Catalytic gasification fundamentals

Conference · Wed Jan 01 00:00:00 EST 1992

OSTI ID:6931696

Heinemann, H; Somorjai, G A

Last year it was found that Maya coke gasification could be greatly accelerated if the colting took place in the presence of small amounts (below 1%) of caustic. When the Maya coke thus prepared was impregnated with 1% of CaO-KO[sub x] catalyst, the rate of gasification was doubled. During the past year, this phenomenon has been further investigated and the work has been extended to two other and very different cokes. As shown in Figure 2, a Statfjord Bottoms coke prepared in the presence of 1% NaOH and then impregnated with CaO[sub x]-KO[sub x] catalyst gasified very much faster than the same material coked in the absence of NaOH. The same phenomenon is exhibited in Figure 3 for a Torrance Hondo coke, although in this case the difference between the cokes prepared in the presence and absence of NaOH is somewhat smaller. It is concluded that the preparation method of the coke is of major importance for the rate of gasification and that the phenomenon that presence of alkali during coking is helpful is a generic one.

• Research Organization: Lawrence Berkeley Lab., CA (United States)
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6931696
• Report Number(s): DOE/SF/00098-93/C0114; CONF-920951-33; ON: DE93002609
• Resource Relation: Conference: US Department of Energy contractors review meeting on gasification and gas stream cleanup systems, Morgantown, WV (United States), 15-17 Sep 1992
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL GASIFICATION
CATALYSTS
COKE
GASIFICATION
POTASSIUM OXIDES
CATALYTIC EFFECTS
SODIUM OXIDES
CHARS
GRAPHITE
PETROLEUM PRODUCTS
SODIUM HYDROXIDES
ALKALI METAL COMPOUNDS
CARBON
CHALCOGENIDES
ELEMENTAL MINERALS
ELEMENTS
HYDROGEN COMPOUNDS
HYDROXIDES
MINERALS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
POTASSIUM COMPOUNDS
PYROLYSIS PRODUCTS
SODIUM COMPOUNDS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification