Cylindrical heat exchanger / reactor or heat exchanger for heat exchange between at least a first and a second fluid

The cylindrical heat exchanger reactor with alternating layers and curvilinear sectors addresses thermal imbalances in high-pressure reactions, enhancing efficiency and safety by optimizing heat exchange and mechanical strength.

WO2026114629A1PCT designated stage Publication Date: 2026-06-04KHIMOD
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Patent Information

Application Number
PCT/EP2025/082317
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-11-29
Filing Date
2025-11-07
Publication Date
2026-06-04

AI Technical Summary

Technical Problem

Existing heat exchanger reactors struggle to efficiently manage intense heat flows generated by exothermic or endothermic reactions under high pressure and temperature conditions, leading to thermal imbalances such as hot spots or cold spots, which affect conversion rates, selectivity, and catalyst degradation, and pose safety risks.

Method used

A heat exchanger reactor design featuring a cylindrical geometry with alternating primary and secondary layers and isthmuses, arranged in curvilinear sectors, allowing for uniform distribution of forces and optimized heat exchange, capable of withstanding high pressures, and incorporating non-straight channels for improved fluid circulation and heat transfer.

Benefits of technology

The design enhances reaction efficiency by maintaining uniform heat exchange and mechanical robustness, reducing thermal inertia, and preventing catalyst degradation, while allowing precise temperature control and high-pressure operation, suitable for demanding chemical reactions.

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    Figure EP2025082317_04062026_PF_FP_ABST
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Abstract

The invention relates to a heat exchanger / reactor or heat exchanger comprising: - a main body (1) having, over at least one axial portion thereof, the general shape of a cylinder of revolution about a central axis (Y), the body (1) comprising: • a primary circuit comprising a plurality of primary layers (10) each comprising at least one primary channel (12), • a secondary circuit (25) comprising a plurality of secondary layers (20) each comprising at least one secondary channel (22), the secondary channel (22) extending longitudinally in a radial direction towards the side wall (4) of the body (1), and • a plurality of isthmuses (30), wherein the primary and secondary layers, separated by isthmuses, are distributed among a plurality of sectors (40), at least one of which sectors (40) comprises • a primary layer extending radially along a non-rectilinear primary axis of extension (Yp), and • a secondary layer extending along a non-rectilinear secondary axis of extension (Ys).
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Citation Information

Patent Citations

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    EP3488924B1

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    EP3603795A1

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  • PROCEED DE REALIZATION D'UN ELEMENT COMPORTANT DES CANAUX DE CIRCULATION DE FLUIDE

    FR2879489A1