TITLE: Fischer-Tropsch Slurry Phase Process Variations to Understand Wax Formation: Quarterly Report for Period July 1, 1988 to September 30, 1988.

AUTHOR: T. Donnelly;   C. N. Satterfield.

INST.  AUTHOR: Massachusetts Inst. of Tech., Cambridge.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1988,  44p.

NTIS ORDER NO.: DE89003247/INW

ABSTRACT:

A precipitated iron catalyst without any alkali promoters was studied for 2000 hours on stream in a slurry reactor. Reaction conditions were 230 to 260/degree/C (mostly 260/degree/C), 0.77 to 1.92 MPa, H2 /CO feed ratios of 0.5 to 2.0 and CO + H2 conversions of 10% to 65%. A Schulz-Flory carbon number distribution with two chain growth probabilities was required to describe the product. Effects of operating variables on 1-butene/n-butane ratio, methane and oxygenate selectivities, and alpha sub 1 and alpha (sup 2) are reported. Kinetic models for secondary reactions of 1-alkenes were developed. Addition of potassium t-butoxide to the reactor substantially shifted both distributions to heavier products. 19 refs., 17 figs., 4 tabs. (ERA citation 14:007538)

REPORT  NUMBER: DOE/PC/80015-12

CONTRACT  NUMBER: AC22-85PC80015