Refinery
A refinery is a production facility composed of a group of
into products of value.Types of refineries
Different types of refineries are as follows:
- lubricating oils, bitumen, and petroleum coke
- Edible oil refinery which converts cooking oil into a product that is uniform in taste, smell and appearance, and stability
- Sugar refinery, which converts sugar cane and sugar beets into crystallized sugar and sugar syrups
- Salt refinery, which cleans common salt (NaCl), produced by the solar evaporation of sea water, followed by washing and re-crystallization
- Metal refineries refining metals such as
- Iron refining, a stage of refining pig iron (typically grey cast iron to white cast iron), before fining, which converts pig iron into bar iron or steel[1]
A typical oil refinery
The image below is a schematic flow diagram of a typical oil refinery depicting various unit processes and the flow of intermediate products between the inlet crude oil feedstock and the final products. The diagram depicts only one of the hundreds of different configurations. It does not include any of the usual facilities providing utilities such as steam, cooling water, and electric power as well as storage tanks for crude oil feedstock and for intermediate products and end products.[2][3][4][5][6]
Natural gas processing plant
The image below is a schematic block flow diagram of a typical natural gas processing plant. It shows various unit processes converting raw natural gas into gas pipelined to end users.
The block flow diagram also shows how processing of the raw natural gas yields byproduct sulfur, byproduct ethane, and natural gas liquids (NGL) propane, butanes and natural gasoline (denoted as pentanes +).[7][8][9][10][11]
Sugar refining
Sugar is generally produced from sugarcane or sugar beets. As the global production of sugar from sugarcane is at least twice the production from sugar beets, this section focuses on sugarcane.[12]
Milling
Sugarcane is traditionally refined into sugar in two stages. In the first stage, raw sugar is produced by the milling of harvested sugarcane. In a sugar mill, sugarcane is washed, chopped, and shredded by revolving knives. The shredded cane is mixed with water and crushed. The juices (containing 10-15 percent
The fibrous solids, called bagasse, remaining after the crushing of the shredded sugarcane are burned for fuel which helps a sugar mill to become self-sufficient in energy. Any excess bagasse can be used for animal feed, to produce paper, or burned to generate electricity for the local power grid.
Refining
The second stage is often executed in heavy sugar-consuming regions such as North America, Europe, and Japan. In the second stage, white sugar is produced that is more than 99 percent pure sucrose. In such refineries, raw sugar is further purified by fractional crystallization.
References
- ISBN 1-902653-79-3, p.126
- ISBN 0-8247-7150-8.
- ^ Guide to Refining Archived 2006-08-08 at the Wayback Machine from Chevron Oil's website
- Universal Oil Products' website
- ^ An example flowchart Archived 2005-12-22 at the Wayback Machine of fractions from crude oil at a refinery
- ISBN 978-3527306732.
- ^ Natural Gas Processing: The Crucial Link Between Natural Gas Production and Its Transportation to Market Archived 2011-03-04 at the Wayback Machine
- ^ Example Gas Plant Flow Diagram
- ^ From Purification to Liquefaction Gas Processing Archived 2010-01-15 at the Wayback Machine
- ^ Feed-Gas Treatment Design for the Pearl GTL Project
- ^ Benefits of integrating NGL extraction and LNG liquefaction
- ISBN 978-3527306732.
- ^ Shore, M.; Broughton, N.W.; Dutton, J.V.; Sissons, A. (1984). "Factors affecting white sugar colour" (PDF). Sugar Technology Reviews. 12: 1–99.
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