An exploratory program for using hydrous metal oxide ion exchangers as Fischer-Tropsch catalysts
The purpose of this program is to investigate the potential of hydrous metal oxide (HMO) ion exchangers, invented at Sandia National Laboratories, as Fischer-Tropsch (F-T) catalysts. Metals known to be active in F-T synthesis (e.g. Fe, Co) were ion exchanged on hydrous metal oxide supports. Although HMO catalysts based on Zr, Nb, and Ta have been investigated in direct coal liquefaction studies, this effect focused on formulations based on the hydrous titanium oxide (HTO) system. The program has the goals of developing a catalyst with (1) high activity, (2) selectively to fuel range or other useful products, and (3) better properties for use in slurry reactors. The program has three main tasks: (1) catalyst synthesis, to develop methods for preparing catalysts having desirable F-T properties, (2) characterization, to investigate catalysts proving to have desirable properties by a variety of analytical techniques to determine correlations between activity and material properties and (3) testing to determine activity and selectivity of catalysts. This paper discussed results of activity testing of Ruhrchemie catalyst and some catalyst formulations prepared using ion exchange on hydrous titanium oxide and precipitation. For example, at 250{degree}C the Ruhrchemie catalyst converts {approximately}50% of the syngas feed to reaction products. In comparison, iron catalysts prepared by ion exchange and precipitation had conversions ranging from 20 to 50% over a temperature range of 250 to 275{degree}C of the syngas feed. In addition, results are Auger surface analysis of Ruhrchemie catalyst are presented. 6 refs., 2 figs., 2 tabs.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6540194
- Report Number(s):
- SAND-90-2553C; CONF-901120-1; ON: DE91002341
- Resource Relation:
- Conference: Indirect liquefaction contractors review, Pittsburgh, PA (USA), 5-8 Nov 1990
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
COBALT
CATALYTIC EFFECTS
IRON
TITANIUM OXIDES
CATALYST SUPPORTS
CATALYSTS
CHEMICAL PROPERTIES
COMPARATIVE EVALUATIONS
COPPER
FISCHER-TROPSCH SYNTHESIS
ION EXCHANGE MATERIALS
POTASSIUM
PROMOTERS
SURFACE AREA
ALKALI METALS
CHALCOGENIDES
CHEMICAL REACTIONS
ELEMENTS
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
SURFACE PROPERTIES
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
010408* - Coal
Lignite
& Peat- C1 Processes- (1987-)
400201 - Chemical & Physicochemical Properties