Device and method for separating olefin from Fischer-Tropsch synthetic oil

A Fischer-Tropsch synthetic oil and olefin technology, which is applied in the field of coal chemical industry, can solve the problems of high equipment operation cost, low economic value, and complicated process flow, and achieve the effects of reducing high operating cost, improving economic benefits, and simple process
CN109652111AInactive Publication Date: 2019-04-19BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
Publication Date
2019-04-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a device and a method for separating olefin from Fischer-Tropsch synthetic oil. The device combines a partition wall tower and an extractive rectification technology, a partition plate is arranged in the partition wall tower, the partition wall tower is divided into an extractive fraction part, a rectification part and a public stripping part, and the extractive fraction part is used for extracting alkane; the side line rectification section is used for extracting olefin, and the public stripping section is used for extracting the mixture of oxygen-containing compound and extractant, thereby realizing the purpose that alkane, olefin and oxygen-containing compound can be simultaneously separated from the cut Fischer-Tropsch synthetic oil in a partition tower, and caneffectively reduce the problems of high equipment cost and high operation cost when olefin is separated from the Fischer-Tropsch synthetic oil fraction, thereby improving the economic benefit of theoil product.
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Description

technical field

[0001] The invention relates to the field of coal chemical industry, in particular to a device and method for separating olefins from Fischer-Tropsch synthetic oil. Background technique

[0002] At present, coal-based Fischer-Tropsch crude oil products are mainly used as primary chemical raw materials or fuel oil, with low economic benefits and weak market competitiveness. After analysis, Fischer-Tropsch synthetic oil crude oil products have complex components, including long-chain olefins, normal alkanes, and oxygenates such as alcohols, ketones, aldehydes, and esters. Long-chain olefins are the main components of high-end oil products. If long-chain olefins (carbon chain length ≥ 5) in Fischer-Tropsch crude oil products are separated, not only long-chain olefins with high added value can be obtained, but also High-end oil products such as clean and high-quality aviation kerosene, extracted solvent oil, and lubricating oil with long chains, so as to improve ...

Claims

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