NEWs

The deodorization and passivation of the asphalt, heavy oil, low-quality oil, and sulfur workshop equipment undertaken by China Overseas Energy Technology in 2021 have been successfully completed

In March 2021, our company successfully won the bid for the 2021 major overhaul deodorization, passivation and cleaning project of China Overseas Energy Technology (Shandong) Co., Ltd. The project started on April 19, 2021 and was successfully completed on April 28, 2020.

After a production cycle, a large amount of ferrous sulfide H2S、 Oil stains, ammonia, and other organic pollutants adhere to the surface of the equipment and fill the interior of the equipment. The presence of these substances can easily cause equipment and personnel safety accidents such as spontaneous combustion of ferrous sulfide and personnel poisoning. As the equipment is turned on, media such as ammonia and H2S immediately overflow, and the H2S odor around the device is very strong, polluting the environment and posing a threat to the health of workers. It also poses a hidden danger to the safety operation of the production device during shutdown and major maintenance. In order to eliminate the occurrence of the above phenomenon and ensure the physical and mental health of personnel and equipment safety during the shutdown and maintenance period, it is necessary to carry out chemical cleaning of ferrous sulfide in the system after the shutdown and blowing of the device.

This passivation cleaning is another overall shutdown and maintenance after the overall shutdown of overseas projects in 2019.Sciengreen Company stood out among many competitors and successfully won the bid for the deodorization and passivation cleaning during the 2021 major maintenance. This cleaning involves four workshops of the China Overseas project, with more than 20 systems to be subdivided. The construction time is in April, which is the peak season for cleaning and also the period with the most shortage of personnel and equipment. In order to successfully complete this passivation cleaning operation, our company's technical personnel entered the site immediately after winning the bid to coordinate the selection of system partition interfaces and a series of details such as later construction, and formulated a detailed plan for personnel, equipment, and drug investment. A detailed cleaning plan has been developed and approved in advance, and various interface flanges have been prefabricated within the company to minimize the time required for passivation cleaning.

This cleaning specifically selected the FQX series high-efficiency ferrous sulfide cleaning and passivation agent independently developed by Sciengreen Company. This series of cleaning agents has been successfully applied in desulfurization units of petrochemical enterprises such as Dongming Petrochemical Group Hengchang Chemical, Hengrun Chemical, and Runze Chemical. This passivator is mainly composed of desulfurizer and auxiliary agent, which can effectively prevent the spontaneous combustion of ferrous sulfide in equipment and remove hydrogen sulfide in the system.

The maintenance time is tight and the task is heavy. The leaders of the factory and the group attach great importance to the maintenance work. After the cleaning node was determined, our company's equipment and personnel arrived at the cleaning site as soon as possible. The owner's safety supervision department provided sufficient safety education to the personnel, and all procedures and documents were fully processed. During the shutdown process, Party A's blowing was restricted, and the originally planned cleaning plan and divided processes for the four workshops to be completed within three days after the shutdown were disrupted. To this end, our policy has made changes to the system by carefully dividing personnel and ensuring that there are available personnel on site 24 hours a day. When equipment is handed over for cleaning in the workshop, we will arrive as soon as possible to ensure that the passivation of the device is completed within 12 hours after handover. During the process, the owner's personnel fully cooperated, and all systems completed the passivation operation within the specified time. After cleaning, there was no spontaneous combustion of ferrous sulfide, and the cleaning waste liquid was discharged in compliance with standards. The cleaning effect was unanimously recognized by the owner. Fully ensuring the safety of subsequent maintenance work. Our positive changes and quick response based on the project schedule and unexpected situations have received unanimous praise from the owners. At the same time, we have also gained mutual friendship through mutual cooperation, truly achieving a win-win situation.

In this cleaning, we adhere to the principle of "thinking what the customer thinks, being urgent to the customer's needs, and eliminating all worries", and make every effort to do a good job in the cleaning work. The owner also cooperates fully with the cleaning work based on the principle of "seeking truth from facts and being pragmatic". With the joint efforts of both parties, this cleaning was completed perfectly and efficiently. The customer's choice is their trust in us, and our task is to repay them with higher quality. The "Sciengreen" brand is constantly improving through high-quality services.