Process to produce synthetic fuels and lubricants

a technology of synthetic fuels and lubricants, applied in the direction of hydrocarbon oil cracking process, hydrocarbon oil treatment products, effluent separation, etc., can solve the problems of increasing the overall capital efficiency of the facility, reducing the yield of high-value liquid products, and overall lower capital investment. , to achieve the effect of maximizing the yield of high-quality lubricant base oil, minimizing equipment costs, and reducing capital investmen

Inactive Publication Date: 2005-08-25
REG SYNTHETIC FUELS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0014] The process of the invention which incorporates an initial low severity hydrocracking followed by high severity hydrocracking of only the heavy unconverted waxy recycle stream provides a simplified process for base oil production from waxy feed that maximizes yield of high quality lubricant base oil while minimizing equipment costs. Compared to conventional wax hydroconversion processes for fuels and lubricants production, this process scheme results in overall lower capital investment and higher yield of high value liquid products, increasing the overall capital efficiency of the facility.

Problems solved by technology

Compared to conventional wax hydroconversion processes for fuels and lubricants production, this process scheme results in overall lower capital investment and higher yield of high value liquid products, increasing the overall capital efficiency of the facility.

Method used

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  • Process to produce synthetic fuels and lubricants
  • Process to produce synthetic fuels and lubricants

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Embodiment Construction

[0017] The process of the invention utilizes a low severity hydrocracker to initially process waxy feeds heavier than distillate fuels into distillate fuels of lower cloud and / or freeze point as well as a heavy isoparaffinic stream which is suitable for dewaxing, either catalytically or by solvent extraction, to low pour point isoparaffinic base oils of exceptionally high viscosity index and low volatility.

[0018] The feedstocks which can be employed in the process of the invention may be generally characterized as broad boiling range feeds of petroleum origin, including for example, heavy gas oil having about 50 wt % components with a boiling point above 700° F. or a vacuum gas oil having a boiling point range from between about 600° F. and about 1050° F. Alternatively, the feedstock may be of synthetic origin, such as all or part of the product of a Fischer-Tropsch synthesis.

[0019] In one embodiment of the invention, the process for upgrading the feedstock is integrated with a Fi...

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Abstract

A process utilizing a low severity hydrocracker prior to a high severity hydrocracker for the processing of petroleum based and synthetic hydrocarbon feedstocks into distillate fuels and high quality lubricant base oils. The process minimizes the size and conditions required by the high severity hydrocracker by closely matching such configuration with the desired product slate.

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims priority to U.S. Provisional Application No. 60 / 536,960, filed on Jan. 16, 2004.FEDERALLY SPONSORED RESEARCH [0002] Not applicable. REFERENCE TO MICROFICHE APPENDIX [0003] Not applicable. FIELD OF THE INVENTION [0004] The invention relates to a method for producing distillate fuels and lubricants in a single facility. The invention further relates to an integrated facility for practicing the method of the invention. BACKGROUND OF THE INVENTION [0005] As the World's crude oil supply decreases, refiners must use poorer quality crude oils to produce high quality lubricant base oils. High quality lubricant base oils are those which have a high viscosity index (“VI”), i.e. VI>135, low volatility, and low pour points. Because of the presence of relatively high levels of aromatic compounds, severe hydroprocessing conditions are required to convert poorer quality crude oils into high quality lubricating oils. Less sev...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10G7/00C10G47/00C10G65/00C10G65/12
CPCC10G65/00C10G2400/10C10G65/12
Inventor FREERKS, ROBERT L.HAVLIK, PETER Z.JANNASCH, NATHAN
Owner REG SYNTHETIC FUELS LLC
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