SPIN Solids Processing Industrial Network Workgroup Drying

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SPIN Solids Processing Industrial
NetworkWorkgroup Drying

• Ir. H.J.M. Slangen (DSM)

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• Contents
• What is SPIN
• Spin workgroup Drying
• Project Fluid Bed Spray Granulation
• Project Selection of Dryers

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SPIN
(Solids Processing Industrial Network)

• A consortium of 14 industrial companies.
• Formed at SUSTECH 7 in October 1996.
• Received financial and administrative backing
  from the European Commission in December 1998.

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Partners in SPIN

• Norsk Hydro Norway
• Novo Nordisk Denmark
• Dow Deutschland Germany
• DuPont UK
• Syngenta UK
• ICI UK
• DSM Research NL
• BAYER Germany
• Siemens - AXIVA Germany
• BASF Germany
• Roche Switzerland
• Rhodia France
• ATOFINA France
• BP Chemicals France

Also Participating Akzo Nobel (NL), Ajax
Equipment (UK), Zeppelin (D) Degussa-Hüls (D),
Sulzer (CH)
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Network Objectives (1)
Primary Objectives

• Identify the current status of solids processing
  technology (state of the art). and the needs of
  the European Chemical Industry in relation to
  solids processing.
• Determine the goals of specific projects which
  will meet the needs of industry where the state
  of the art is lacking in depth.
• Identify the most appropriate specific research
  institutions (Universities or SMEs) to
  collaborate on these specific projects.
• Facilitate the submission of at least 6
  collaborative solids processing RTD actions
  within the EU.

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Network Objectives (2)
Secondary Objectives

• Establish SPIN as the central source of
  information concerning solids processing
  technology in Europe.
• Increase the membership of SPIN so that
  industrial organisations from at least 10 member
  states of the European Union are represented.
• Ensure that the SPIN Network continues to play a
  role as the lead propagator in the development of
  solids technology well beyond the four year
  duration of the Thematic Network implementation
  phase.

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The Working Groups
Geoff Taylor - Zeneca J. Schelling -
Norsk J.Weber - Dow Hub Slangen - DSM H.Feise -
BASF G. Esper - BAyer S.Heffels -
Aventis D.Graham - ICI P.Bach - Novo
Nordisk U.Bröckel - BASF K.Looney - DuPont M.
Battrum - BASF
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Working Group Drying

• Meetings Stade (98), Geleen (99), Maastricht
  (01)
• Questionnaire results published in Drying
  Technology, 18 (2000), 7, 1601-4
• Potential topics
• - Spray drying - Contact drying
• - Selection system - Standard test methods
• - Math. modelling - Fluid bed spray granulation

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Fluid bed spray granulation (1)

• Preproposal made by BASF and DSM
• Participants
• Universities
• Karlsruhe (D), Magdeburg (D), Toulouse (F)
• Equipment manufacturers
• Glatt (D), Heinen (D), Hosokawa (NL)
• Chemical industry
• BASF (D), DOW (D), DSM (NL)

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Fluid bed spray granulation (2)

• Meetings Merseburg (02), Stade (02)
• Goal to make FBSG as simple and cost effective
  as spray drying
• Work packages
• Process understanding (hydrodynamics, seed
  formation, spraying system, classification)
• Modelling (verification, tests for parameters)
• Product properties / measurement and control
• Energy savings
• Reduction of investment and maintenance costs
• Process safety

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Selection of dryers (1)

• Objective to develop a system for the selection
  of a dryer, consisting of the following parts
• A system containing all possible dryer types (gt
  50), their advantages and disadvantages and rules
  to make a selection.
• A program to make the first calculations about
  dimensions, flows, energy consumption etc.
• A data base of equipment manufacturers (more than
  200) and the type, sizes and prices of their
  deliveries.
• A data base of the experience with all kinds of
  chemical products.

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Selection of dryers (2)

• Principles
• The user must make the choice, not the computer.
  The computer must provide the necessary
  information
• Based on a logical classification of dryer types
• Based on practical experience
• Possible participants
• Akzo, DOW, DSM, Roche
• TNO, Hyprotech, Univ. Moscow

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Selection of dryers (3)

• Way of classification
• Level 1Type of feed and process
• Liquid (solution or slurry)
• Wet particles (filter cake, granules etc.)
• Drying without change in psd
• Drying combined with milling
• Drying combined with agglomeration
• Large parts , sheets etc.

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Selection of dryers (4)

• Way of classification.
• Level 2 Mode of operation/ mode of heating
• batch or continuous
• convective or conductive or radiation
• Level 3Way of mixing
• not mixed rotating mechanically -
  pneumatically

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Selection of dryers (5)

• Example continuous/conductive/mechanically mixed
• Heated wall
• Paddle dryer
• Heated rotor and wall
• Steam tube dryer
• Disc dryer
• Disc dryer with two shafts
• Disc dryer with discs parallel to flow
• Screw dryer (Holoflite)
• Paddle dryer with one shaft (Porcupine)
• Paddle dryer with more shafts (Nara)
• Self cleaning paddle dryer (List)
• Thin layer, heated wall
• Horizontal thin layer dryer (Solidaire)

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Selection of dryers (6)

• For each dryer type
• Short description
• Products for which it is suited
• Typical advantages and disadvantages
• Capacity (U, maximum A, maximum T)
• Vendors (typical differences, size range etc.)
• Investment costs
• Literature

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Selection of dryers (7)

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• Vendors horizontal thin layer dryer
• The first three are identical.
• 1.      Hosokawa (NL- Doetinchem)
• Type Solidaire t 2-20 min, tip speed 10-20
  m/s, air cocurrent or countercurrent. Largest
  size A 107 m2 (d 2.3 m, L 15 m)
• 2.      Barr Rosin (Maidenhead, UK)
• Type Rosinaire
• 3.      Babcock BSH (D-47829 Krefeld)
• Type Solidizer A up to 67 m2, d .25-2.4 m, n
  up to 1100 rpm for the smallest diameter, 135 rpm
  for the largest one (4-20 m/s). Up to 540 paddles
  in 4 or 6 rows.
• 4.     Vomm (I-20089 Rozzano)
• d 0.35-1.7 m. Evaporation capacity for the
  largest one 2.5-4.5 t/h.
• 5.      VRV (I-20060 Ornago)
• A 2.5-34.5 m2, t 15 s-4 min, tip speed 15-45
  m/s, evaporation capacity 150 kg/m2.h at air
  temperature 600 oC and wall temperature 400 oC.
• 6.      Buss SMS (D-35501 Butzbach)