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US 6,093,326 AGranted
Method for the fractionation of molasses
AssigneeDanisco Finland Oy
InventorsHeikki Heikkila, Goran Hyoky, Jarmo Kuisma
Life of this patent
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Abstract
The invention relates to a method for the fractionation of molasses using a chromatographic simulated moving bed system in which the liquid flow is effected in a single direction in a system comprising at least two chromatographic partial packing material beds. In the method of the invention, the product or products are recovered during a multi-step sequence comprising the following phases: feeding phase of molasses, eluting phase and recycling phase. The liquid present in the partial packing material beds with their dry solids profile is recycled in the recycling phase in a loop comprising one, two or several partial packing material beds.
Claims45
A method for the fractionation of molasses selected from the group consisting of beet molasses, cane molasses, stillage, vinasse wood molasses, wheat molasses, barley molasses, corn molasses, and solutions derived from any of the preceding, comprising the steps of:
- recovering at least one product during a multi-step sequence in two or more loops, each loop being different than the other loop, and each loop comprising one or more chromatographic beds, columns, or parts thereof separate and distinct from the other loop, said loops comprising at least a first loop and a second loop;
- a step comprising at least one of the following phases, a feeding phase, an eluting phase and a recycling phase, wherein liquid present in each loop comprises a separate defined dry solids profile, and said dry solids profile is recycled in the recycling phase of the loop;
- said method further comprising
- feeding a feed solution comprising said molasses into said first loop, fractionating said feed solution comprising said molasses in said first loop into at least two fractions by a chromatographic simulated moving bed process;
- feeding a liquid comprising at least one of said two fractions from said first loop into said second loop, and fractionating said fraction from said first loop in said second loop by chromatographic fractionation into at least two other fractions;
- and wherein
- at least one of said fractions comprises a product fraction said product fraction comprising a greater percentage concentration by weight on a dry solids basis of said product than said molasses, and said product fraction comprising a greater percentage concentration by weight on a dry substance basis of said product than said other fractions in said loops.
4 more elements
A method for separating sucrose and betaine from a liquid derived from molasses in a chromatographic system, comprising the steps of:
- establishing a flow of liquid derived from molasses and eluent through a chromatographic system in a multi-step sequence, each step including at least one phase selected from the group consisting of a feeding phase, an eluting phase and a recycling phase;
- operating at least two recycling loops within the multi-step sequence so that the liquid present in the recycling loops forms a separate dry solids profile;
- and, recovering sucrose and betaine during the multi-step sequence;
- said loops including at least a first loop and a second loop, said first loop being connected in series to said second loop, said first loop being different than said second loop, and each of said loops comprising a different series of chromatographic beds, columns, or parts thereof;
- said method including
- chromatographically processing a feed comprising said liquid derived from molasses in said first loop by fractionating said feed in said first loop into at least two fractions by a chromatographic simulated moving bed process;
- chromatographically processing at least one of said two fractions from said first loop in said second loop by fractionating a stream comprising said fraction from said first loop in said second loop into at least two other fractions by chromatographic fractionation;
- one of said fractions comprising a betaine fraction, said betaine fraction comprising a greater percentage concentration by weight on a dry solids basis of said betaine than said feed, and said betaine fraction comprising a greater concentration by weight of betaine than said other fractions in said loops;
- and
- one of said fractions comprising a sucrose fraction, said sucrose fraction comprising a greater percentage concentration by weight on a dry solids basis of said sucrose than said liquid, and said sucrose fraction comprising a greater percentage concentration by weight of sucrose than said other fractions in said loops.
7 more elements
A method for processing a feed solution derived from beet molasses, comprising the steps of:
- chromatographically fractionating a feed solution comprising diluted beet molasses in a first loop into at least two fractions in a multi-step sequence comprising a feeding phase in said first loop, an eluent water phase in said first loop, a recycling phase in said first loop, and a recovery phase of fractions in said first loop;
- chromatographically fractionating at least one of said fractions from said first loop in a second loop into at least two other fractions in a multi-step sequence comprising a feeding phase wherein a stream derived from one of said fractions from said first loop is fed into said second loop, an eluent water phase in said second loop, a recycling phase in said second loop, and a recovery phase of fractions in said second loop;
- one of said fractions comprising a betaine fraction, said betaine fraction comprising a greater percentage concentration by weight on a dry solids basis of said betaine than said feed solution, said betaine fraction comprising a greater concentration by weight on a dry solids basis of said betaine than said stream fed into said second loop, and said betaine fraction comprising a greater concentration by weight of betaine than said other fractions in said loops;
- one of said fractions comprising a sucrose fraction, said sucrose fraction comprising a greater percentage concentration by weight on a dry solids basis of said sucrose than said feed solution, said sucrose fraction comprising a greater concentration by weight on a dry solids basis of sucrose than said stream fed into said second loop, and said sucrose fraction comprising a greater concentration by weight on a dry solids basis of sucrose than other fractions in said loops;
- each loop comprising a series of columns, beds, or parts thereof, said second loop having at least one column, bed, or part thereof, separate and apart from said first loop;
- said first and second loops being connected in series to each other, and said first loop being different than said second loop;
- and
- each loop having a different dry solids profile.
5 more elements
Dependencies are inferred from the claim text.