Paraffin purification method and apparatus

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United States of America Patent

PATENT NO 8785710
APP PUB NO 20110245575A1
SERIAL NO

13139422

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Abstract

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A method for purifying a paraffin from a source material containing a paraffin having 2 to 6 carbon atoms and an olefin having 2 to 6 carbon atoms includes a first step of bringing the source material into contact with a silver ion-containing solution (absorption liquid) at a predetermined temperature and pressure in an absorption column 1 and recovering a non-absorbed gas not absorbed by the absorption liquid while the olefin in the source material is preferentially absorbed by the absorption liquid, and a second step of desorbing and discharging a gas component from the absorption liquid having undergone the first step at a predetermined temperature and pressure in a desorption column 2. The first step and the second step are performed continuously in parallel while the absorption liquid is circulated between the first step and the second step.

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Patent Owner(s)

  • SUMITOMO SEIKA CHEMICALS CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hata, Hiroyuki Hyogo, JP 24 175
Kawakami, Junichi Hyogo, JP 19 100
Morimoto, Shigeru Hyogo, JP 50 480
Nago, Hiroaki Hyogo, JP 2 6
Tai, Shinichi Hyogo, JP 10 40

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