Assembly Over GLR

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Assembly Over GLR

The Assembly Over GLR (Glass-Lined Reactor) is a modular overhead process package designed for integration with large-capacity glass-lined reactors, where full borosilicate glass reactors become impractical due to size, pressure, or thermal duty limitations.

These assemblies replicate the functional advantages of full glass systems—such as transparency, chemical resistance, and process control—while utilizing a glass-lined steel reactor as the base vessel. The overhead section is constructed using borosilicate glass components and high-duty glass shell & tube heat exchangers, making it ideal for reaction under reflux, fractional distillation, solvent recovery, and vapor handling at production scale.

As reactor volumes increase, coil condensers are replaced with shell & tube glass heat exchangers to safely handle higher vapor loads, improved heat transfer, and continuous operation. Assemblies are commonly installed over 250 L to 3000 L GLRs and beyond, with engineered vapor columns, condensers, receivers, and auxiliary modules matched precisely to reactor size.

These systems are widely used in pharmaceuticals, specialty chemicals, agrochemicals, and bulk intermediates production.

Key Features & Advantages

•  Designed for large-scale reaction & distillation
•  Modular overhead glass construction
•  Shell & tube glass heat exchangers for high-duty operation
•  Compatible with vacuum & atmospheric processes
•  Continuous distillate collection without breaking vacuum
•  Excellent scalability from pilot to production
•  Long service life with corrosion-resistant materials

System Configuration & Design Philosophy

• Base Vessel: Glass-lined steel reactor (GLR)
• Overhead Section: Borosilicate glass modules
• Heat Exchange: Glass shell & tube or coil-type (capacity dependent)
• Operation Modes: Reflux, distillation, azeotropic distillation
• Mounting Options: Fixed installation, skid-mounted, or mobile
• Installation: Suitable for fume hood or plant-floor installation

Technical Specifications (General)

Typical Vapor Column Dimensions

Heat Exchanger & Overhead Equipment Sizing

Standard Overhead Glass Assemblies – Reference Table

Exact sizing depends on solvent load, vapor rate, and operating conditions.

Standard Process Equipment Included

• Spherical / Cylindrical graduated feed vessels
• Vapour column – packed or hollow
• Primary condenser
• Coil type glass heat exchanger
  • Shell & tube glass heat exchanger (for large scale)
  •  Vent / secondary condenser
  •  Product cooler for distillate
  •  Phase separator (for azeotropic or multi-phase systems)
  •  Distillate receivers for continuous operation
  •  Vacuum-balanced pipeline design

Process Integrity & Safety Design

• Single-point vacuum application
• Complete hydraulic integrit
• Pressure equalization across syste
• Continuous distillation without vacuum break
  
• Reduced solvent losses
  
• Safe handling of high vapor loads

Optional & Additional Accessories

(Strong cross-selling with your other products )

 Process Accessories

• Fractional distillation columns
• Distillation overhead packages
• Phase separators
• Product receivers (glass / GL) Thermal & Utility Systems

1. External heaters & chillers
2. Heat transfer fluid circulation units
3. Glass or SiC heat exchangers

 Vacuum & Gas Handling

• Vacuum pump systems
• Gas scrubbers (for vent treatment)
• Condenser knock-out pots

 Structural Options

• Skid-mounted mobile assembly
• SS / Glass hybrid construction
• GL bottom pan with glass top

Applications

•  Reaction under reflux
•  Fractional distillation
•  Solvent recovery systems
•  Azeotropic distillation
•  High-temperature chemical processing
•  Large-scale pharmaceutical & chemical production

Why Choose Our Assembly Over GLR?

•  Engineered specifically for production-scale GLRs
•  Superior heat transfer with shell & tube design
•  Modular & customizable configurations
•  Long-term reliability under continuous operation
•  Seamless integration with existing GLRs

The Assembly Over GLR bridges the gap between full glass systems and large-scale production, delivering performance, safety, and scalability in one engineered solution