Desktop fixed-bed is a multi-functional desktop fixed-bed integrating manual control and automatic control. It has a small dead volume and can realize precise control of experiment condition, so as to ensure experiment reproducibility and sensitivity. Adopting a distributed control system solution, the device is highly stable and safe. Moreover, the device adopts a modular design concept. After a simple expansion or upgrade, it can be used in fields such as catalyst evaluation and membrane performance,and it is well suited to research of dynamics of continuous flow reaction, exploration of reaction conditions and optimization of technological conditions.
Design principle of Kemi custom continuous flow reactor/catalyst evaluation unit:
1. Learn about basic requirements of the customer and relevant key parameters and develop the preliminary design scheme
2. Discuss the scheme with the customer and identify the risk points
3. Amend the scheme until it is approved by the customer and create an order
Note: The customer enjoys the right of final decision of the scheme. Kemi will give the customer corresponding advice based on Kemi’s experience and cases
Technical parameters
| Main design parameters | Maximum design temperature (℃) | 800 |
| Maximum design pressure (bar) | 100 | |
| Reactor parameters | Catalyst loading volume(mL) Constant temperature segment length (mm) Reactor material | 0.5~5 As required by the customer Stainless steel 316 L, Hastelloy C-276, Inconel 600, etc. (as required by the customer) |
| Feed system | Gas/liquid feed flux qua ntity | 1, 2, 4 or as required by the customer |
| Gas mass flow controller | Mass flow controller from brands such as Sevenstar/METRON,5SCCM-10SLM,precision ±1.5% FS, repeatability precision ±0.2% FS | |
| High-pressure metering pump | Metering pump from brands such as USA SSI/Shanghai Sanotac/Hangzhou Pupu, 0-10 mL/min, utlet pressure 0-42 MPa, control precision 2% RD | |
| Post-treatment system | Cooling/warming equipment | Coil type or jacketed type (selected as required) |
| Online liquid sampling and compensation | Manual,semi-auitomatic, full-automatic | |
| Product analysis | Offline and online gas chromatography or mass spectrometry (optional) | |
| System parameters | System power | 200-240 VIAC,50-60 Hz |
| System size (cm) | About 65*100*90 | |
| System weight (kg) | About 180 | |
| Control system | Germany Siemens PLC module and 10.2-inch MCGS touch screen are adopted for the hardware control system. The operating system is deeply customized and developed. The DCS interface includes the display and control screens of process, flow and temperature and data trend chart |
