Catalyst loading scheme:

Preparatory work before loading the agent: (1) The isolation, drying, and hot-state testing of the reaction system have been completed. (2) The equipment and supplies required during the catalyst loading process (loading tools, hoppers, etc.) have been prepared in full according to the detailed list. (3) A temporary rain shelter has been set up at the site; the catalyst, ceramic balls, and protective agents have been delivered to the site as required, and a dedicated person is responsible for sorting and counting them. (4) All personnel involved in the catalyst loading are in place, and the personnel and equipment from the catalyst loading/unloading company are also available. (5) The lining work inside the reactor has been completed, and the catalyst filling diagram is placed on site. (6) The internal components of the reactor have been installed and verified to be correct; the work of removing components required for catalyst installation has been completed. (7) All thermocouples in the reactor have been removed. (8) A designated person shall enter the reactor to inspect the following items, and the inspection must be successful: a. Check whether the grilles, distribution plates, and cold hydrogen tanks are installed in accordance with the requirements. Whether the cold hydrogen tank is clean, and whether the installation conditions such as horizontal leakage meet the requirements. b. Check whether the reactor outlet collector and the discharge port baffle are installed correctly, whether there is any blockage in the outlet collector, whether the screws are securely fastened, and whether the stainless steel mesh is intact. c. The rapid cooling hydrogen nozzle is unobstructed, with uniform airflow distribution. d. The oxygen content in the gas sample taken from the reactor must be at least 20% to be considered acceptable. Work inside the equipment is only permitted after passing the test (going forward, whenever work is suspended for more than 24 hours, sampling and analysis must be conducted again before resuming work, and work can continue only after passing the test). e. Effective measures should be taken to protect the sealing surfaces of the top of the reactor and other removed flanges; apply grease to the surfaces and cover them with temporary lids. f. Thoroughly carry out cleaning inside the equipment, and carefully inspect the internal component grilles, distribution plates, cold hydrogen tanks, outlet collectors, and discharge pipes. g. Set up temporary rain shelters at the catalyst loading site and on top of the reactor to protect against rain. 9.4.1 Catalyst loading should be carried out on a sunny day; the catalyst must be kept from getting wet during this process. The container containing the catalyst can be opened only at the time of loading, and efforts should be made to minimize the time the catalyst is exposed to air ； When the catalyst loading work is interrupted due to rain, the reactor head must be covered with a temporary cover and tarpaulins. 9.4.2 During catalyst charging, purge with instrument air; the purge air must flow upward to maintain a flow velocity of approximately 0.3 meters per second at the top manhole. The purge gas should enter the reactor just above the bed being charged, and it is not allowed to flow through the catalyst bed. Purified air is supplied into the reactor to maintain a slightly positive pressure inside it, thereby preventing wet air from entering the catalyst bed. 9.4.3 Due to the fragility of the catalyst, its free fall height should not exceed 1 meter. People entering the reactor must not step on it; instead, a wooden board measuring at least 550mm×550mm should be used as a stepping stone. 9.4.4 The catalyst must not be damaged during loading; the catalyst container shall not be tilted excessively during handling and weighing, and rolling is strictly prohibited ； At the same time, during the loading process when pouring catalyst into the catalyst lifting bucket, it is necessary to verify that its type and quality meet the requirements. If any discrepancies in color or specifications are detected, or if the catalyst is clumped, deteriorated, or severely damaged, it must be reported to the relevant personnel promptly. 9.4.5 During the catalyst loading process, the loading rate should be controlled at around 3 tons per hour; it should not be too fast to prevent the catalyst from breaking or forming bridges. 9.4.6 The loading personnel shall not bring items unrelated to this task, in order to prevent foreign objects, especially those harmful to the catalyst, from falling into the catalyst bed. 9.4.7 During the catalyst loading process, a dedicated person should provide unified supervision. It is necessary to accurately record the type of catalyst used, the loading time, and the loading weight according to the catalyst loading plan, in order to prevent incorrect or mixed loading of catalysts. 9.4.8 When the distance between the reactor thermocouple and the catalyst bed height is around 500 mm, arrange for the thermocouple to be installed ； The thermocouple must be fully inserted into the thermocouple slot, and it is strictly prohibited to stand on the thermocouple while applying material, in order to prevent it from bending. 9.4.9 When installing the internal components of the reactor, especially the distribution plates, it is necessary to carefully check the specifications and models of the bubbles on these distribution plates to prevent incorrect installation. Additionally, it is important to thoroughly inspect the level of installation and the sealing condition of both the distribution plates and the cold hydrogen tank. The cold hydrogen tank must be cleaned thoroughly before it is repositioned, and when installing the cold hydrogen pipes, it is essential to ensure that their openings face straight downward. 