Auger and reaction studies of poisoning by sulfur and regeneration of metal synthesis gas catalysts. Progress report, April 1, 1975--December 15, 1975

Technical Report · Mon Dec 01 04:00:00 EST 1975

DOI:https://doi.org/10.2172/7281759· OSTI ID:7281759

Katzer, J R

The objective is to determine the rate and mechanism of (1) sulfur poisoning and (2) of regeneration of metal catalysts used in synthesis gas conversion to hydrocarbon products. Auger electron spectroscopy (AES) is used for surface analysis, and in-situ reaction studies of deactivation and regeneration are combined with microreactor studies to quantify sulfur poisoning. An all-glass internal recirculation microreactor has been designed, fabricated, debugged and integrated into a metal-free feed gas and G. C. analysis system for kinetic studies of sulfur deactivation in CO hydrogenation. An UHV antechamber has been designed, built and connected with the Auger electron spectrometer to allow sample treatment at high temperature and pressure with subsequent AES analysis without atmospheric contamination. A gas-dosing, molecular-leak system has been installed on the AES vacuum chamber to allow in-situ sample treatment to bridge the high-pressure low-pressure gap. A mass spectrometer has been added to the system, and a computer is being interfaced with the spectrometer for improved data treatment and analysis at nano-ampere beam currents. The procedures for film preparation and cleaning have been developed; films are being used in all parts of the work.

• Research Organization: Delaware Univ., Newark (USA). Dept. of Chemical Engineering
• OSTI ID: 7281759
• Report Number(s): COO-2579-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010500* -- Coal
Lignite
& Peat-- Products & By-Products
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
AUGER ELECTRON SPECTROSCOPY
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
CHROMATOGRAPHY
ELECTRON SPECTROSCOPY
ELEMENTS
FLUIDS
GAS CHROMATOGRAPHY
GASES
HYDROGENATION
KINETICS
MASS SPECTROMETERS
MEASURING INSTRUMENTS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
POISONING
REACTION KINETICS
REGENERATION
RESEARCH PROGRAMS
SEPARATION PROCESSES
SPECTROMETERS
SPECTROSCOPY
SULFUR
SYNTHESIS GAS