A kind of desulfurization refining system and method of dicyclopentadiene
A dicyclopentadiene and refining device technology, applied in chemical instruments and methods, hydrocarbon purification/separation, membrane purification/separation, etc., can solve the problems of low added value of downstream products, lack of core competitiveness, poor production pertinence, etc. , to achieve the effect of easy implementation, small investment and safe process
Active Publication Date: 2016-04-27
BC P INC CHINA NAT PETROLEUM CORP +1
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Problems solved by technology
[0005] At present, compared with similar foreign products, the purity of dicyclopentadiene produced in China is low, the production is poorly targeted, the added value of downstream products is low, and the core competitiveness is lacking.
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[0025] Such as figure 1 As shown, a dicyclopentadiene desulfurization refining system includes a stripping tower 1, a primary condenser 2, and a secondary condenser 3.
[0026] The bottom of the stripping tower 1 is provided with a nitrogen input port and a dicyclopentadiene output port, and the top of the stripping tower 1 is respectively provided with a mercaptan-containing dicyclopentadiene input port and a mixed gas output port; the mixed gas output port is connected to the pipe I Steam permeable membrane module 4, the top of the steam permeable membrane module 4 is provided with a circulating nitrogen flow outlet, and the bottom of the steam permeable membrane module 4 is provided with an outlet for enriched sulfur-containing compound gas, and the enriched sulfur-containing compound gas outlet is condensed by a vacuum pump 5 The bottom of the primary condenser 2 is connected with the secondary condenser 3, and the top of the deep condenser 6 is connected; the bottom of the s...
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Abstract
The invention relates to a desulphurization refining system of dicyclopentadiene. The system comprises an air stripping tower, a primary condenser and a secondary condenser. The bottom of the air stripping tower is provided with a nitrogen inlet and a dicyclopentadiene outlet, and the top of the air stripping tower is equipped with a dicyclopentadiene inlet and a gas mixture outlet. The gas mixture outlet is connected with a vapor permeation membrane assembly, the top of which is provided with a circulating nitrogen flow outlet and the bottom of which is provided with a sulfocompound gas outlet. The sulfocompound gas outlet is connected with the primary condenser, the bottom of which is connected with the secondary condenser. The top of the primary condenser is connected with a deep condenser. The bottom of the secondary condenser is provided with a dicyclopentadiene solid discharge outlet, and the side wall of the secondary condenser is provided with a sulphur-containing organic liquid discharge outlet. The side wall of the deep condenser is provided with a sulfocompound liquid discharge outlet, and the top of the deep condenser is provided with a gas discharge outlet. The circulating nitrogen flow outlet and the gas discharge outlet are both connected with the nitrogen inlet. The invention also discloses an application method of the system. According to the invention, product purity can be effectively raised.
Description
Technical field [0001] The invention relates to the technical field of purification of chemical products, in particular to a dicyclopentadiene desulfurization refining system and a method thereof. Background technique [0002] Dicyclopentadiene, abbreviated as DCPD in English, has a boiling point of 170°C (decomposition) and a freezing point of 31.5°C. It is an important chemical raw material. High-purity dicyclopentadiene can be used to produce petroleum resin, modified unsaturated polyester, EPDM rubber and polycyclopentadiene, etc. It can also be used as pesticides, fragrances, epoxy resin curing agents, lubricant additives, Raw material for chemical products such as flame retardant, adamantane, glutaraldehyde, pentanediol, sebacic acid, tricyclodecenol, etc. Dicyclopentadiene is mainly derived from the by-product of ethylene cracking. In the by-product C5 fraction of cracking, the content of dicyclopentadiene is about 15%, and the dicyclopentadiene obtained at the top of the...
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IPC IPC(8): C07C13/61C07C7/00C07C7/144
Inventor 陈明衍孙津生陈来锁郭长宁白岩王弘高红葛详王少静高瑛
Owner BC P INC CHINA NAT PETROLEUM CORP