[Haichuan Chemical News] Completion of the hydrogen production upgrade project for Zhongrong Xinda Tiejiong Xinsha PSA plant
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Recently, the PSA hydrogen production upgrade project at Tiesiong Xinsha was successfully completed, officially entering the process commissioning phase and being ready for operation. The renovation project involves adding 8 adsorption towers to the existing PSA hydrogen production unit; as a result, two separate systems with 10 adsorption towers each are created, enabling a production capacity that doubles to 20,000 Nm?/h.
It is understood that the newly upgraded system takes into account both the safety and stability of the system, while also enhancing the intelligent control of the process equipment, thereby enabling more efficient controlled management and reducing the workload on employees. The newly built PSA unit features a double-layer valve frame structure, offering ample maintenance space and flexible operation modes. It can carry out hydrogen extraction either by using only vent gas or coke oven gas, or by utilizing the hydrogen-rich gas generated during the startup of the LNG unit. After the renovation, by using a mixture of coke oven gas and flare gas for hydrogen extraction, the hydrogen extraction capacity was doubled to 20,000 Nm?/h, laying a solid foundation for achieving the annual targets. It is worth noting that the increase in production capacity has not led to an increase in the number of employees; the existing staff are sufficient to manage both systems simultaneously.
Shandong TieXiong XinSha Energy Co., Ltd. was officially established on August 8, 2007, with a registered capital of 1.15 billion yuan. It is an energy joint-stock company established jointly by four well-known large-scale enterprise groups: Shandong Tiejiong Metallurgical Technology Co., Ltd., which is affiliated with Shandong Coking Group Co., Ltd.; Jiangsu Shagang Group Co., Ltd.; Jiangsu Yonggang Group Co., Ltd.; and Xinwen Mining Group Co., Ltd. Among them, Jiangsu Shagang Group Co., Ltd., Shandong TieXiong Metallurgy Technology Co., Ltd., and Xinwen Mining Group Co., Ltd. hold shares in the proportions of 38.96%, 31.04%, 15% and 15% respectively. The construction site for the Tiejiong Xinsha project is located in the Tianqiao Coal Chemical Industry Base in Juye County.
On March 12, the PSA hydrogen extraction upgrade project, undertaken by Chengdu Saipuixing Technology Co., Ltd., resumed full-scale construction. Workers are currently working on the installation of the instrument control systems and pipelines. This marks the fact that all the major projects under construction at Zhongrong Xinda Tiejiong Xinsha have resumed work, signaling the start of project construction activities for this enterprise. At present, as the pandemic situation improves and the pace of resuming work and production accelerates, all the major projects under construction, such as the fire protection system renovation for Phase 1 of Tiejiong Xinsha and the regular venting systems for coke dry quenching, have been launched, with construction workers arriving on site in batches. Affected by the pandemic, the project construction was delayed to varying degrees. The contractor addressed this by carefully planning the construction schedule and adopting scientific approaches; in addition, a dedicated team for project construction was established in collaboration with the company’s relevant departments, which focused on on-site supervision, safety management, and construction quality control, all in order to ensure that the project was completed to the required standards and quality.
Where is hydrogen energy mainly used?
That means there’s a surplus of over 4,000 units of hydrogen!
The newly built PSA unit features a double-layer valve frame structure; there are no images available, so it’s not clear what this structure looks like ?
Per hour or per day? 4,000 cubic meters per hour is indeed a significant figure; the daily volume can reach 80,000 cubic meters. ======================= By adding 8 more adsorption towers, the system can be modified to operate with two sets of towers, resulting in a production capacity of 10 adsorption towers working in parallel. This doubles the hydrogen production capacity, reaching 20,000 Nm?/hour.
I saw a message about using hydrogen for steel reduction – could steel mills use it for this purpose?