Liquid hydrocarbon fuels from syngas. Seventh quarterly report, September-November 1982

Technical Report · Fri Jan 01 04:00:00 EST 1982

OSTI ID:6693949

The LZ-105-6, a medium pore molecular sieve, similar in structure to ZSM-5, is the most active catalyst we have tested so far for the conversion of propylene. At optimal conditions, it converted 90% of the feed versus 63% found with UCC-104. However, the test carried out in the Berty reactor showed that this catalyst has inferior selectivity to C/sub 5//sup +/ (89%) relative to UCC-104 (96%). The lower C/sub 5//sup +/ yield with LZ-105 follows from the increased conversion of the propylene to saturated C/sub 3/-C/sub 4/ hydrocarbons. A Task 2 catalyst was prepared by the physical mixture of the reference Fischer-Tropsch catalyst used above and the large pore UCC-101. This catalyst, in contrast to the reference catalyst, did not produce the excess C/sub 20//sup +/ products. Here, the hydrocarbons were isomerized and the pour points of all condensed samples were below room temperature. Conditions were adjusted to obtain excellent selectivity to gasoline, 50 wt. %, and total motor fuel, 70 wt. %. The high selectivity was achieved with this catalyst, however, at a relatively low activity level. Importantly, the product distribution of two runs showed signs of a carbon number cut off (shape selective effect). Thus, this experiment demonstrated the efficiency of UCC-101 as SSC component in that it isomerized the hydrocarbons formed on the MC resulting in substantial improvement of the motor fuel products, and it also seemed to show a cut-off at the end of the motor fuel boiling range (C/sub 20/).

• Research Organization: Union Carbide Corp., Tarrytown, NY (USA). Tarrytown Technical Center
• DOE Contract Number: AC22-81PC40077
• OSTI ID: 6693949
• Report Number(s): DOE/PC/40077-T3; ON: DE84015958
• Country of Publication: United States
• Language: English

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10 SYNTHETIC FUELS
ADSORBENTS
ALKENES
CATALYSTS
CATALYTIC EFFECTS
CHEMICAL PREPARATION
CHEMICAL REACTIONS
DATA
EXPERIMENTAL DATA
FISCHER-TROPSCH SYNTHESIS
FUELS
GASOLINE
HYDROCARBONS
INFORMATION
LIQUID FUELS
MOLECULAR SIEVES
NUMERICAL DATA
ORGANIC COMPOUNDS
PERFORMANCE TESTING
PETROLEUM PRODUCTS
PRODUCTION
PROPYLENE
SPECIFICITY
SYNTHESIS
TESTING