Large-Scale Stainless Steel Transesterification Reactor for Industrial Production

We build stainless steel reactors for processes that demand consistent heat transfer, reliable agitation, and clean operation at scale. This transesterification reactor is configured for large-batch production where the vessel must handle both chemical reaction and phase separation without compromising yield or cycle time.

The reactor shell is fabricated from 304 or 316L stainless steel, depending on the feedstock and catalyst system. For biodiesel or oleochemical processes, 316L is often preferred due to its resistance to chlorides and organic acids. We weld with full penetration and grind the joints smooth to eliminate crevices where product can accumulate. Interior surfaces are mechanically polished to Ra ≤ 0.4 µm, which simplifies cleaning and reduces the risk of cross-contamination between batches.

Heating and cooling are managed through a jacketed design. You can choose steam, thermal oil, or electric heating, with the option of a separate cooling coil for faster temperature transitions. The jacket is sized to match your required heating rate, not just the vessel volume. We also offer external circulation loops for precise temperature control when the reaction is exothermic.

The agitator is selected based on your fluid characteristics. For transesterification, a pitched-blade turbine or a hydrofoil impeller typically provides the shear and circulation needed to keep the phases mixed. We can also incorporate baffles to prevent vortexing and improve gas-liquid dispersion if you are sparging with an inert gas. Shaft sealing is handled with a mechanical seal, double mechanical seal, or magnetic drive, depending on your pressure and leakage requirements.

Our reactors are built to operate under pressures from full vacuum to 10 bar, with design temperatures up to 350°C. The top head can be fitted with multiple nozzles for feed inlets, vapor outlets, sensors, and a manway for maintenance. Customizable options include a sight glass, sampling port, and a bottom discharge valve designed for complete draining.

Technical Specifications

Choosing the Right Reactor

Before requesting a quote, define your process parameters. What is the exact chemical composition and concentration of your feed? What batch size do you need to produce? What is the operating temperature and pressure? Is the reaction exothermic or endothermic? What viscosity and solids content will the agitator encounter? Do you need to maintain a vacuum or inert atmosphere? These answers determine the vessel thickness, jacket design, agitator type, and seal configuration. We can also advise on material compatibility if you provide the full reaction chemistry.

FAQ

Q: Can you build a reactor for a specific pressure rating?
A: Yes. We design and pressure-test each vessel according to ASME or PED standards. Provide your required design pressure and temperature, and we will calculate the appropriate wall thickness and nozzle reinforcements.

Q: What about cleaning in place (CIP)?
A: Our reactors can be fitted with spray balls or a dedicated CIP nozzle. The polished interior and crevice-free welds make cleaning straightforward, even for viscous residues.

Q: Do you offer documentation and material certificates?
A: We supply material test certificates, weld maps, pressure test reports, and a full documentation package. Third-party inspection is available if your project requires it.

Send us your process description, batch volume, temperature and pressure requirements, and agitation needs. We will recommend the appropriate configuration and provide a detailed quotation. Our engineering team can also review your existing drawings or help optimize a new setup.