Hydrocarbon compound distillation separation apparatus

Patent metadata

Field	Value
Publication number	US-9920256-B2
Application number	US-201514615705-A
Country	US
Kind code	B2
Filing date	Feb 6, 2015
Priority date	Feb 27, 2009
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

There is provided a hydrocarbon distillation separation apparatus for fractionally distilling hydrocarbon compounds discharged from a Fisher-Tropsch synthesis reactor synthesizing hydrocarbon compounds, comprising a heavy hydrocarbon fractionator configured to fractionally distil liquid heavy components of the hydrocarbon compounds discharged from the reactor into a first middle distillate and a wax fraction, a light hydrocarbon fractionator configured to fractionally distil gaseous light components of the hydrocarbon compounds discharged from the reactor into a second middle distillate and a light gas fraction, a light hydrocarbon separator configured to separate hydrocarbon compounds equivalent to naphtha from the light gas fraction; and a mixing section configured to mix the first and second middle distillates, and the hydrocarbon compounds equivalent to naphtha separated from the light gas fraction by the light hydrocarbon separator.

First claim

The invention claimed is:

1. A hydrocarbon distillation separation apparatus for fractionally distilling hydrocarbon compounds discharged from a synthesis reactor, the apparatus comprising:
the synthesis reactor configured to synthesize hydrocarbon compounds using a Fisher-Tropsch synthesis reactions;
a heavy hydrocarbon fractionator communicating with a middle part of a body of the synthesis reactor and configured to fractionally distil liquid heavy hydrocarbon compounds of the hydrocarbon compounds discharged from the synthesis reactor into a first middle distillate and a wax fraction;
a first line connecting the middle part of the body of the synthesis reactor with the heavy hydrocarbon fractionator and configured such that the liquid heavy hydrocarbon compounds are supplied from the synthesis reactor to the heavy hydrocarbon fractionator there through;
a first middle distillate discharge line connected to a middle part of a body of the heavy hydrocarbon fractionator and configured such that the first middle distillate is discharged from the heavy hydrocarbon fractionator there through;
a light hydrocarbon fractionator communicating with a top of the body of the synthesis reactor and configured to fractionally distil gaseous light hydrocarbon compounds of the hydrocarbon compounds discharged from the synthesis reactor into a second middle distillate and a light gas fraction;
a second line connecting the top of the body of the synthesis reactor with the light hydrocarbon fractionator and configured such that the gaseous light hydrocarbon compounds are supplied from the synthesis reactor to the light hydrocarbon fractionator there through;
a second middle distillate discharge line connected to a bottom part of a body of the light hydrocarbon fractionator and configured such that the second middle distillate is discharged from the light hydrocarbon fractionator there through;
a light gas fraction discharge line connected to a top of the body of the light hydrocarbon fractionator and configured such that the light gas fraction is discharged from the light hydrocarbon fractionator there through;
a light hydrocarbon separator provided to the light gas fraction discharge line and configured to separate hydrocarbon compounds equivalent to naphtha from the light gas fraction discharged from the light hydrocarbon fractionator;
a mixing section connected with the first and second middle distillate discharge lines and the light gas fraction discharge line, located downstream of both the heavy hydrocarbon fractionator and the light hydrocarbon fractionator, and configured to mix the first middle distillate discharged from the heavy hydrocarbon fractionator, the second middle distillate discharged from the light hydrocarbon fractionator, and the hydrocarbon compounds equivalent to naphtha separated from the light gas fraction by the light hydrocarbon separator, and to obtain a mixture of them, and
a hydrotreating reactor connected with the mixing section and configured to hydrotreat the mixture supplied from the mixing section.

2. The hydrocarbon distillation separation apparatus according to claim 1 , further comprising a reflux line installed between the light hydrocarbon separator and the light hydrocarbon fractionator and through which a part of the hydrocarbon compounds equivalent to naphtha is refluxed therebetween.

Assignees

• Japan Oil Gas & Metals Jogmec
• Inpex Corp
• Jx Nippon Oil & Energy Corp
• Japan Petroleum Exploration Co Ltd
• Cosmo Oil Co Ltd
• Nippon Steel & Sumikin Eng Co
• Nippon Steel Eng Co Ltd

Inventors

• Tanaka Yuichi
• Morita Yasumasa
• Kawazuishi Kenichi

Classifications

• C10G2400/08

  Jet fuel · CPC title

• C10G2400/06

  Gasoil · CPC title

• C10G2400/02

  Gasoline · CPC title

• C10G2300/1022

  Fischer-Tropsch products · CPC title

• C10G7/00 Primary

  Distillation of hydrocarbon oils · CPC title