Molecular Sieve Product Care
and Loading Guide

2. Transportation & Delivery

● Use a clean, dry vehicle or container with a flat floor and no debris, protrusions or sharp edges that could damage the packaging.

● Protect the cargo from rain, snow, spray, condensation and other sources of moisture throughout transportation.

● Secure and protect packages against tipping, collision, abrasion and crushing. Handle them gently with suitable lifting equipment; do not drop or tumble them.

● For long-distance transport, inspect the load at suitable intervals and correct any movement or package damage promptly.

● On delivery, verify the product, quantity, batch identification and packaging against the delivery documents. Inspect for damaged seals, wet packaging or contamination.

● Keep affected packages separate. Record and photograph any shortage or transport damage and contact JALON before using damaged, opened, wet or unidentified material.

3. Storage & Handling

3.1 Storage Requirements

• ● Store indoors in a clean, dry, well-ventilated warehouse, protected from direct sunlight, water, contamination, acids and alkalis.
• ● Unless the product label or order documents specify otherwise, maintain the storage temperature between −10°C and 40°C and indoor relative humidity at or below 85%.
• ● Keep packages sealed, upright where marked, off the ground and protected from puncture, crushing and unstable stacking. Retain all original labels and batch identification.
• ● Outdoor storage is not recommended. If unavoidable, use high, well-drained ground; keep packages raised and fully protected from rain, freezing, sunlight and condensation. Do not exceed one week.

● Once opened, minimize exposure to ambient air, use the product promptly and reseal any unused material immediately while retaining its batch identity.

• Package integrity: Keep the product in its original packaging whenever possible. Repacking or subdivision may expose it to moisture or contamination and compromise batch traceability.

3.2 Handling Precautions

• ● Read the current MSDS and follow the specified safety and personal protection requirements.
• ● Molecular sieves release heat when adsorbing water. Avoid rapid wetting and direct contact with wet skin.
• ● Keep packages closed until use, minimize dust generation and handle the product carefully to reduce particle damage and fines formation.
• ● Use clean, dry equipment and prevent contact with moisture, oil, grease, rust, chemicals or residues from other materials.
• ● Before opening a steel drum, slowly loosen the vent screw to equalize pressure. Keep your face and body away from the lid while opening.

4. Loading Guidance

4.1 Before Loading: Mandatory Checks

• ● Confirm the correct product grade, particle size and required quantity before loading.
• ● Complete all required isolation, depressurization, gas freeing, lockout/tagout, confined-space and other site safety checks.
• ● Confirm that the vessel, distributors, support grids, screens and contact surfaces are correctly installed, clean, dry and free from water, oil, rust, welding debris and other foreign material.
• ● Ensure that the loading area is protected from rain, fog, spray and excessive moisture, and that all loading equipment is clean, dry and mechanically sound.
• ● Brief the loading team on the loading sequence, responsibilities, communication, emergency measures and situations in which loading must be stopped.

Contact JALON Technical Service before loading if the loading sequence, bed arrangement or equipment requirements are unclear.

4.2 General Loading Recommendations

1. (1) Stage the materials in the required loading sequence and keep packages closed until immediately before use.
2. (2) Use a clean, dry hopper and loading sock or sleeve. Keep the discharge point close to the bed surface to limit free fall, segregation, particle damage and dust.
3. (3) Load at a steady rate and distribute the material evenly. Avoid forming an uneven or strongly coned bed surface.
4. (4) Do not walk directly on the molecular sieve. If access is permitted, use clean load-distribution boards or other suitable protection.
5. (5) At each layer transition, verify the material, loaded quantity, bed level and surface levelness before continuing.
6. (6) Level the final bed without crushing or excessive compaction. Install screens, ceramic balls, hold-down devices or other bed-restraint components according to the equipment and project requirements.
7. (7) Record the product batches, quantities and key loading information, then close and seal the vessel promptly to prevent moisture or contamination from entering.

4.3 After Loading & Start-up

• ● If start-up is delayed, keep the vessel sealed and isolated, or protect it with dry air or nitrogen having a dew point below −65°C.
• ● Confirm that upstream separation, filtration, drainage and pretreatment systems are operating correctly before feed enters the bed.
• ● Follow the product- and process-specific start-up and regeneration requirements. Control pressure and temperature changes to limit bed movement and particle damage.
• ● Monitor pressure drop, temperature and outlet performance during commissioning. Contact JALON if abnormal conditions occur or if the vessel has been left open or exposed to moisture.

5. Used Molecular Sieve & Unloading

Hazard warning: Used molecular sieve may retain process substances that can be released when the vessel is opened or the adsorbent is exposed to air. Depending on the service, these substances may present toxic, flammable, corrosive or oxygen-deficiency hazards.

Prepare a service-specific unloading plan based on the process composition, operating history, vessel design and applicable regulations. Vessel opening, entry, unloading and disposal must be performed by competent personnel under the site safety system. Fresh-product loading guidance must not be used as an unloading procedure.

6. Technical Support

JALON can provide on-site or remote technical guidance based on the equipment and project conditions. Contact your JALON representative if the loading arrangement, operating requirements or site conditions are unclear.