Chemistry: molecular biology and microbiology – Micro-organism – tissue cell culture or enzyme using process... – Preparing oxygen-containing organic compound
Patent
1995-02-03
1996-08-13
Naff, David M.
Chemistry: molecular biology and microbiology
Micro-organism, tissue cell culture or enzyme using process...
Preparing oxygen-containing organic compound
435 93, 435161, 435163, C12C 100, C12P 706, C12P 714, C12P 708
Patent
active
055455433
ABSTRACT:
Ethanol is continuously produced by cooking and acidifying milled cereal to produce a slurry of acidified and liquified product containing non-fermentable dextrins, screening the slurry with a stationary screen at approximately 70.degree.-85.degree. C. to obtain an overscreen phase and a filtered limpid phase, vacuum filtering and mechanically squeezing the overscreen phase to obtain a filtration panel and a turbid filtrate, mixing the turbid filtrate with the slurry of liquefied and acidified product to obtain a mixed slurry having a temperature of approximately 70.degree.-85.degree. C., returning the mixed slurry to the stationary screen, saccharifying and fermenting the limpid phase with yeast to produce ethanol, centrifuging to separate yeast, acidifying and returning the yeast for fermenting and recovering ethanol by distillation. The filtration panel from vacuum filtering and mechanically squeezing may be mechanically squeezed to obtain a second turbid filtrate and a dehydration panel. The second turbid filtrate is also mixed with the slurry of liquified and acidified product. Prior to screening, the slurry of acidified and liquified product can be treated with an enzyme.
REFERENCES:
patent: 4287303 (1981-09-01), Dahlberg
patent: 4361651 (1982-11-01), Keim
patent: 4425433 (1984-01-01), Neves
patent: 4460687 (1984-07-01), Ehnstrom
patent: 4810647 (1989-03-01), Monceaux
Berruti Massimo
Zinnamosca Francesco
Naff David M.
Technipetrol S.p.A.
Vigil Thomas R.
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