Chemistry and catalysis of coal liquefaction; catalytic and thermal upgrading of coal liquids; and hydrogenation of CO to produce fuels. Volume IX. Final report. [C/sub 2/-C/sub 4/ alkenes]
The hydrogenation of carbon monoxide to produce low-molecular-weight olefins (C/sub 2/-C/sub 4/) has been investigated over unsupported iron-manganese catalysts. It was found that a catalyst with approximately 2 parts of manganese per 100 parts of iron was effective in modifying the activity and selectivity of unsupported iron catalysts for the production of C/sub 2/-C/sub 4/ olefinic hydrocarbons. The initial objective of this study was to investigate the influence of the catalyst loading and reactor operating modes on the activity and selectivity of iron-manganese catalysts for carbon monoxide hydrogenation. The following modes were studied: (1) conventional dense-bed reactor, (2) dense bed trickle flow reactor, (3) dense bed pseudo slurry reactor, (4) diluted bed reactor, (5) diluted bed trickle flow reactor, and (6) diluted bed pseudo slurry reactor. The standard operating conditions were as follows: reactor temperature 593K (220/sup 0/C), reactor inlet pressure 2.76 MPa (440 psig), reactant gas space velocity 1.0 cm/sup 3/g/sup -1/s/sup -1/ and a H/sub 2//CO ratio of 2. Mobil Number 1 base stock MCP-151 without additives and n-hexadecane were used as heat transfer media in the trickle flow and pseudo slurry reactor operations. A complete process variable investigation was conducted in the diluted bed reactor and in the diluted bed pseudo slurry reactor using n-hexadecane as the heat transfer liquid. The process variables investigated were reaction temperature, reactor pressure, H/sub 2//CO ratio and reactant gas space velocity. 98 refs., 77 figs., 9 tabs.
- Research Organization:
- Utah Univ., Salt Lake City (USA). Dept. of Fuels Engineering
- DOE Contract Number:
- AC22-79ET14700
- OSTI ID:
- 5284170
- Report Number(s):
- DOE/ET/14700-T1-Vol.9; ON: DE85014174
- Country of Publication:
- United States
- Language:
- English
Similar Records
Synthesis of low molecular weight olefins over coprecipitated iron-manganese catalysts. Volume VIII. Final report. [C/sub 2/-C/sub 4/ olefins]
Chemistry and catalysis of coal liquefaction; catalytic and thermal upgrading of coal liquids; and hydrogenation of CO to produce fuels. Volume VII. Final report. [C/sub 2/-C/sub 4/ olefins]
Related Subjects
010404 -- Coal
Lignite
& Peat-- Gasification
090121* -- Hydrocarbon Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALKANES
ALKENES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYSTS
CATALYTIC EFFECTS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
DATA
ELEMENTS
EXPERIMENTAL DATA
FISCHER-TROPSCH SYNTHESIS
HEXADECANE
HIGH TEMPERATURE
HYDROCARBONS
HYDROGENATION
INFORMATION
IRON
MANGANESE
MEDIUM PRESSURE
METALS
METHANATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SYNTHESIS
TRANSITION ELEMENTS