of pressure and temperature, that cast affects on the particles and is referred to as compressibility. Many types of oil are found naturally, and some are processed. We call motor oil, olive oil or crude oil etc. according to the applications and compositions.

Oil and gas are used as fuels, and they are non-renewable energy forms. Oil and gas are both used for heating homes and buildings, but natural gas, when compared to oil, is much cheaper. Oil is also more polluting when compared to gas. Oil is used as a backup fuel for gas. Gas is more widely spread as a heating fuel, and has reduced the usage of oil as a heating oil.

Residual fuel contains relatively high amounts of sulfur, and has undesirable properties which make it less useful, and also the cheapest. It also cannot be used for cars or vehicles because it requires heating before use. Gas has replaced oil in the industrial sector, and gas wins over oil because it is comparatively cheaper and less hazardous to the environment, whereas oil use falls under regulations of environmental restrictions on emissions.

When compared to oil, gas gives off a lot of heat and light, but does not produce smoke. Because it burns brighter, cleaner and hotter than other fossil fuels, like coal and oil, it has become the first choice as a fuel. A gas supply is also reliable, and gas pipes are buried safely underground.

Summary:
1. Oil is an unctuous combustible substance, and gas is an aeriform fluid.
2. Gas is cheaper and a more reliable source of fuel when compared to oil.
3. Oil is not water soluble, and is temporarily used as backup fuel when a gas supply is not available.
4. Gas has replaced oil in various industrial applications, because, it is not only cheaper, but gives smoke free heat.
5. Oil is potentially more dangerous to the environment than gas.You might also like…

Difference Between Electric and Gas Dryers

Ian — Thu, 07 Jan 2010 04:48:31 +0000

Electric vs Gas Dryers

Clothes dryers are common household appliances in many developed countries, particularly the united States. Millions of such appliances are manufactured every year. They are indeed valuable domestic devices as they are reliable, and make the chore of drying clothes and garments fast and easy. Additionally, the production cost of these appliances is very cheap and easy as well.

Principally, dryers are not as complicated as many people may think. A clothes dryer has a tumbler to hold the clothes, and a heater that heats the air that is drawn through it. The air that passes through heats up, and dries the clothes inside the tumbler, as the tumbler rotates for a balanced exposure. The water from the clothes will, of course, vaporize, and be sucked out by the dryer’s exhaust vent. These are the primary elements of clothes dryers. The heater, however, will generally have two ways to create heat. It is either by natural gas or by electric power. Thus, there are categorically two types of dryers, the electric dryer and the gas dryer.

Each has it’s own advantages and disadvantages. Here are some of them:

Electric dryers are usually cheaper to buy. However, the operating cost is considerably more expensive. Drying the clothes with electric dryers takes a bit more time, and time is money, especially when electric power is involved in the heating process. The heating element in electric dryers will consume lots of power, which is typically more than 4,000 watts.

On the other hand, electric dryers are easy to install, since electric sockets, plugs, and extensions are readily available. This feature is perhaps the main advantage of electric dryers over their gas counterparts, since gas dryers will certainly need a gas line and an optional gas meter for monitoring purposes.

Gas dryers are a bit more expensive. However, their edge is their considerably cheaper operating cost. Over time, the cheap cost of operation will prove to be a good investment. The time it takes to dry clothes with a gas dryer is quicker; therefore, only a small amount of gas is needed. Nowadays, gas dryers are smarter, since they already have sensors to make the appliance shut off when the desired dryness is achieved.

Summary:

1. Electric dryers are cheaper to buy, but have significantly higher operating costs. Gas dryers, on the other hand, are slightly more expensive, but have low operating costs.

2. Electric dryers are easier to install than gas dryers.

3. Electric dryers require more time to dry clothes, while gas dryers are quicker and more efficient.

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Difference Between CNG And LPG

N Amit — Sun, 15 Nov 2009 17:15:59 +0000

CNG vs LPG

CNG or Compressed Natural Gas is mainly composed of Methane while LPG or Liquefied Petroleum Gas is mainly composed of propane, butane and other gasses.

Another major difference is that LPG is in liquid form under high pressure. At normal temperature and pressure this is a gas. CNG on the other hand does not become a liquid even at high pressure. To liquefy it the temperature needs to lower than -164 degrees.

Compressed Natural Gas, after it is extracted, only needs to be filtered a little and pressurized. It may be used as fuel even before the filtration process. Liquefied Petroleum Gas on the other hand is generally a bi-product of the drilling process or the refinement of crude oil.

CNG is lighter than air, hence, in case of a leak from a tank or a pipeline it can immediately go higher up in the air and disperse quickly making it very safe. LPG on the other hand is twice heavier than air and will accumulate around the area of the leak making it very volatile and dangerous. To detect the leaks quickly ethanethiol is added to the gas so that its powerful odor can easily be picked up.

The pollutants released into the atmosphere by CNG upon combustion are far less than LPG mainly due to the fact that the CNG consists of mainly methane only.

In the US LPG is far more popular as Auto fuel than the CNG. There are numerous certified installers for LPG kits on to a conventional car or truck. There are estimated to be more than 270,000 LPG vehicles in the US. While CNG vehicles are still less, Honda Civic has recently been launched in the CNG version and more auto makers are trying to catch up. In countries like Brazil, Argentina, Italy, India, Pakistan, Thailand, China and Iran CNG is much more popular than LPG as auto fuel and has a higher availability at filling stations.

