| Rotor Adsorbent Type | Hydrophobic zeolite, commonly selected for VOC treatment and humid industrial exhaust | Hydrophobic zeolite maintains adsorption performance better than moisture-sensitive adsorbents in humid air streams | Adsorbent technical data sheet, moisture-resistance data, and application references | Pass / Review / Fail |
| Applicable VOC Concentration | Suitable for low-to-medium VOC inlet concentrations; final limits must be confirmed by process simulation | Inlet concentration affects adsorption capacity, outlet emissions, safety, and rotor size | Design calculation based on actual VOC type, concentration, airflow, humidity, and temperature | Application-specific confirmation required |
| VOC Removal Efficiency | Typical design target: approximately 90%–99%, depending on VOC chemistry and operating conditions | Removal efficiency determines whether the system can meet local emission limits | Factory performance test, third-party test report, and guaranteed outlet concentration | Guaranteed / Indicative only |
| Airflow Capacity | Common project designs range from several thousand to more than 100,000 m³/h | Incorrect airflow sizing can cause insufficient treatment, excessive pressure drop, or unnecessary capital cost | Fan curve, rotor face velocity, process airflow calculation, and operating envelope | Match to process demand |
| Rotor Face Velocity | Usually engineered within a moderate range, often around 1.5–4.0 m/s depending on rotor structure and duty | Higher velocity may increase pressure drop and reduce contact time | Airflow-to-face-area calculation and pressure-drop curve | Verify against design conditions |
| Pressure Drop | Often designed within approximately 100–800 Pa, subject to rotor depth, velocity, and filter loading | Pressure drop directly affects fan energy consumption and operating cost | Clean and loaded pressure-drop curves at the specified airflow | Compare total system energy demand |
| Regeneration Temperature | Common operating designs use approximately 120–220°C, depending on VOC and zeolite grade | Temperature influences desorption efficiency, energy consumption, and downstream oxidation requirements | Thermal design calculation, heater specification, and temperature-control accuracy | Confirm by VOC composition |
| Concentration Factor | Commonly engineered around 5:1–20:1; the achievable factor depends on airflow ratio and VOC loading | A higher concentration factor can reduce the size and energy demand of downstream oxidation equipment | Mass-balance calculation showing inlet airflow, concentrated airflow, and VOC mass flow | Validate using mass balance |
| Seal Leakage | Low leakage design with documented seal material, adjustment method, and inspection procedure | Excessive leakage can reduce removal efficiency and increase cross-contamination between air sections | Leakage test method, seal inspection record, and commissioning checklist | Critical design checkpoint |
| Rotor Drive and Speed Control | Variable-speed drive with overload protection, alarm output, and accessible maintenance components | Rotor speed affects adsorption time, desorption performance, and system stability | Motor data sheet, control logic, alarm list, and factory run test | Review control integration |
| Construction Materials | Corrosion-resistant steel or coated carbon steel selected according to VOC, humidity, and temperature | Material compatibility affects service life and prevents corrosion-related leakage | Material list, coating specification, weld-quality record, and corrosion assessment | Check against exhaust chemistry |
| Safety and Explosion Protection | Risk assessment covering hot surfaces, VOC flammability, static electricity, fire detection, and emergency shutdown | VOC systems may present fire or explosion risks when combustible vapors and ignition sources coexist | Hazardous-area assessment, safety interlock list, grounding plan, and applicable conformity documents | Mandatory project review |
| Testing and Quality Control | Documented incoming inspection, assembly inspection, electrical testing, trial operation, and final inspection | Consistent quality records reduce installation problems and support warranty claims | Quality plan, inspection and test plan, calibration certificates, and final test report | Prefer traceable records |
| International Compliance | Electrical, machinery, pressure, EMC, and environmental compliance matched to the destination country | Compliance requirements differ by market and may affect customs clearance and site acceptance | Declaration of conformity, electrical drawings, manuals, risk assessment, and destination-market documents | Confirm before purchase order |
| Documentation Package | English manuals, GA drawings, P&ID, wiring diagrams, spare-parts list, commissioning procedure, and maintenance schedule | Complete documentation improves installation, operator training, and long-term maintenance | Sample documentation package issued before contract approval | Score for completeness |
| Warranty and Spare Parts | At least 12 months after commissioning or 18 months after shipment, subject to contract terms | Warranty coverage and spare-parts availability reduce lifecycle risk | Warranty terms, recommended spare-parts list, replacement intervals, and service response procedure | Compare total ownership cost |
| Project Delivery Capability | Clear engineering schedule covering technical clarification, design approval, manufacturing, inspection, shipment, installation support, and commissioning | A structured delivery process helps control interface risks in overseas projects | Project schedule, responsibility matrix, packing specification, shipping plan, and remote-support arrangement | Assess schedule reliability |