Title:
PRODUCTION OF OILFIELD HYDROCARBONS
Document Type and Number:
WIPO Patent Application WO/2016/019403
Kind Code:
A3
Abstract:
A process (20) to produce olefinic products suitable for use as or conversion to oilfield hydrocarbons includes separating (42) an olefins-containing Fischer-Tropsch condensate (64) into a light fraction (68), an intermediate fraction (82) and a heavy fraction (94), oligomerising (44) at least a portion of the light fraction (68) to produce a first olefinic product (72) which includes branched internal olefins, and carrying out either one or both of the steps of (i) dehydrogenating (50) at least a portion of the intermediate fraction (82) to produce an intermediate product (84) which includes internal olefins and alpha-olefins, and synthesising (52) higher olefins from the intermediate product which includes internal olefins and alpha-olefins to produce a second olefinic product (86), and (ii) dimerising (52) at least a portion of the intermediate fraction to produce a second olefinic product (86). At least a portion of the heavy fraction (94) is dehydrogenated (58) to produce a third olefinic product (96) which includes internal olefins. Also provided is a process (30) to produce paraffinic products suitable for use as or conversion to oilfield hydrocarbons which includes separating (110) a Fischer-Tropsch wax (124) into at least a lighter fraction (126, 128) and a heavier fraction (130), hydrocracking (120) the heavier fraction (130) to provide a cracked intermediate (144), and separating (122) the cracked intermediate (144) into at least a naphtha fraction (148), a heavier than naphtha paraffinic distillate fraction (150) suitable for use as or conversion to oilfield hydrocarbons, and a bottoms fraction (152) which is heavier than the paraffinic distillate fraction (150).
Inventors:
DE WET EWALD WATERMEYER (ZA)
Application Number:
PCT/ZA2015/050002
Publication Date:
October 06, 2016
Filing Date:
July 22, 2015
Export Citation:
Assignee:
SASOL TECH PTY LTD (ZA)
International Classes:
C10G57/02; C10G47/00; C10G65/00; C10G65/12; C10G65/14
Domestic Patent References:
| WO2006067174A1 | 2006-06-29 | |||
| WO2000020535A1 | 2000-04-13 | |||
| WO2001046340A1 | 2001-06-28 |
Foreign References:
| EP1449906A1 | 2004-08-25 | |||
| US5965783A | 1999-10-12 | |||
| US20010004972A1 | 2001-06-28 | |||
| GB2158090A | 1985-11-06 | |||
| EP0321305A2 | 1989-06-21 | |||
| US20110180455A1 | 2011-07-28 | |||
| US20050205462A1 | 2005-09-22 | |||
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| US20110024328A1 | 2011-02-03 |
Attorney, Agent or Firm:
VAN DER WALT, Louis, Stephanus (PO Box 1014, 0001 Pretoria, ZA)
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