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Oil and gas production handbook An introduction to oil ... - ABB Group

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chains with only two, three or four carbon a<strong>to</strong>ms, <strong>and</strong> the simplest one is<br />

ethylene. The higher olefins have chains of up <strong>to</strong> twenty or more carbon<br />

a<strong>to</strong>ms. The main olefin products are ethylene, propylene, butadiene <strong>and</strong> C4<br />

derivatives. They are used <strong>to</strong> produce plastics, as chemical intermediates,<br />

<strong>and</strong>, in some cases, as industrial solvents.<br />

7.2.1 Ethylene, derivatives<br />

Figure 27. Olefins – ethylene, derivatives<br />

Polyester <strong>and</strong> polyester resins is described under the Aromatics chain<br />

(Chapter 7.1.1).<br />

Ethanol, also known as ethyl alcohol (common alcohol), is manufactured by<br />

synthesis from ethylene. It is an oxygenated hydrocarbon used in a wide<br />

variety of high performance solvent applications (<strong>to</strong>iletries <strong>and</strong> cosmetics,<br />

paints, lacquer thinners, printing inks, dyes, detergents, disinfectants <strong>and</strong><br />

pharmaceuticals), as a chemical raw material for the <strong>production</strong> of a range of<br />

monomers <strong>and</strong> solvents, <strong>and</strong> is essential in pharmaceutical purification. In<br />

transportation, ethanol is used as a vehicle fuel by itself, blended with<br />

<strong>gas</strong>oline, or as a <strong>gas</strong>oline octane enhancer <strong>and</strong> oxygenate.<br />

Ethanolamines are prepared by the reaction of ammonia <strong>and</strong> ethylene oxide.<br />

They include monoethanolamine (MEA), diethanolamine (DEA) <strong>and</strong><br />

triethanolamine (TEA). The three are widely used in industry, principally as<br />

absorbents for acidic components of natural <strong>gas</strong> <strong>and</strong> of petroleum-refinery<br />

93

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