Issues with putting new storage tanks into use

6.1 Production Preparation 6.1.1 In accordance with the \"Regulations on the Management of Commissioning Tests for Large and Medium-Sized Refining and Chemical Processing Facilities of China National Petroleum Corporation\" (You Lian Xiao Zi [2006] No. 185), preparations for the operation of newly built storage tanks and tank farms shall be carried out, including the formulation of commissioning plans that cover purging, pressure testing, and individual unit tests. 6.1.2 Strictly implement the \"Regulations on the Management of Operating Procedures for Production Units in Refining and Chemical Enterprises of China National Petroleum Corporation\" (You Lian Xiao Zi [2006] No. 280). 6.1.3 Strictly implement the production operation management system of \"four requirements and one card\", and prepare operation cards for oil storage and transportation. Each individual operation card should cover tasks such as oil reception, oil delivery, tank transfer, blending, raw material supply, additive addition, gauge reading, temperature measurement, sampling, dehydration, floating disk dehydration, oil tank heating, pipeline purging, starting and stopping of pumps and motors, and starting and stopping of agitators. 6.2 Interim Handover 6.2.1 Management Requirements for Interim Handover of Storage Tanks 1 After the completion of the storage tanks and their associated facilities, it is necessary to strictly comply with the regulations regarding the conditions for interim handover of projects. Interim handover procedures should be carried out in a timely manner when such conditions are met; storage tanks for which these procedures have not been completed shall not be put into use. 2 It must be carried out in strict accordance with the contents and conditions specified for intermediate project handover; neither the contents nor the conditions may be reduced. 3 Implement Document No. [2011] 99 of Oil Refining and Chemical Processing, namely the \"Regulations on the Management of Conditions for Interim Handover of Projects in Refining and Chemical Processing Projects of China National Petroleum Corporation\". 6.2.2 Intermediate handover conditions for storage tanks 1 The storage tanks shall be constructed in accordance with the design specifications. 2 A comprehensive inspection and acceptance of the project quality were carried out in accordance with the design documents and the \"Code for Construction and Acceptance of Vertical Cylindrical Welded Steel Storage Tanks\" (GB50128-2005), and the preliminary assessment of the project quality was found to be satisfactory. 3 The pressure testing, purging, cleaning, and airtightness testing of process and power pipelines have been completed, as well as the insulation work. 4 The electrical, instrumentation, gas protection, fire protection, explosion protection, fire fighting, and cathodic protection systems associated with the storage tank have been successfully tested and calibrated. 5 The “three inspections and four determinations” items that affect the commissioning of the storage tanks, as well as the design changes, have been completed. 6 The labeling of on-site equipment, facilities, and pipelines has been completed. 7 The temporary facilities at the construction site have been removed; the work is completed, all materials have been cleared, and the site is tidy. 8 The completion documents submitted by the construction unit are complete. 6.2.3 Contents of intermediate handover for storage tanks: 1. Check, verify, and hand over each item of the actual quantities involved in the project in accordance with the design specifications. 2 Review, acceptance, and handover of the preliminary evaluation documents on project quality as well as relevant commissioning records. 3 Inventory, inspection, and handover of specialized tools, spare parts, and materials. 4 Handover of relevant technical documents. 6.3 Safety inspections prior to commissioning 6.3.1 Safety inspections shall be carried out on storage tanks before they are put into use, in accordance with the provisions outlined in Oil Refining and Chemical Industry [2011] No. 11, \"Regulations on Safety Inspections Prior to Commissioning under the Sixteen HSE Management Provisions\". 6.3.2 A safety inspection should be conducted before the storage tank is put into use. Inspections include document reviews and on-site inspections, covering aspects such as process technology, equipment, safety and environmental protection, emergency response, fire protection, and personnel. 6.3.3 Key inspection points for the production technology specialty: 1. Process safety information (safety data sheets for hazardous chemicals, design criteria for process equipment, etc.) has been archived. 2 The operating procedures, commissioning plans, and process parameters have been approved and confirmed. 3 The Process Hazard Analysis or HAZOP analysis has been completed, and the recommended corrective actions have been implemented. 4 Process technology changes, including updates to process or instrumentation drawings, are approved and documented. 5 The production operation records have been established as required. 