Yunnan Tianan Chemical Co., Ltd.’s AP gasification furnace achieved 249 days of continuous operation at full load and Class A performance over a long period of time

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Yunnan Tianan Chemical Co., Ltd.’s AP gasifier achieved 249 days of continuous operation at full capacity and grade A performance over an extended period. Author/Source: Coal Chemistry News. Date: June 27, 2019. Clicks: 80. As of May 26, 2019, prior to the company’s scheduled comprehensive maintenance, Yunnan Tianan Chemical Co., Ltd.’s AP gasifier managed to operate continuously at full capacity and at grade A for 249 days. In 2004, Yunnan Tianan Chemical Co., Ltd. signed an agreement for the transfer of the AP gasification technology (formerly Shell gasification technology) to produce synthetic ammonia using local anthracite, thereby serving downstream phosphate fertilizer plants. The design capacity of the AP gasifier is 140,000 cubic meters per hour of effective gas, enabling the plant to produce 500,000 tons of synthetic ammonia per year. The project was successfully commissioned in 2008, its performance was evaluated in 2010, and it achieved stable, continuous, and optimal operation by 2012. To date, Tianan Chemical has won the Best Operation Award awarded by patent holders for seven consecutive years. In particular, in 2017 the plant achieved an annual production of 542,700 tons of synthetic ammonia (108% of its designed annual capacity). In 2018, even after undergoing a 40-day major maintenance period, the plant still managed to reach an annual production level of over 500,000 tons of synthetic ammonia, as per the design specifications. After Yunnan Tianan Chemical started operating successfully, Yuntianhua Group subsequently invested in two more units using AP gasification technology (Yuntianhua Shuifu (waste boiler process) and Hulunbuir Jinxin (downstream quenching process)). The Shuifu project has been in operation since 2012, and since 2014 it has won the Best Operation Award awarded by the patent holder for four consecutive years ； The Jin Xin project went into operation on June 18, 2016; that same year it achieved an online rate of over 90%, and was awarded a special prize for optimal operation by the patent holder. In 2017/2018, it received the award for optimal operation from the patent holder for two consecutive years. In May 2018, Air Products acquired Shell’s gasification business. In recognition of Tianan Chemical’s achievement of operating the AP gasifier at full capacity for a long period of time, with 249 days of continuous operation at grade A, