Trifunctional catalysts for conversion to syngas to alcohols. Fourth quarterly report, June 1-August 31, 1985

Technical Report · Tue Sep 17 04:00:00 EDT 1985

OSTI ID:5246590

Bischoff, K B; Manogue, W; Mills, G A

A number of significant catalysts were prepared and tested for CO hydrogenation at 225 to 275/sup 0/C and 450 to 750 psi in the flow reactor system. Rh-Al/sub 2/O/sub 3/-Na. The dependence of selectivity on conversion level was confirmed and further clarified using catalysts of 0 and 2% Na content. Conversion was generally varied by operating at different space rates. Promotion of activity of Rh-Al/sub 2/O/sub 3/ was observed for addition of ions of titanium or of molybdenum, but not for manganese which decreased activity. Rh-TiO/sub 2/ catalysts were found to be very active and gave relatively high selectivity to oxygenates. The addition of lanthanum increased selectivity further. Silica containing catalysts were prepared and tested. One, using a silicated alumina and containing Mo and Mn in addition to Rh, gave good activity and selectivity. A bimetallic Rh-Pd/silica catalyst did not perform well. Analytical. Using the present GC system, a previously unidentified peak was found to correspond to butane in what appears to be amounts unexpectedly high (much larger than predicted by Anderson- Shultz-Flory equation). This is being further clarified. Run data are now being computerized using Lotus 1,2,3, IBM PC. This should assist in data interpretation. XRD is being used to check metal and support character. In one instance no rhodium metal peak was observed on fresly reduced samples but appeared after extensive catalyst use. Infrared. The FTIR system is now operational and initial spectra are being obtained at elevated temperature and pressure. 2 figs.

• Research Organization: Delaware Univ., Newark (USA). Dept. of Chemical Engineering
• DOE Contract Number: AC22-79ET14880
• OSTI ID: 5246590
• Report Number(s): DOE/ET/14880-T8; ON: DE850180595
• Country of Publication: United States
• Language: English

Related Subjects

090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALCOHOLS
ALKALI METALS
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYST SUPPORTS
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DATA
ELEMENTS
EXPERIMENTAL DATA
HIGH TEMPERATURE
HYDROGENATION
HYDROXY COMPOUNDS
INFORMATION
MANGANESE
MEDIUM PRESSURE
METALS
MINERALS
MOLYBDENUM
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
PLATINUM METALS
PROMOTERS
RESEARCH PROGRAMS
RHODIUM
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SODIUM
SYNTHESIS
TESTING
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS