Development of biological coal gasification (MicGas process): 13th Quarterly report, [July 1--September 30, 1993]
In examining methods for enhancing the biomethanation of TxL, several experiments were conducted to study the mechanisms of lowering the pH during biomethanation of Texas lignite (TxL) at higher solids loadings. Results indicated that: Treatment of TxL with different pH solutions did not influence the biomethanation process; The decrease in methane production at higher solids loadings still needs further investigations; Anaerobic conditions containing deoxygenated nitrogen:carbon dioxide provide better methanation of TxL; The most promising combination between the isolates from Mic-1 and Mic-4 was found to be combination D (KS14RMK8-1458); The KS14RMK8 shows the highest accumulation of acetate in the cell-free culture broth from this consortium.
- Research Organization:
- ARCTECH, Inc., Chantilly, VA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC21-90MC27226
- OSTI ID:
- 10117570
- Report Number(s):
- DOE/MC/27226--3594; ON: DE94005792
- Country of Publication:
- United States
- Language:
- English
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