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The sulfur recovery and acid production unit of Lunan Chemical’s coal chemical project, with a total investment of 2.6 billion yuan, has been put into operation. Author/Source: Gasification World Date: 2023-03-02 Clicks: 10 Recently, the acidic gases from Lunan Chemical Co., Ltd.’s sulfur recovery and acid production project were successfully fed into the furnace, and the sulfur recovery and acid production unit of the integrated energy-saving and carbon-reduction project related to the caprolactam production chain was also brought online successfully on its first attempt. The sulfur recovery acid production unit is an environmental protection device as part of Lunan Chemical’s integrated energy-saving and carbon-reduction project for the caprolactam production chain. It features a short process flow, a sealed operation system, low consumption, and high-quality products. It adheres strictly to all current regulations and standards, ensuring that the exhaust gases are discharged in compliance with environmental requirements. The Lunan Chemical caprolactam industry chain’s energy-saving and carbon-reduction integrated project has seen the addition of a new OMB multi-nozzle pulverized coal gasifier with a coal feeding capacity of 3,000 tons per day; this device replaces the existing Texaco gasification unit on site. Additional facilities such as shift reactors, gas purification systems, synthesis units, wet acid production from waste gases, and liquid carbon dioxide production systems have also been installed. Meanwhile, the 300,000-ton caprolactam production facility has been expanded and upgraded, increasing its caprolactam production capacity to 400,000 tons per year. The Lunan Chemical’s caprolactam energy-saving and carbon-reduction integrated project utilizes the OMB new type multi-nozzle pressurized coal gasification technology, which was developed jointly by Shanneng, Huali, and Tianchen and features independent intellectual property rights; it is the first four-nozzle coal gasification furnace of its kind in China. Compared to the original water-coal slurry gasification technology, the content of useful gases increases by 10%. This technology boasts advantages such as wide adaptability to different coal types and low consumption; it effectively increases the proportion of coal used in this facility, enables the upgraded utilization of blended coal and raw coal, and significantly reduces the cost of coal used for gasification. It holds great significance for the implementation of China’s clean energy strategy. The integrated energy-saving and carbon-reduction project for the caprolactam industry chain under construction has a total investment of 2.671 billion yuan. Construction began in May 2022, and it is now in the equipment installation phase, with trials scheduled to take place by the end of the year. This project is a high-chain engineering initiative for caprolactam, and it also serves as an industrial demonstration facility for OMB’s multi-nozzle opposed coal gasification technology. Once completed and put into operation, it will enable the improved utilization of lower-grade coal, filling the gap in China’s technology for gasifying low-quality feedstocks. It holds great significance as a model for the improved utilization of feedstock coal in the chemical plants of Shandong Energy Group in Shaanxi, Inner Mongolia, Xinjiang, and other regions, as well as for achieving clean and efficient production processes.