Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="sakuraguy" data-source="post: 1697479" data-attributes="member: 6441">The "crude oil" pumped out of the ground is a black liquid called petroleum. This liquid contains aliphatic hydrocarbons, or hydrocarbons composed of nothing but hydrogen and carbon. The carbon atoms link together in chains of different lengths. It turns out that hydrocarbon molecules of different lengths have different properties and behaviors. For example, a chain with just one carbon atom in it (CH4) is the lightest chain, known as methane. Methane is a gas so light that it floats like helium. As the chains get longer, they get heavier. The first four chains -- CH4 (methane), C2H6 (ethane), C3H8 (propane) and C4H10 (butane) -- are all gases, and they boil at -161, -88, -46 and -1 degrees F, respectively (-107, -67, -43 and -18 degrees C). The chains up through C18H32 or so are all liquids at room temperature, and the chains above C19 are all solids at room temperature. The different chain lengths have progressively higher boiling points, so they can be separated out by distillation. This is what happens in an oil refinery -- crude oil is heated and the different chains are pulled out by their vaporization temperatures. (See How Oil Refining Works for details.) The chains in the C5, C6 and C7 range are all very light, easily vaporized, clear liquids called naphthas. They are used as solvents -- dry cleaning fluids can be made from these liquids, as well as paint solvents and other quick-drying products. The chains from C7H16 through C11H24 are blended together and used for gasoline. All of them vaporize at temperatures below the boiling point of water. That's why if you spill gasoline on the ground it evaporates very quickly. Next is kerosene, in the C12 to C15 range, followed by diesel fuel and heavier fuel oils (like heating oil for houses). Next come the lubricating oils. These oils no longer vaporize in any way at normal temperatures. For example, engine oil can run all day at 250 degrees F (121 degrees C) without vaporizing at all. Oils go from very light (like 3-in-1 oil) through various thicknesses of motor oil through very thick gear oils and then semi-solid greases. Vasoline falls in there as well. Chains above the C20 range form solids, starting with paraffin wax, then tar and finally asphaltic bitumen, which used to make asphalt roads. All of these different substances come from crude oil. The only difference is the length of the carbon chains!</blockquote>

Verification

The Marketplace Latest

Mitsubishi lancer Evo x front bumper
- Started by jeff6126
- Exterior and Body
Honda jazz fit gk flrs body kit
- Started by jeff6126
- Exterior and Body
Proton S70 body kit
- Started by jeff6126
- Exterior and Body
Proton saga BLM body kit
- Started by jeff6126
- Exterior and Body
Perodua bezza ~accident repair
- Started by jeff6126
- Exterior and Body
Mercedes Benz W205 C-class GT grille
- Started by jeff6126
- Exterior and Body
BMW E90 ~brake caliper spray ~rim spray
- Started by jeff6126
- Exterior and Body
Honda city gm6 FL front bumper
- Started by jeff6126
- Exterior and Body
original rare spec Rays Volk Racing RE30 15x7jj...
- Started by david tao
- Chassis and Wheels
original rare Rays Volk Racing TE37 SAGA S-Plus...
- Started by david tao
- Chassis and Wheels

Posts refresh every 5 minutes

Auto Express 2018 Summer Tyre Test

http://www.autoexpress.co.uk/accessories-tyres/91870/tyre-test-2018-results-by-category

Overall
1st Continental 100%
=2nd Dunlop 99.70%
=2nd Michelin 99.70%
4th Goodyear 99.50%
=5th Falken 99.30%...

Achilles Asian Drift Series 2012 Back to Lay Down Burnt Rubber!

The Formula Drift Series is returning this year for a four leg campaign across Asia with the...

Improve ALtezza HP

i just wanted to improved my altezza power...so what shud i do other than add turbo ? i dun want to add turbo 1st...
1 of my fren told me that pasang haltech engine management to improve hp..isit ok ? currently my...