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The art of drying liquid feeds, pastes and solids - Solutions at hand

IP.com Disclosure Number: IPCOM000222454D
Publication Date: 2012-Oct-09
Document File: 129 page(s) / 8M

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Page 01 of 129

GEA PROCESS ENGINEERING A/S

The art of drying liquid feeds, pastes and solids

Solutions at hand

Nordstrom Dyvelkov, Karin

August 31, 2012

This document describes a row of technologies for preparing feeds, for atomization/droplet generation, for drying liquid feeds, pastes and solids, for post-treatment and handling of the final dry product. The technologies described in this document may be used and combined in all possible ways for all products within dairy, food, chemical, agro-chemical, energy, biotechnology, pharmaceutical, healthcare and many more, and are not limited in application to the examples given but are wide open for all such prod- ucts.

© GEA Process Engineering A/S


Page 02 of 129

Table of Contents

1 Introduction ...................................................................................................................................... 4

2 Feed preparation and pretreatment.................................................................................................. 5


2.1 Mix-processing.......................................................................................................................... 5


2.2 Homogenization ........................................................................................................................ 5


2.3 Pasteurization ........................................................................................................................... 6


2.4 Extraction.................................................................................................................................. 8


2.4.1 Continuous extraction ........................................................................................................ 8


2.4.2 Batch wise extraction ....................................................................................................... 10


2.4.3 Other extraction techniques and processes ..................................................................... 12


2.5 Aroma distillation .................................................................................................................... 12


2.6 Concentration ......................................................................................................................... 14


2.6.1 Evaporation ..................................................................................................................... 14


2.6.2 Membrane filtration/concentration .................................................................................... 17


2.6.3 Freeze concentration ....................................................................................................... 17


2.7 Precrystallization..................................................................................................................... 18


2.8 Preheating .............................................................................................................................. 19


2.9 Filtration/sieving ......