TITLE: Synthesis of higher alcohols from carbon monoxide and hydrogen in a slurry reactor.

AUTHOR: M. S. McCutchen.

INST.  AUTHOR: North Carolina State Univ. at Raleigh.

SPONSOR: Department of Energy, Washington, DC.

LANGUAGE: English

PUB.  TYPE: Thesis

PUB.  COUNTRY: United States

SOURCE: Department of Energy [DE],  28 Aug 92,  113p.

NTIS ORDER NO.: DE93015086INW

ABSTRACT:

Higher, i.e. C(sub 2(sup +)), alcohols are desired as gasoline additives, feedstocks for producing ethers and as alternative fuels for automobiles.  In all cases, the backbone branching of an alcohol improves octane rating, which is essential for good engine performance. These types of branched, higher alcohols are the desired products for a process converting synthesis gas, a CO and H(sub 2) mixture, often generated from coal gasification. Based on this premise, promoted ZnCr oxide catalysts appear to be as one of the best avenues for further investigation. Once this investigation is complete, a natural extension is to replace the Cr in the ZnCr oxide catalyst with Mo and W, both in the same elemental triad with Cr. Mo has already been shown as an active HAS catalyst, both on a SiO(sub 2) support and in the MoS(sub 2) form. The three catalyst combinations, ZnMo, ZnW, and MnCr oxides will be tested in the stirred autoclave system.  However, if none of the three indicate any comparable activity and/or selectivity toward higher alcohols as compared with other HAS catalysts, then an investigation of the effects of Cs promotion on the ZnCr oxide methanol catalysts will be executed.

REPORT  NUMBER: DOE/PC/90043-T9

CONTRACT  NUMBER: AC22-90PC90043