ISSN:
0006-3592
Schlagwort(e):
Chemistry
;
Biochemistry and Biotechnology
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Biologie
,
Werkstoffwissenschaften, Fertigungsverfahren, Fertigung
Notizen:
To be economically feasible, bacterial coal desulfurization must be done at a high rate in concentrated coal slurries. The rate may be restricted by gas transfer limitation (O2 or CO2), inhibition of the Thiobacilli, or ceil death by mechanical abrasion. Experiments designed to differentiate between these limitations show that CO2 transport is limiting in shake flasks for slurries of more than 20% (wt/wt) of a coal containing 1% pyritic sulfur. Air sparging removed this limitation in slurries of up to 50%, leaving inhibition as the main limitation. Heterotrophic bacteria that establish themselves in a recycled cell culture increase process rates not only by removing organic inhibitors but also by increasing the O2-CO2 ration required by the biomass to the value that is supplied naturally from air.
Zusätzliches Material:
4 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/bit.260320613
Permalink
