TITLE: Fischer-Tropsch Wax Characterization and Upgrading: Final Report.

AUTHOR: P. P. Shah; G. C. Sturtevant; J. H. Gregor; M. J. Humbach; F. G. Padrta.

INST.  AUTHOR: UOP, Inc., Des Plaines, IL.

SPONSOR: Allied-Signal, Inc., Des Plaines, IL. Engineered Materials Research Center.*Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  6 Jun 88,  325p.

NTIS ORDER NO.: DE88014638/INW

ABSTRACT:

The characterization and upgrading of Fischer-Tropsch wax was studied. The focus of the program was to maximize the yield of marketable transportation fuels from the Fischer-Tropsch process. The wax was characterized using gel permeation chromatography (GPC), high resolution mass spectrometry (HRMS), infrared spectroscopy (IR), gas chromatography (GC), nuclear magnetic resonance (NMR) and various other physical analyses. Hydrocracking studies conducted in a pilot plant indicate that Fischer-Tropsch wax is an excellent feedstock. A high yield of excellent quality diesel fuel was produced with satisfactory catalyst performance at relatively mild operating conditions. Correlations for predicting key diesel fuel properties were developed and checked against actual laboratory blend data. The blending study was incorporated into an economic evaluation. Finally, it is possible to take advantage of the high quality of the Fischer-Tropsch derived distillate by blending a lower value light cycle oil (produced from a refinery FCC unit) representing a high aromatic and low cetane number. The blended stream meets diesel pool specifications (up to 60 wt % LCO addition). The value added to this blending stream further enhances the upgrading complex return. 22 refs., 39 figs., 48 tabs. (ERA citation 14:012588)

REPORT  NUMBER: DOE/PC/80017-T1

CONTRACT  NUMBER: AC22-85PC80017