TITLE: NMR study of the influence of adsorbed sulfur on hydrogen chemisorption on supported ruthenium catalysts.

AUTHOR: S. Bhatia.

INST.  AUTHOR: Iowa State Univ., Ames.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Thesis

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  1989,  81p.

NTIS ORDER NO.: DE90014418INW

ABSTRACT:

Catalyst poisoning induced by sulfur is one of the most severe problems associated with the commercial use of metal catalysts. It is a major problem in applications such as methanation of coal synthesis gas or reforming of naphthas. Sulfur atoms bond so strongly to metal surfaces that marked activity reduction occurs at low gas-phase concentrations of sulfur containing compounds. The purpose of this study was to determine the effects of adsorbed sulfur on the adsorption of hydrogen on ruthenium, a highly active catalyst for many reactions including the Fischer Tropsch synthesis reaction. Sulfur is a common impurity for methanation and Fischer Tropsch synthesis catalysts and the effects of the sulfur are complex.

REPORT  NUMBER: IS-T-1475

CONTRACT  NUMBER: W-7405-ENG-82