TITLE: Upgrading of Fischer-Tropsch Liquids over ZSM-5 Using Model Compounds. Final Report, April 1, 1981-July 15, 1982.

AUTHOR: R. G. Anthony.

INST.  AUTHOR: Texas A and M Univ., College Station.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Technical Report

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  May 82,  153p.

ABSTRACT:

The objective of this research was to gather catalytic and kinetic data on model compounds and Fischer-Tropsch liquid. These data were to be used to categorize the possible behavior exhibited by compounds similar in scope to Fischer-Tropsch liquids. Two separate metal-exchanged ZSM-5 catalysts were used, along with the hydrogen form. Catalytic testing results showed a wide range of product distributions with n-decanal producing the highest liquid and aromatic yield. The n-heptane produced the lowest of both aromatics and liquids. The Fischer-Tropsch liquid fell between these two types. The temperature effect showed the ability to vary the total liquid product of a reactant. The aromatic yield however, stayed somewhat consistent. This same behavior was also exhibited in the Fischer-Tropsch liquid. This ability to vary the yield of general products enables one to choose what products are to be produced without extensive trial and error. The space velocity effect was shown to be of only slight importance in the range studied. This does not mean the space velocity was not of importance at much higher velocities. The effect of water and additional pressure proved to be detrimental to the upgrading of the reactants. Water however, increased the total liquids product, while lowering the aromatic content. But in a large scale operation the energy required to vaporize the water would probably outweigh the economic benefit of the extra liquid production. Other conclusions are given in the report. (ERA citation 08:007088)

REPORT  NUMBER: DOE/PC/41264-T1

CONTRACT  NUMBER: AC22-81PC41264