The absorption tower for the 1,349-ton coal-coke hydrogen production unit at the Zhenhai base was hoisted into place

22222222222222

This should be the second set ====================== On January 31, 2019, Zhenhai Refining & Chemical’s newly built coal-coke hydrogen production unit was successfully commissioned for the first time, producing qualified hydrogen that was integrated into the plant’s overall hydrogen system. This facility is China’s first hydrogen production plant for coal and coke using domestically developed high-pressure water-coal slurry technology, and its successful commissioning is of great significance. Designed to produce 120,000 standard cubic meters of hydrogen per hour, this facility will play a key role in ensuring the production of clean products such as those meeting National VI standards at Zhenhai Refining & Chemical Co., Ltd.

The equipment from three years ago was still lifted in sections

Question: What technology is commonly used in domestic coal and coke-based hydrogen production plants? Answer: Domestic coal and coke-based hydrogen production plants generally use technology imported from abroad. Question: What technology is used in this device? Answer: It is a Sinopec-owned technology developed through collaboration between Sinopec and East China University of Science and Technology. Question: Are there any technical advantages? Answer: Compared with similar technologies, \"two highs, two lows, and one long\" features high gasification efficiency, high effective gas yield, low coal consumption, low oxygen consumption, and a long service life for refractory bricks.

On February 20, the No. 1 vaporizer in Zhenhai Refining & Chemical’s coal-coke hydrogen production unit was successfully fed with material, producing qualified hydrogen that was fed into the pipeline network, thus officially initiating operation in a dual-vaporizer mode. On January 30, after the successful feeding of the second vaporizer in the coal-coke hydrogen production unit, the staff on duty made every effort to ensure its smooth operation. This device is part of the headquarters’ “Ten Dragon Key Project”; many of the technologies used are being applied for the first time, with no existing experience to draw on. Moreover, it was launched during the Spring Festival holiday, preventing suppliers from providing timely technical support, which placed great pressure on ensuring smooth operations. The equipment team took initiative without waiting for instructions or relying on others; they conducted thorough research and repeated tests, and successfully resolved various challenges such as blockages in the inlet ducts of the coal mills, blockages in the air cooling systems for syngas, crystallization-induced blockages in the ammonia-containing wastewater pipelines, and high vibration levels in the methanol-poor pumps. While ensuring the stable operation of Reactor No. 2, it laid a solid foundation for the commissioning of Reactor No. 1. To successfully complete the production targets for March, Zhenhai Refining & Chemical decided to put the second gasifier into use. Drawing on previous experience and the characteristics of the facility, the team developed a detailed feeding plan, thereby enabling the operation in a \"dual-furnace\" mode. To date, the device has been operating stably for over 20 days, supplying nearly 2,400 tons of hydrogen to the company, thus initially achieving the goal of stable operation. (Source: Sinopec News Network)

On February 10, 2020, the total amount of hydrogen produced by Zhenhai Refining & Chemical’s coal-coke hydrogen production unit exceeded 60,000 tons. This device is part of Sinopec’s “Ten Dragon” key project; it began operation on January 31 last year and successfully produced qualified products. At the end of last year, it passed the expert evaluation conducted by the group company’s Science and Technology Department, thus completing the project successfully. Over the past year since the device began operating, its maintenance team has taken the initiative to tackle challenges head-on, carefully identify potential risks, and work to resolve them one by one. Recently, the plant team, in collaboration with relevant functional departments, has successively resolved issues such as blockage at the outer ring end face of the burner, poor quality of coal slurry, and corrosion in the shift condensate pipelines, thereby ensuring the stable operation of the plant. Since the Spring Festival, there has been a shortage of water-coal slurry additives for the plants; these additives need to be supplied to the plants continuously on a 24-hour basis, and any interruption in supply will result in the plants having to stop operating. Together with the Procurement Center, the Ministry of Chemical Industry actively contacts manufacturers, adjusts production capacity and workforce arrangements, and ensures continuous operation of the facilities while implementing epidemic prevention measures. Furthermore, building on the successful 75% coke blending tests conducted in single reactors earlier on, the plant began actual coke blending operations on February 4th, thereby resolving the issue of difficulties in shipping petroleum coke. At present, the plant is operating steadily, producing 81,000 standard cubic meters of hydrogen per hour. The coal coke hydrogen production unit utilizes technology independently developed by Sinopec. As an important unit in the project cluster aimed at restructuring, upgrading, and improving the operations of the old areas at Zhenhai Refining & Chemical Company, this facility was under EPC general contracting by Ningbo Engineering Company. The first pile was driven on August 16, 2016; construction was completed on December 28, 2018, and the facility was successfully commissioned on January 31, 2019, on the first attempt. Article source: Sinopec News

This post was last edited by Desert Fish on 2020-10-8 at 19:13:333333333

Which technology is used for PSA?

Learn together*, improve together! Happy communication, happy sharing!