Polymerization Reactor System

Chemical Plant Polymerization Reactor


Polymerization is a process of reacting monomer molecules together in a chemical reaction to form polymer chains. There are many forms of polymerization such as condensation polymer, addition polymer and copolymerization. Abster Polymerization System is used for various polymerizations and performs accurate process.

Chemical Plant Polymerization Reactor

reaction vessel

Fixed bed reactor introduction

  • 1. Operating principle: Break down or recombined the materials through mixing, filling, heating and cooling, to promote the reaction of polymerization.
  • 2. Components: Body, gears, mixing devices, heating devices, cooling devices, seal, etc.
  • 3. Auxiliary Equipment: Distillation column, head tank, condenser, water separator, collecting cans, filters, etc.

General efficiency of the equipment

  • 1. The equipment can perform material heating and cooling according to process requirements. The heating method can completely meet actual requirements, such as steam and electric heating methods.
  • 2. The equipment also has various stirring types which can completely meet actual reaction and stirring requirements.
  • 3. The tank body and pipes have gone through mirror polishing treatment which makes it more adaptable for reaction of viscous materials.
  • 4. Double stirred reactor can be equipped with vacuum pump which enables vacuum bubble pumping.
  • 5. The equipment can also be equipped with spreading head of bottom-installation type or emulsifying head of pipeline type which can enable quick decomposition and reaction of the materials.
  • 6. The controller of the equipment can monitor the operation of the whole equipment, it can also clearly display reaction temperature and rotation speed for stirring, etc.

Classification of Polymerization

Condensation Polymerization

Condensation polymerization releasing small molecules as by-products such as water or methanol. Because this reaction resulting loss of small molecules which is often water, it’s also called dehydration polymerization. Concentrated Sulfuric Acid is used to process to accelerate reaction. Peptide binding and Ester binding is a typical example of condensation polymerization.
Ex) polyamide, polyester, urethane, bakelite 

  Addition Polymerization Addition polymerization is a reaction, where many monomer bond together via rearrangement of bonds without the loss of any monomers. This occur in different ways which may be through free radical polymerization, cationic polymerization, anionic polymerization andcoordination polymerization.
Ex) PVC, polyethylene, polystyrene   Copolymerization Copolymerization is a reaction derives polymer from 2 (or more) monomeric species, as opposed to a homopolymer where only one polymer is used. Common examples of this is a rubber using butadiene and styrene. It's widely used in chemical industry and fiber industry.   Coordination Polymerization Coordination Polymerization is a reaction in which monomer adds to growing macromolecule through an organometallic active center. Coordination type polymers are also stereoregular and can be isotactic or syndiotactic instead of just atactic.   Polymerization     Pros and Cons of Polymerization Polymerization used in industry is classified as follow : bulk polymerization, solution polymerization, suspension polymerization, emulsion polymerization. Refer to the following table for properties of each methods.
 
  Pros Cons Examples
Bulk
Polymerization
Simple process and derives macromolecules with high purity Hart to control exothermicity and high viscosity occurs. -Continuous polymerization of styrene.
- Casting of methacrylate plate
- Continuous polymerization of polyvinyl
Suspension
Polymerization
Easy heat dissipation and derives macromolecules with low viscosity available as it is. This reaction needs cleaning and dehydration. Polymer cogulation can occur, and purity of polymer is getting low due to pollution by addictive. - Adhesives made from polyvinyl acetate
- Rubber made from polypropylene and polybutadiene.
Solution
Polymerization
Easy heat dissipation and derives macromolecules with low viscosity available in solution. The solvent for reaction is expensive, hard to remove solvent completely, and chain transfer reaction with solvent can occur. Beads, pvc powder made from foamed polyethylene, polystyrene, PMMS.
Emulsion
Polymerization
Easy heat dissipation and derives macromolecules with low viscosity available in emulsion. This is suitable for mucoadhesive polymers. Purity of polymer is getting low due to emulsifier and other addictives - Polyvinyl, polyvinyl acetate, polystyrene
- Resin finishing agent for SBR, NBR, concrete
 
Safety Design and manufacture according to ASME(American Society of Mechanical Engineer), pressure vessel standards.
Design and manufacture according to KGS and KOSHA. Accurate equipment Improve process time and equipment efficiency by installation of heater
Maintain constant temperature by internal/external insulation
Improve safety through the multi-safety devices Customized engineering A variety of types and specification for customer
Different types of research are available by various additional components. Easy maintenance A variety of measurements facilitate analyzing operating conditions
Easy assembly/disassembly and clean up
Quick response to customer request by customer service team.

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