Multifab™ Hydrogenators are recognized in the chemical industry for their high gas-liquid mass transfer, superior heat transfer coefficients, and accelerated reaction rates, leading to reduced batch times and excellent repeatability. A direct consequence of these efficient reactions is a significant exotherm, often exceeding ∼1,50,000 kcal/kmol for reactions like nitro to amino reduction (NO2 to NH2). Effectively managing this heat is critical for safe and optimal operation.
Timely heat removal is essential for ensuring reaction safety, maintaining optimal temperature and pressure, minimizing by-product formation, and preventing runaway reactions. Conventional heat transfer methods present inherent limitations:
Multifab™ has engineered an innovative tubular heat transfer solution integrated directly within the hydrogenator reactors. This design delivers exceptionally high utility-side heat transfer coefficients.
Each internal tubular heat exchanger is capable of circulating ∼40++ m3/h of cooling water, which simultaneously facilitates increased hydrogen gas sparging and prevents by-product formation due to H2 starvation. These units feature individual inlet and outlet points, allowing for flexible operation and easy isolation or replacement in case of fouling or corrosion, significantly minimizing downtime. Multifab™’s innovation effectively combines the best attributes of internal coils and external heat exchangers into a single, highly efficient system.
Multifab™’s innovative heat transfer solution provides substantial operational and economic advantages:
Exceptional Heat Transfer Performance: Achieves very high utility-side velocities (∼2+ m/s) for high heat transfer coefficients and reduced fouling. Combined with Multifab™ Gas Induction Agitation (Chemineer Scale 10), overall heat transfer coefficients can reach up to ∼1000 kcal/m2/h/∘C.
Enhanced Mixing: Design provides a baffling effect, increasing turbulence and aiding both mixing and heat transfer.
Cost-Effective: Unit cost is typically 30% to 50% lower than that of internal coils.
Improved Safety & Control: Precise thermal management mitigates runaway risks and optimizes reaction conditions, enhancing product quality and yield.
Increased Flexibility & Maintainability: Modular design allows for individual unit control and easy replacement, simplifying maintenance.
Are you facing challenges with reaction mass transfer, heat transfer, or complex gas-liquid/gas-liquid-solid reactions? Connect with Multifab™ today for innovative and effective solutions.
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