Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1979-11-13
1981-09-01
Penland, R. B.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435163, 435165, C12P 714
Patent
active
042873037
ABSTRACT:
In the production of ethanol in plants, comprising a fermenter, a centrifugal separator for the recirculation of the yeast to the fermenter and a plant for the separation of a yeast-free flow, coming from the centrifugal separator, into one flow, rich in ethanol, and into one residual flow, the substrate, that is fed to the fermenter must be rid of solid substance, like fibres etc. In the separation of such solid substance a certain amount of substrate has been lost according to the methods utilized hitherto, or an unnecessarily high consumption of water and energy has occurred. According to the invention the solid substance, which is separated from the raw material flow, is washed, preferably countercurrently with said residual flow, which in turn, enriched in substrate, is fed to the fermenter. If a distillative method is used for said separation the residual flow is called slop.
REFERENCES:
patent: 385625 (1888-07-01), Horne
patent: 504074 (1893-08-01), Bradley et al.
patent: 963275 (1910-07-01), Chute
Dahlberg Bengt I.
Ehnstrom Lars K. J.
Keim Carroll R.
Alfa-Laval AB
Hapgood Cyrus S.
Penland R. B.
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