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At 08:08 on August 3, the sulfuric acid produced by the 30,000-ton/year waste acid regeneration unit associated with Fujian United Petrochemical Company passed the quality testing; its concentration was 98.17%, meeting the design specifications. The successful operation of this waste acid regeneration unit from the first batch of feedstock indicated that the entire process of the newly built alkylation project was now operational! Since the successful commissioning of the alkylation unit on July 19, all the staff involved continued to work hard, and within just eight days they completed various tasks such as the installation of high-temperature filter elements, the filling of catalysts in the converters, and the replacement of the fixing strips on the electrostatic mist eliminators, thereby ensuring that the unit’s operation progressed as scheduled. During the production preparation phase, to ensure a successful first start-up of the facility, the Refining Business Team 2 carried out systematic efforts in areas such as production preparation, safety and environmental protection, equipment management, and personnel training. They organized the compilation of a \"Production Preparation Outline\" to prepare for the trial operation with feedstock introduction ； The alkylation unit and various functional departments work in close coordination, adhering to high standards and strict requirements in carrying out tasks such as \"three inspections and four determinations,\" individual unit tests, sequential commissioning, and joint trials. They address any issues related to the testing and debugging of equipment prior to the unit’s operation, ensuring its smooth functioning. During the project’s commissioning phase, the relevant departments of the company worked together closely and as a unified team, holding daily follow-up meetings to address key challenges and promptly coordinating solutions to any problems that arose during the commissioning process. The project team from the Mechanical Equipment Department, various specialized teams such as those responsible for electrostatic detectors, process engineers and design specialists from the Technology and Planning Department, safety engineers and process safety teams from the HSE Department, as well as the Supply and Logistics Department, all worked overtime to overcome difficulties during the commissioning process, contributing to the successful startup testing. The Sinopec expert team and the plant staff conducted joint discussions to strictly monitor key stages, promptly identify and address any issues that arose during the commissioning process, thereby ensuring that the testing activities progressed in a steady and orderly manner. At present, the commissioning of the alkylation and spent acid regeneration units has achieved partial success. The Refining Team 2 will continue to maintain a humble attitude, work diligently to ensure the safe operation of these units and to optimize their performance, so as to maximize the efficiency of the alkylation units and make due contributions to the company’s high-quality development. It is reported that the 30,000 tons per year waste acid regeneration unit utilizes P&P Company’s \"wet\" regeneration technology. It is built to support the alkylation unit; by burning the waste acid, cooling the pyrolysis gas, removing dust, converting the pyrolysis gas, and condensing it to form acid, it produces 98wt% concentrated sulfuric acid, which supplies catalysts to the alkylation unit on a continuous basis.