9.4.10 During the filling process, it is necessary to ensure the personal safety of those involved in the filling, especially those entering the reactor. Relevant personnel must wear appropriate protective equipment, and those inside the reactor should have a way to communicate with those outside, with regular checks being made on their condition. (1) The isolation, drying, and hot-state testing of the reaction system have been completed. (2) The equipment and supplies required during the catalyst loading process (loading tools, hoppers, etc.) have been prepared in full according to the detailed list. (3) A temporary rain shelter has been set up at the site; the catalyst, ceramic balls, and protective agents have been delivered to the site as required, and a dedicated person is responsible for sorting and counting them. (4) All personnel involved in the catalyst loading are in place, and the personnel and equipment from the catalyst loading/unloading company are also available. (5) The lining work inside the reactor has been completed, and the catalyst filling diagram is placed on site. (6) The internal components of the reactor have been installed and verified to be correct; the work of removing components required for catalyst installation has been completed. (7) All thermocouples in the reactor have been removed. (8) A designated person shall enter the reactor to inspect the following items, and the inspection must be successful: a. Check whether the grilles, distribution plates, and cold hydrogen tanks are installed in accordance with the requirements. Whether the cold hydrogen tank is clean, and whether the installation conditions such as horizontal leakage meet the requirements. b. Check whether the reactor outlet collector and the discharge port baffle are installed correctly, whether there is any blockage in the outlet collector, whether the screws are securely fastened, and whether the stainless steel mesh is intact. c. The rapid cooling hydrogen nozzle is unobstructed, with uniform airflow distribution. d. The oxygen content in the gas sample taken from the reactor must be at least 20% to be considered acceptable. Work inside the equipment is only permitted after passing the test (going forward, whenever work is suspended for more than 24 hours, sampling and analysis must be conducted again before resuming work, and work can continue only after passing the test). e. Effective measures should be taken to protect the sealing surfaces of the top of the reactor and other removed flanges; apply grease to the surfaces and cover them with temporary lids. f. Thoroughly carry out cleaning inside the equipment, and carefully inspect the internal component grilles, distribution plates, cold hydrogen tanks, outlet collectors, and discharge pipes. g. Set up temporary rain shelters at the catalyst loading site and on top of the reactor to protect against rain. 9.4.1 Catalyst loading should be carried out on a sunny day; the catalyst must be kept from getting wet during this process. The container containing the catalyst can be opened only at the time of loading, and efforts should be made to minimize the time the catalyst is exposed to air ； When the catalyst loading work is interrupted due to rain, the reactor head must be covered with a temporary cover and tarpaulins. 9.4.2 During catalyst charging, purge with instrument air; the purge air must flow upward to maintain a flow velocity of approximately 0.3 meters per second at the top manhole. The purge gas should enter the reactor just above the bed being charged, and it is not allowed to flow through the catalyst bed. Purified air is supplied into the reactor to maintain a slightly positive pressure inside it, thereby preventing wet air from entering the catalyst bed. 9.4.3 Due to the fragility of the catalyst, its free fall height should not exceed 1 meter. People entering the reactor must not step on it; instead, a wooden board measuring at least 550mm×550mm should be used as a stepping stone. 9.4.4 The catalyst must not be damaged during loading; the catalyst container shall not be tilted excessively during handling and weighing, and rolling is strictly prohibited ； At the same time, during the loading process when pouring catalyst into the catalyst lifting bucket, it is necessary to verify that its type and quality meet the requirements. If any discrepancies in color or specifications are detected, or if the catalyst is clumped, deteriorated, or severely damaged, it must be reported to the relevant personnel promptly. 9.4.5 During the catalyst loading process, the loading rate should be controlled at around 3 tons per hour; it should not be too fast to prevent the catalyst from breaking or forming bridges. 9.4.6 The loading personnel shall not bring items unrelated to this task, in order to prevent foreign objects, especially those harmful to the catalyst, from falling into the catalyst bed. 9.4.7 During the catalyst loading process, a dedicated person should provide unified supervision. It is necessary to accurately record the type of catalyst used, the loading time, and the loading weight according to the catalyst loading plan, in order to prevent incorrect or mixed loading of catalysts. 9.4.8 When the distance between the reactor thermocouple and the catalyst bed height is around 500 mm, arrange for the thermocouple to be installed ； The thermocouple must be fully inserted into the thermocouple slot, and it is strictly prohibited to stand on the thermocouple while applying material, in order to prevent it from bending. 9.4.9 When installing the internal components of the reactor, especially the distribution plates, it is necessary to carefully check the specifications and models of the bubbles on these distribution plates to prevent incorrect installation. Additionally, it is important to thoroughly inspect the level of installation and the sealing condition of both the distribution plates and the cold hydrogen tank. The cold hydrogen tank must be cleaned thoroughly before it is repositioned, and when installing the cold hydrogen pipes, it is essential to ensure that their openings face straight downward. 9.4.10 During the filling process, it is necessary to ensure the personal safety of those involved in the filling, especially those entering the reactor. Relevant personnel must wear appropriate protective equipment, and those inside the reactor should have a way to communicate with those outside, with regular checks being made on their condition.

Thank you. We’re about to start catalyst loading as well; it’s a good opportunity to learn*.

How is the final dust blown away?