Fixed-Bed Catalytic Cracking

The catalytic cracking microreactor fixed-bed online evaluation system is designed for butene catalytic cracking or the coupled reaction of butene with methanol, coupled with online gas chromatography. The system features a reactor made of 310S material, equipped with a three‑stage electric heating system. The system comprises a gas feed unit, a liquid feed unit, a preheating unit, a reaction unit, a product condensation and collection unit, and a tail gas treatment unit. The reactor is designed to operate at a temperature of 800°C and a pressure of 10 MPa. The system demands a high degree of automation, excellent data accuracy and reproducibility, as well as robust safety and reliable, long‑term stable operation.

50L Photocatalytic Device

The 50L photocatalytic reactor is a highly efficient single‑channel catalyst evaluation system. The system is equipped with ports for stirring, temperature measurement, feeding, gas inlet, gas outlet, and light source installation. All components in contact with the reaction medium are made of corrosion‑resistant materials, and it features a corrosion‑resistant PTFE bottom valve for discharge. The three light sources can be controlled independently, operating either separately or in coordinated combination, each paired with its own water‑cooled system, and equipped with safety protection and liquid‑phase protection features. The control system employs a dedicated control unit featuring a touch screen and PLC for comprehensive operation.

Polyester reaction apparatus

The polyester polymerization reactor test system manufactured by Shanghai Yanzheng Instruments supports key process stages such as esterification (ester exchange), polycondensation, and vacuum degassing. It is compatible with a variety of polyester systems, including PET, PBT, and PLA, and meets the full-chain requirements from basic research to pilot-scale scale-up. The test system features a modular design, allowing for flexible configuration of reactor volume (2 L–50 L), vacuum system, and online monitoring modules to suit different experimental scenarios. With precise control and reliable data, the system delivers high‑precision temperature control (±0.5℃), multi‑stage vacuum regulation, and real‑time viscosity and pressure monitoring, ensuring highly controllable reaction conditions.

Reactor Unit

Specifically designed for gas–liquid reactions, the reactor features titanium construction that is both corrosion‑resistant and pressure‑tolerant, while its dual‑path bottom‑inlet gas supply enhances reaction efficiency. A condensation reflux system paired with a high‑pressure tail gas absorption unit (including absorbent liquid treatment and backpressure control) ensures safe and environmentally friendly experimentation. The vessel body is equipped with a gas spring–assisted lifting mechanism and a one‑click quick‑open sealing system featuring perfluoroether‑based temperature‑resistant seals, offering convenient operation and making it well suited for high‑temperature, high‑pressure synthesis applications—helping to drive efficient, controllable R&D in fine chemicals.

High‑pressure reactor

The ultra-high temperature and high-pressure reactor manufactured by Shanghai Yanzheng is a specialized product designed for extreme temperature and pressure conditions, operating at temperatures up to 400°C and pressures up to 20 MPa. The reactor features a specially engineered heating module tailored to withstand high-temperature and high-pressure environments, along with a robust vessel seal and advanced control system configurations. Additionally, enhanced physical and control system safeguards have been incorporated to ensure the safety of researchers. Years of experience and professional quality drive scientific research… Yanzheng Instruments’ high-pressure reactors come with pressure certification, offering customizable options for temperature, pressure, material, and accessories, with a comprehensive range of models available—and can be tailored to meet your specific needs!

Elevating High-Pressure Reactor

The touch screen offers simple, intuitive operation with a clear user interface, eliminating the mechanical and cumbersome issues associated with traditional button-based controls. It can record and collect all real-time data and display it graphically on the touch screen in an online format—such as reaction temperature, pressure, time, and stirring speed—allowing users to easily review and analyze the data at any time and export it via USB drive. The system can generate temperature, pressure, and speed curves, and supports unattended operation.

High‑pressure hydrogen generator

The YZHG-500 / YZHG-500H pure water–based high‑purity hydrogen generator employs transition metal element catalysis in its electrolytic cell and undergoes multi‑stage purification, with a built‑in trace oxygen scavenger (which requires no activation), resulting in high‑purity hydrogen gas.

CO2 Adsorption Visual Reactor

The CO2 adsorption visual reactor employs oven heating, a gas buffer tank, and a jacketed reactor design, equipped with high‑temperature oil heating for rapid temperature rise. All valves and pressure sensors are located outside the oven and are fitted with heated piping. The reactor body is equipped with a strip-shaped viewing window, whose flange is engraved with scale markings and allows light to pass through. It is outfitted with high‑precision pressure sensors to accurately monitor and record changes in carbon dioxide pressure within both the gas buffer tank and the reactor. Stirring is performed using an imported, high‑temperature–resistant magnetic stirrer.

Intelligent High-Pressure Reactor

The pilot-scale intelligent reactor manufactured by Shanghai Yanzheng Company integrates the advantages of high‑temperature, high‑pressure reactors with automation and intelligent technologies. With a capacity ranging from 500 ml to 5000 ml, it features a touch screen that offers simple, intuitive, and straightforward operation, along with a clear user interface—solving the mechanical and cumbersome issues associated with traditional button‑based controls. It can record and collect all real‑time data, displaying it graphically on the touch screen in an online format, including reaction temperature, pressure, time, and stirring speed. Users can easily view and analyze this data at any time and export it via USB drive. The system can generate temperature, pressure, and rotational speed curves, and it supports unattended operation.

Acetylene Hydrogenation to Formaldehyde Coupled with Methanol Liquid-Phase Oxidation to Formaldehyde: Batch Reactor Experimental Setup

The acetylene hydrogenation to formaldehyde coupled with methanol liquid-phase oxidation to formaldehyde batch reactor experimental setup allows for homogeneous, long‑cycle batch reactions under medium–high pressure and at relatively low laboratory temperatures. After the long‑cycle reaction, the liquid-phase products can be quantitatively collected from the bottom of the reactor. The system’s operating control is implemented via PLC and a touch‑screen computer. Customized, non‑standard modifications can also be carried out according to different user requirements. This setup is a highly practical long‑cycle catalyst evaluation device for universities and research institutions, boasting excellent practicality.

Autoclave

The PTFE hydrothermal reactor manufactured by Shanghai Yanzheng consists of a high‑quality 304 stainless steel outer vessel with a PTFE inner liner. Its safe operating temperature is below 220°C, and its maximum pressure rating is 3–6 MPa. Featuring an aesthetically pleasing design, a rational structure, simple operation, and excellent corrosion resistance, it is an ideal product for sample digestion in research fields such as university laboratories, environmental monitoring, public health and disease prevention, and quality control.

Microscopic Reaction Kettle

The micro-scale reaction vessel is equipped with strip-shaped viewing windows on adjacent sides and a circular viewing window on the top, featuring a high‑definition camera that can capture real‑time images of the reaction. This ensures the personal safety of laboratory personnel. The reaction vessel comes with software that allows the camera’s recorded video to be displayed directly on a computer screen, automatically generating video files that are saved on the computer—and the videos can be easily exported.