Quench Column



Chemical Reactors & Process Vessels
Jackets, Coils & Steam Calandria
Custom Autoclaves

Process Vessels & Steam Calandria

We design and engineer shell-type research and custom autoclaves working under vacuum or positive pressure, heated either electrically, with steam or by HTF media. Specifically, we have the capability and experience in designing and building custom autoclaves – along with the heat transfer and manufacturing processes undertaken in them. Process vessels may be jacketed or quilted, fitted with coils, steam calandria, or arranged for recirculation of their contents through primary heating or cooling equipment. Primary fluid systems for chemical reactors may operate isothermally (as with saturated steam or refrigerant) or be set up for sensible operation (with thermal fluid calandria, for example); whilst endo- or exothermic reactions may be tempered accurately to follow optimum process conditions with respect to time. We provide steam calandria for new or existing process vessels, fully supported by thermal design calculations and mechanical specifications. Dove Thermal has more than thirty years experience in the process and mechanical design of heat & mass transfer equipment, including absorption columns, gas quenching vessels and tower packings. GAs and 3D models of process vessels supplied in most CAD formats, with PIDs and stress isometrics as required.


Processes for HTF calandria tempered operations.
Custom autoclaves for laboratory and field applications.
Mathematical modelling, pipe stress and related services.
Columns and towers for heat and mass transfer operations.
Oil and thermal fluid calandria for non-aqueous environments
Retrofit dimpled quilting available in stainless or non ferrous materials.
Chemical reactors with immersion coils for integration with new or existing plant.
Heat transmission by jackets, coils, steam calandria, injection or external recirculation.
Jacketed vessel design for batch, continuous and hybrid processes for heating & cooling.

Materials and Standards

TIG, MIG & MMA welding procedures, with pressure vessel codings to PD 5500, ASME VIII Div.1, etc.
Welding in carbon and stainless steels, duplex grades, nickel alloy, aluminium and copper.
Finishes include polishing, brushing, passivating, galvanizing, epoxy and powder coating.

Capacity and Workscope

Fuel test rig tempering vessel HTF calandria for Cullum Detuners
Reactors and processes for Banner Chemicals; Autoclave design & math modelling for Design Council
Custom autoclaves for Freeland Horticulture; High Speed Thermodynamic Valve for McCains Group
High vacuum furnace services for Torvac Processing; Large process condensers for Tate & Lyle Sugars
Boiling pan steam calandria for T&L Special Sugars; Pressurised Dowtherm heating plant for DuPont