6.3.4 Key inspection points for equipment specialty 1: Process equipment shall comply with design specifications and installation standards. 2 Records of equipment operation, inspection, maintenance, and repair have been established as required. 3 All technical documents ensuring the safe operation of process equipment are ready. 4 The risks arising from equipment changes have been analyzed, and the operating procedures and emergency plans have been updated. 5 The identification of process equipment meets the requirements. 6.3.5 Key inspection points for safety and environmental protection: 1. Safety facilities shall meet the requirements of design specifications and installation standards. 2 The safety protection facilities meet the requirements, ensuring the safety and health of personnel. 3 The equipment for controlling emissions is functioning properly. 4 Emergency plans and emergency supplies shall meet safety requirements. 6.3.6 Key points for fire protection inspections 1: The fire protection system complies with design specifications. 2 The system functionality tests for fire protection facilities, as well as detection devices for flammable gases and toxic gases, have passed. 6.3.7 Key points for human resources inspection 1: All relevant employees have received training on HSE hazards, operating procedures, and emergency response knowledge. 2 New or transferred employees should be aware of the potential hazards associated with their new role and possess the skills necessary to perform it successfully. 6.3.8 The issues identified during the inspection are reviewed and classified as items that must be corrected or items that require correction; the relevant departments formulate corrective actions for these items and carry out follow-up verification. 6.3.9 The storage tank may be put into use only after all items requiring correction have been rectified, and monitoring measures as well as correction plans have been established for all items pending correction. 6.4 Commissioning Process 6.4.1 Confirmation of Commissioning Conditions 1 Confirm that the storage tank and its accessories are in good condition and functioning properly. 2 Ensure that the fire protection system is in good condition and that all necessary fire suppression equipment is available. 3 Verify that the tank’s level, temperature, high/low level alarms, and gas alarm are in good condition and operational. 4 Confirm that the blind plate status is correct according to the blind plate plan. 5 Verify that the process valves operate smoothly and are ready for use. 6 Verify that the process flow meets production requirements. 6.4.2 Commissioning: Before putting a storage tank into use, it is advisable to first purge it with nitrogen; the oxygen content inside the tank should be less than 8% (v/v) to be considered acceptable. 2 Before collecting oil in the nitrogen-sealed tank, the nitrogen sealing system must be activated first until the oxygen content inside the tank meets the required standards. 3 In cases of operational fluctuations such as startup/shutdown of production units or accident handling, the oil from the distillation outlet should not be directly fed into the storage tanks that are ready for use. 4 For the first time that oil is filled into a tank, it should be pumped in slowly from a tank of the same type, if conditions permit; the oil inflow rate should not exceed 1.0 m/s, until a very low liquid level is reached. 5 When the liquid level reaches the very low level, the flow velocity in the oil feed pipeline should not exceed 1.0 m/s. 6 Once the liquid level in the storage tank exceeds the very low level, the oil collection method can be adjusted according to actual production conditions, provided that the flow rate in the oil collection pipeline does not exceed 4.0 m/s. 7 Contact the instrument maintenance personnel to adjust the oil tank level gauges and thermometers for low and high levels respectively in a timely manner, to ensure their proper functioning. 8 Monitor the temperature indicators of the storage tanks, and take measures promptly if any values exceed the specified limits. 6.4.3 Inspections during commissioning 1 During the commissioning of the storage tank, it is necessary to regularly check for leaks at various connections such as flanges, valves, cleaning holes, and manholes on the tank wall. 2 Check that the floating disk of the floating roof tank rises and falls normally, and that the breather valve of the dome tank is functioning properly. 3 During the commissioning of the storage tank, it was checked that all instruments displayed normal readings.

The production preparation conditions provided here are quite comprehensive!

The answers on the first floor are quite comprehensive; before introducing oil, make sure to check all the sealing points of the storage tank carefully

**Have the relevant trial production approval procedures been completed? Have the legal inspections for pressure vessels, pressure pipelines, pressure accessories, etc. been completed? . . .

Without fire protection facilities, it won’t pass the fire safety inspection, right?