"Previously, after meeting standards, coke oven gas was vented, commonly known as 'lighting the sky.' Now, through purification, hydrogenation desulfurization, and liquefaction processes, we convert it into synthetic ammonia and LNG (liquefied natural gas), providing more stable and economical raw material support for companies like Nylon Chemical Company and Nylon Technology Company," said a company official on September 1.

It is understood that LNG is currently a mainstream low-carbon clean fuel; synthetic ammonia is not only a raw material for caprolactam and fertilizers but also considered a promising new zero-carbon fuel capable of large-scale replacement of fossil fuels due to its ease of storage and transportation. Both have broad market prospects.

In August 2023, the group, targeting the "dual carbon" goals and developing a circular economy, established Long'an Chemical Company. The company overcame more than ten technical challenges, including cold box freezing blockages caused by high heavy hydrocarbon content in raw gas. By the end of February this year, it successfully opened the entire production process and began trial production, currently processing 46,000 to 48,000 standard cubic meters of coke oven gas per hour.

To continuously improve the input-output ratio, the company conducts production anomaly handling drills and intensifies inspections of heat exchangers to ensure key production systems like circulating water operate optimally. In August, synthetic ammonia and LNG production reached historic highs, with LNG output exceeding the plan by 480 tons and liquid ammonia exceeding the plan by 580 tons.

Affected by insufficient downstream operating rates, both synthetic ammonia and LNG are in the off-season. The company insists on not engaging in price wars, winning by quality.

Focusing on the purification process, a key step to ensure product quality, the company has implemented advanced liquid nitrogen washing cold boxes to remove trace impurities from products and uses oil-free lubricated compressors to prevent impurities from entering the products. It also strives to enhance process control capabilities in the ammonia synthesis workshop, achieving synthetic ammonia purity of 99.99%.

At the same time, the company actively stabilizes prices and the market, strengthens communication within the industry and market analysis, forms an anti-"involution" alliance with Hydrogen Chemical Company and Hebei Jingbao New Energy Co., Ltd., and continuously expands incremental customers based on sustained improvements in internal customer satisfaction within the group. The company has identified Jiangsu, Anhui, and Hubei as key markets outside the province, established a high-quality customer resource database after surveys and visits, and formed stable cooperative relationships with 25 out-of-province enterprises to achieve production and sales balance.

Additionally, the company adjusts its product structure based on price fluctuations. Recently, with higher marginal profits for synthetic ammonia, the company has reasonably increased production loads for this product, further enhancing revenue and efficiency.