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1. (US20110245575) Paraffin purification method and apparatus

Office : United States of America
Application Number: 13139422 Application Date: 21.12.2009
Publication Number: 20110245575 Publication Date: 06.10.2011
Grant Number: 08785710 Grant Date: 22.07.2014
Publication Kind : B2
Prior PCT appl.: Application Number:PCTJP2009071222 ; Publication Number: Click to see the data
IPC:
C07C 7/11
C10L 3/10
C10G 21/08
C10G 70/00
C07C 7/00
C10G 21/28
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
11
by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
L
FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K123; LIQUEFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
3
Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclasses C10G, C10K108; Liquefied petroleum gas
06
Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04139
10
Working-up natural gas or synthetic natural gas
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
21
Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
06
characterised by the solvent used
08
Inorganic compounds only
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
70
Working-up undefined normally gaseous mixtures obtained by processes covered by groups C10G9/, C10G11/, C10G15/, C10G47/, C10G51/235
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
7
Purification, separation or stabilisation of hydrocarbons; Use of additives
C CHEMISTRY; METALLURGY
10
PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
G
CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
21
Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
28
Recovery of used solvent
Applicants: Nago Hiroaki
Sumitomo Seika Chemicals Co., Ltd.
Tai Shinichi
Kawakami Junichi
Hata Hiroyuki
Morimoto Shigeru
Inventors: Nago Hiroaki
Tai Shinichi
Kawakami Junichi
Hata Hiroyuki
Morimoto Shigeru
Agents: Hamre, Schumann, Mueller & Larson, P.C.
Priority Data: 2008-327538 24.12.2008 JP
Title: (EN) Paraffin purification method and apparatus
Abstract: front page image
(EN)

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.


Also published as:
SG172215EP2383246JPWO2010074019CN102264673KR1020110114553WO/2010/074019