Search results
Results From The WOW.Com Content Network
Ethylene is produced by several methods in the petrochemical industry. A primary method is steam cracking (SC) where hydrocarbons and steam are heated to 750–950 °C. This process converts large hydrocarbons into smaller ones and introduces unsaturation. When ethane is the feedstock, ethylene is the product.
The chief use of ethane is the production of ethylene (ethene) by steam cracking. Steam cracking of ethane is fairly selective for ethylene, while the steam cracking of heavier hydrocarbons yields a product mixture poorer in ethylene and richer in heavier alkenes (olefins), such as propene (propylene) and butadiene, and in aromatic hydrocarbons.
It is the principal industrial method for producing the lighter alkenes (or commonly olefins), including ethene (or ethylene) and propene (or propylene). Steam cracker units are facilities in which a feedstock such as naphtha , liquefied petroleum gas (LPG), ethane , propane or butane is thermally cracked through the use of steam in steam ...
PetroChina's (PTR) ethane-to-ethylene project will likely generate 600,000 tons of ethylene annually, 300,000 tons of high-density polyethylene and 300,000 tons of full-density polyethylene.
The products produced in the reaction depend on the composition of the feed, the hydrocarbon-to-steam ratio, and on the cracking temperature and furnace residence time. Light hydrocarbon feeds such as ethane, LPGs or light naphtha give product streams rich in the lighter alkenes, including ethylene, propylene, and butadiene.
Ethylene derivatives are found in food packaging, eyeglasses, cars, medical devices, lubricants, engine coolants and liquid crystal displays. Ethylene production by steam cracking consumes large amounts of energy and uses oil and natural gas fractions such as naphtha and ethane. The oxidative coupling of methane to ethylene is written below: [1 ...
Ethylene oxide is an organic compound with the formula C 2 H 4 O. ... They result in a gas mixture containing acetaldehyde, ethane, ethyl, methane, hydrogen, ...
At the Fife Ethylene Plant [7] ethane feedstock from the NGL plant is treated to remove carbon dioxide (CO 2). An amine based solution is used to 'wash' the feedstock to remove CO 2. [8] Ethane is mixed with superheated steam and heated to 800-900°C in seven cracking furnaces to crack it into ethylene (ethene) (C 2 H 4 or H 2 C=CH 2).