Summary:
1. CNG or Compressed Natural Gas is mainly composed of Methane while LPG or Liquefied Petroleum Gas is mainly composed of propane, butane and other gasses.
2. CNG is mainly Methane at a very high pressure while LPG is Propane, Butane and other gasses.
3. CNG remains in gas form even at higher pressure while LPG liquefies.
4. While LPG is usually a bi product of the drilling or the refining process, the CNG is extracted as it is and supplied with minimum of processing.
5. CNG is a much cleaner fuel and very popular abroad while in the US LPG is quite popular.You might also like…

Difference Between Xenon and Halogen

Abishek — Thu, 12 Nov 2009 02:15:59 +0000

Xenon vs Halogen

Xenon is an inert gaseous element represented as Xe. Xenon is a heavy, odorless, colorless noble gas that is present in traces in the atmosphere of the Earth. Xenon comprises of nine stable isotopes and another 40 unbalanced isotopes that endure radioactive decomposition. On the other hand the halogens are a set of non-metal elements in the Periodic Table from Group 17 IUPAC Style (formerly: VII, VIIA) of the periodic table. These include,

Fluorine (F)
Chlorine (Cl)
Bromine (Br)
Iodine (I)
Astatine (At)

Other than these 5 elements, scientists are of the view that the undiscovered element 117, conditionally denoted to as ununseptium (the systematic name) can also be a potential halogen.

Xenon is essentially a gas that is un-reactive. But it can undergo a few chemical reactions forming hexafluoroplatinate which is the original noble gas complex to be created. On the other hand the entire group of halogen elements present in the periodic table exist in all three familiar states of matter include solid, liquid and gaseous under standard pressure and temperature conditions.

Talking of Xenon Compounds, previously it was believed that the noble gas of xenon was unable to form compounds. But then in 1962 scientist Neil Bartlett discovered that it could form compounds and hence a number of discoveries followed. Some of the common xenon compounds are,

Halides
Fluorides
Oxides
Oxohalides
Clathrates and excimers

On the other hand, all the elements in the halogen series form binary compounds reacting with hydrogen. The common compounds include,

Hydrogen halides
Interhalogen compounds
Organohalogen compounds
Polyhalogenated compounds

Xenon is extensively used as a common anesthetic and also in arc and lash lamps. This particular gas is also used to trace hypothetical feebly intermingling massive particles and also as an ion thrusters propellant in spacecraft. Haloalkanes find extensive use as flame retardants, refrigerants, propellants, fire extinguishers, and solvents.

Summary:
1. Xenon is a particular chemical constituent that is an inert gaseous element which is heavy, odorless, and colorless and is present in traces in the atmosphere of the Earth. On the other the halogens are a set of non-metal elements in the Periodic Table from Group 17 IUPAC Style (formerly: VII, VIIA) of the periodic table.

2. Xenon is essentially a gas that is un-reactive. On the other hand the entire group of halogen elements present in the periodic table exist in all three familiar states of matter include solid, liquid and gaseous under standard pressure and temperature conditions.

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Difference Between Vapor and Gas

Kivumbi — Sat, 07 Nov 2009 20:15:13 +0000

Vapor vs Gas

A gas refers to a substance that has a single defined thermodynamic state at room temperature whereas a vapor refers to a substance that is a mixture of two phases at room temperature, namely gaseous and liquid phase. This also means that a vapor is a substance that has experienced some sort of phase change at room temperature. A gas is a substance whose molecules are in constant free motion past each other and can be compressed, which can also be referred to as a compressible fluid. When no liquid or solid can form at the temperature of the gas it is called a fixed gas.
It is worth noting that when referring to the four states of matter there is a ‘gas phase’ which does not necessarily refer to a gas as a distinct element but rather represents differences in interrelationships of molecules. A gas has its single gas particles vastly separated, making a gas invisible to the eye.

When a substance is at a temperature below its critical temperature it is in a ‘gas phase’ and therefore will be a vapour. A vapour can co-exist with a liquid or solid when they are in equilibrium state. Therefore from this we can infer that a vapour is a gas state of a substance at a temperature where it can co-exist with its liquid or solid state so for a liquid or solid to become vapour it does not have to first boil.

It is also of paramount importance to note that vapour is a result of the two types of vaporization of a liquid which are boiling and evaporation, the transition from liquid phase to ‘gas phase’. Evaporation occurs at the surface of the liquid when its temperature is below the boiling temperature at a given pressure. Boiling occurs below the surface of the liquid.

Summary:
1. A gas has one defined state at room temperature whereas a vapour is a substance that is in gaseous and liquid equilibrium at room temperature, at a given pressure. A gas can also refer to a single element of matter with its own unique physical and chemical properties, for example oxygen, nitrogen and neon.
2. Because vapour is actually the gaseous state of an element, vapour particles will be of a single element and may have a definite shape whereas gas particles when observed under microscopic view do not have a definite shape and will be a collection of atoms, ions, electrons and molecules. However both gas and vapour particles are in a random motion, colliding with each other or the walls of the containing vessel when observed under a microscope.You might also like…