Method for purifying 1-octylene from Fischer-Tropsch synthetic oil products
A technology of Fischer-Tropsch synthesis and octene, applied in distillation purification/separation, organic chemistry, azeotropic distillation, etc., can solve complex problems, achieve scientific design, reduce solvent ratio, and save costs
Active Publication Date: 2012-05-16
SYNEFUELS CHINA
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Abstract
The invention relates to a method for purifying 1-octylene from Fischer-Tropsch synthetic oil products as well as an equipment system for implementing the method. The method comprises the following steps of: taking Fischer-Tropsch synthetic light fraction oil as a raw material, and carrying out secondary fraction cutting to obtain a C8 fraction segment; carrying out azeotropic distillation, and simultaneously removing acids and other organic oxygen-containing compounds from the C8 fraction segment by using a binary entrainer containing ethanol and water; then, carrying out extractive distillation to separate alkanes from olefins of the C8 fraction segment to obtain C8 olefins; and further purifying the C8 olefins through precise distillation to obtain 1-octylene products meeting polymerization-grade requirements. The invention also discloses the equipment system for implementing the method, and the equipment system comprises a first cutting tower, a second cutting tower, an azeotropic distillation tower, an extractive distillation tower, a precise distillation tower and associated equipment. The method and equipment provided by the invention have scientific and reasonable design and high economic benefit.
Application Domain
Distillation purification/separationExtractive distillation +1
Technology Topic
ChemistrySynthetic oil +12
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