I&EC 45 |
| The corn components, corn stalk, corn leaf, corn cob, corn stover, and corn stover pellet, were liquefied in a batch pressure vessel equipped with an induction heating system, which allows the reduction of heat-up times by about two orders of magnitude. Various corn components show different densities, but similar compositions, and do not seem to affect the yield and composition of bio-crude oils. The direct conversion of corn stover pre-treated with dilute acid and lignin extracted from corn stover, were also studied to evaluate suitability as the raw material for producing bio-crude oil. Liquefaction process of corn stover was optimized using the following treatment variables: heating rate (5-140°C /min), cooling rate (4-80°C /min), reaction temperature (300-450 °C, corresponding to a pressure range of 3000-5000 PSI), reaction time (1-30 min), particle sizes, and catalysts. The yields of bio-crude oil were found to depend on heating rate, final liquefaction temperature, the length of reaction time. The major compounds from biomass liquefaction were identified by GC-MS. The mechanism of liquefaction reactions was proposed. |
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IEC Poster Session
8:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster
Division of Industrial & Engineering Chemistry |