1. Technical Principles  

    Define Hydrogen Production Requirements: Determine the appropriate hydrogen production technology based on the scale and purity requirements of your facility. For example, water electrolysis may be more suitable for research institutions or the electronics industry that require high-purity hydrogen in relatively small quantities, as it can produce hydrogen with a purity of over 99.99%. For large-scale industrial hydrogen use, such as in oil refining or chemical industries, steam methane reforming (SMR) may be a more economical choice if abundant fossil fuel resources are available.  

2. Capacity and Scale  

    Assess Hydrogen Demand: Accurately evaluate future hydrogen usage based on production plans and process requirements. Large chemical enterprises may require hydrogen production equipment with a daily output of thousands or even tens of thousands of cubic meters, while small hydrogen refueling stations or laboratories may only need equipment with a daily output of a few hundred or even tens of cubic meters.  

Consider Space Constraints: The footprint and height of hydrogen production equipment are also important factors. Steam methane reforming equipment typically requires a larger site, including reactors and purification systems, while water electrolysis equipment is more compact and occupies less space. If the facility has limited space, compact hydrogen production equipment, such as skid-mounted water electrolysis systems, should be considered.  

3. Purity Requirements  

   Production Process Needs: Different industrial processes have varying hydrogen purity requirements. For instance, in semiconductor manufacturing, hydrogen purity must exceed 99.999% to avoid impurities affecting chip quality, while in some ordinary chemical hydrogenation reactions, a purity of around 98% may suffice.  

Supporting Purification Equipment: If the hydrogen produced by the equipment does not meet the required purity, additional purification systems must be considered. For example, pressure swing adsorption (PSA) systems can further enhance hydrogen purity by removing impurities such as carbon dioxide, carbon monoxide, and water vapor.  

4. Cost Factors  

   Equipment Procurement Costs: The prices of hydrogen production equipment vary significantly depending on the type and scale. Generally, water electrolysis equipment, especially those using proton exchange membrane (PEM) technology, has a higher initial investment, while steam methane reforming equipment is relatively cheaper, though the price also depends on capacity and technical parameters.  

Operation and Maintenance Costs: These include energy consumption, raw material costs, and maintenance expenses. Water electrolysis has high energy consumption, with electricity being the primary operating cost, while steam methane reforming requires significant fossil fuel consumption, making raw material costs a major factor. Additionally, advanced hydrogen production equipment may require specialized technicians for maintenance, increasing operational costs.  

Lifecycle Costs: Consider the equipment's lifespan, depreciation rate, and maintenance costs to calculate the total cost over its lifecycle. Equipment with higher upfront costs but stable performance, long service life, and low maintenance costs may offer better cost-effectiveness in the long run.  

5. Safety and Reliability  

   Safety Performance: Hydrogen production involves flammable and explosive gases, making safety critical. Choose equipment with comprehensive safety features, such as overpressure protection, overtemperature protection, and hydrogen leak detection and alarm systems. Additionally, the materials and manufacturing processes of the equipment must comply with relevant safety standards to ensure safe operation.  

Reliability and Stability: The reliability of the equipment directly impacts production continuity and stability. Select suppliers with a strong reputation, mature technology, and extensive application experience. Their products are typically better designed, manufactured, and quality-controlled, reducing the risk of equipment failure and downtime.  

6.Supplier's Technical Support 

   Additionally, consider the supplier's technical support and after-sales services, including equipment installation and commissioning, operator training, maintenance services, and spare parts supply. Timely and professional technical support ensures smooth equipment operation and minimizes losses caused by equipment failures.