01Chemical Process Plants
Chemical process steps that must be carried out in a closed system under pressure. Pressure, temperature and material are selected according to the process chemistry and safety assessment.
Chemical and Process IndustryPressure Reactor – Closed Vessel for Processes Run Under Pressure
PRO MAKINA · Pressure Reactor
- Duty
- Processes that must run under pressure
- Design pressure and temperature
- Defined from process data
- Shell
- Cylindrical shell, dished heads, flanged connections
- Safety
- Instruments and safety devices per process risk
Overview
Custom Reactor Vessels for Pressure Processes
A pressure reactor is a closed process vessel used when a process cannot be carried out at atmospheric pressure. Liquids whose vapour pressure rises with temperature, processes with a gas phase or reactions that must be kept in a closed system fall into this group.
The vessel consists of a cylindrical shell, dished heads, flanges and nozzles. Wall thicknesses are calculated from design pressure and temperature, the selected material and the corrosion allowance. The design code and statutory certification to be applied are defined at the start of the project according to the regulations of the country of installation and the project specification.
Heating, cooling or agitation requirements are assessed according to the process. Where an agitator is used, the shaft seal is selected for the operating pressure and the process fluid.
01Process Flow
Pressure Reactor Process Flow
The diagram shows the general flow in which raw materials are fed to the reactor, processed in the closed vessel under controlled pressure and temperature, and discharged according to procedure. Step order and operating conditions are defined by the process.
Scroll horizontally to view the full diagram.
Product line
- 1
Raw material feed: Raw materials enter the closed vessel in the order defined by the process procedure.
- 2
Controlled pressure process: The process runs at a pressure and temperature within the design limits.
- 3
Pressure and temperature control: Pressure and temperature are measured continuously; safety devices protect against overpressure.
- 4
Discharge per procedure: Once pressure is reduced to a safe level, product is transferred to the next step.
Heating / cooling line (if required)
- A
Heating or cooling: If required, a heating or cooling medium is supplied to the jacket or coil.
- B
Medium return: The medium returns to the plant utility circuit.
Discharge takes place after pressure has been reduced to the safe level defined in the process procedure. Safety devices are selected according to the process risk assessment.
02Applications
Pressure Reactor Applications
01
02Fertilizers and Agrochemicals
Steps in fertilizer and agrochemical production that require a closed system or pressure. Where the work can be done in an atmospheric agitated reactor, a pressure reactor is not needed; selection is based on process data.
Fertilizer and Granulation Plants
03Design & Manufacturing
Custom Pressure Reactor Design and Manufacturing
PRO MAKINA engineers pressure reactors to design conditions confirmed by the customer's process data. Shell geometry, dished heads, flange and nozzle layout, material, sealing, instrumentation and safety devices are assessed together.
- Shell designed to confirmed conditions
- Material suited to the process fluid
- Sealing suited to pressure
- Pressure and temperature measurement, safety devices
Process Design Data
- 01
Process and Product
Process purpose, raw materials and properties of the process fluid.
- 02
Design Conditions
Design and operating pressure, design and operating temperature.
- 03
Shell and Connections
Volume, shell geometry, heads, flanges and nozzles.
- 04
Material
Material suited to the process fluid and corrosion allowance.
- 05
Safety and Maintenance
Safety devices, measuring points, sealing and inspection access.
Design pressure, temperature, wall thickness, test pressure, design code and certification are defined from project data. No values, certificates or standard conformity are declared on this page.
04Gallery
Pressure Vessel Shells
05FAQ
Pressure Reactor FAQ
What is a pressure reactor?
A closed process vessel designed to withstand pressure, used when a process cannot be carried out at atmospheric pressure.
What is the operating pressure of a pressure reactor?
There is no fixed value. Design and operating pressure and temperature are defined for your process; shell and wall thicknesses are calculated from these values.
Which design code and certification apply?
The design code and statutory certification are defined at the quotation stage according to the regulations of the country of installation and the project specification.
How does it differ from an agitated reactor?
Agitated reactors mostly operate at atmospheric pressure. A pressure reactor requires a shell, connections, sealing and safety devices calculated for pressure.
What information is needed for a quotation?
Process purpose, product and process fluid, design and operating pressure, design and operating temperature, volume and the required design code or certification.
06Resources
Related Machines and Plants
Agitated ReactorReactor for liquid processes that require agitation.Cooling TankProcess tank for controlled cooling of hot liquid product.Storage TankSafe storage of liquid products and raw materials.Reactors & Process TanksTanks for liquid preparation, mixing and storage.
Technical Quotation
Request a technical quotation for a pressure reactor
Share your process data and design conditions, and we will assess the pressure reactor together with you.
Information Needed for a Technical Quotation
- Process purpose and product
- Process fluid and corrosion conditions
- Design and operating pressure
- Design and operating temperature
- Volume and heating, cooling or agitation needs
- Required design code or certification