Apparatus and process for stabilizing a liquid, in particular beer
AssigneeKHS GmbH
InventorsUlrich Sander, Andreas Zeller
Life of this patent
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Abstract
An apparatus for stabilizing liquid includes first and second filters, intermediate storage that stores a regenerable stabilizing agent, an inlet line supplying unstabilized liquid and connected to both filters and to the intermediate storage, and a switchable interconnection configured for, immediately after regeneration and cleaning of the first or second filter, selectively causing the one of the first filter unit and the second filter unit to be upstream of an other of the first filter unit and the second filter unit. The first filter unit and the second filter unit are configured to run in different operational phases that are offset in time from one another.
Claims19
A method comprising adding polyvinylpolypyrrolidone to beer, supplying said beer, to which said polyvinylpolypyrrolidone has been added, to one of a first filter unit and a second filter unit to remove said polyvinylpolypyrrolidone from said beer, operating said first and second filter units in different operation phases that are offset in time from one another, and supplying said beer, to which said polyvinylpolypyrrolidone has been added, to each filter unit immediately after a regeneration-and-cleaning phase thereof, wherein said different operation phases are selected from the group consisting of a pre-coating phase, a stabilization phase, and a regeneration-and-cleaning phase.
A process comprising connecting an output of a first filter to an input of a second filter, feeding, into an input to said first filter, beer to which polyvinylpolypyrrolidone has been added, concurrently operating said first and second filters in different operation phases, receiving, from an output of said second filter, beer from which polyvinylpolypyrrolidone has been removed, connecting said output of said second filter to said input of said first filter, feeding, into said input of said second filter, beer to which polyvinylpolypyrrolidone has been added, concurrently operating said second and first filters in different operation phases, and receiving, from said output of said first filter, beer from which polyvinylpolypyrrolidone has been removed.
A process comprising adding polyvinylpolypyrrolidone to beer, connecting a first filter and a second filter in series, wherein connecting said first filter and said second filter in series comprises connecting said first filter upstream of said second filter, feeding said beer, to which polyvinylpolypyrrolidone has been added, into an input of said first filter, operating said first filter in a first operation phase, concurrently with operating said first filter in said first operation phase, operating said second filter in a second operation phase, wherein said second operation phase is an operation phase that is different from said first operation phase, receiving, from an output of said second filter, beer from which said polyvinylpolypyrrolidone has been filtered by said second filter, cleaning and regenerating said second filter, immediately after having cleaned and regenerated said second filter, connecting said first filter and said second filter in series with said first filter now being downstream of said second filter instead of being upstream of said second filter, operating said second and first filters in different operation phases simultaneously, and receiving, from an output of said first filter, beer from which said polyvinylpolypyrrolidone has been filtered by said first filter, wherein said operation phases are selected from the group consisting of a pre-coating phase, a stabilization phase, and a regeneration-and-cleaning phase.
Dependencies are inferred from the claim text.