Rapid-heating multi-field fixed-bed reactor en Pekín, China

Overall efficiency improved by approximately 60% or more.
● Electric-heat utilization efficiency: increased by approximately 3 times or more (compared with conventional tubular furnace systems)
A tubular heating furnace requires about 130–150 W to maintain 500℃ under no-load conditions.
This reactor requires about 40 W to maintain 500℃ under no-load test conditions.
Overall electrical energy utilization can be improved by about three times or more.
● Experimental time efficiency: increased by several times or more (compared with traditional fixed-bed systems)
Conventional fixed-bed systems are time-consuming due to slow heating/cooling balance; temperature adjustments or catalyst screening take time, and cooling typically requires next-day operations.
This reactor heats and cools rapidly, with thermal equilibrium reached in about 15 minutes, allowing up to 8 or more samples per day.
Overall time efficiency can be improved by several times or more.
Enables single-wavelength, high-energy-density photothermal coupled catalytic reactions;
Implements coupling strategies between microwave fields and catalysts (e.g., heterojunction catalyst design) and has developed an integrated multi-field reactor combining light, heat, and microwaves;
Developed solutions for hard-to-degrade problems in industrial waste gas and chemical exhaust streams.
Distinctive Advantages
Light field, resistive heating field, microwave field—study catalytic reactions under different individual or synergistic fields, such as light–heat coupling, light–microwave coupling, and light–heat–microwave multi-field coupling.
① Resistive heating temperature rise rate: ≈100℃/min; ② Microwave heating temperature rise rate: ≈40–50℃/min; ③ Light-source heating temperature rise rate: ≈20℃/min;
High experimental efficiency and suitability for fast-heating reaction requirements.
① Fast thermal equilibrium (~15 min), improving heating-balance time by over ~3× compared with traditional heating; ② The reaction zone has a small void volume with almost no dead volume, enabling efficient gas exchange and very short reaction response times (on the order of seconds), showing significant improvement over conventional tubular reactors.
Light source: annular-illumination design places the light source close to the reactor, minimizing optical path loss; the reactor includes an internal reflective layer to improve secondary utilization of reflected light.
Resistive heating: ① Built-in heating elements with catalyst in close contact with the heater to effectively reduce conductive heat loss; ② Vacuum insulation layer design reduces air thermal conductivity (heat-conduction coefficient less than 1/100 of that at atmospheric pressure); ③ Reactor internal reflective layer enables secondary utilization of thermal infrared; compared with traditional reaction furnaces, maintenance energy consumption is reduced by over three times.
① Single-wavelength LED source enables precise light control, matching catalyst bandgaps, avoiding multi-wavelength interference, and improving quantum efficiency.
② The irradiated area is greatly increased and monochromatic light power density is relatively high; the catalyst surface can reach up to roughly 32 suns. Effective illuminated area ranges from 3.14 cm2 (bed height 10 mm) to 15.7 cm2 (bed height 50 mm), with a maximum illuminated area of about 31.4 cm2. For example, the HL100-365 light source has a light power density ＞3.2 W/cm2 (measured without mesh shielding).
Applications
Thermal–light–microwave multi-field coupling
Thermal–light coupling
Resistive heating field
Thermal–microwave coupling
Light energy field
Light–microwave coupling
Microwave energy field
Technical Parameters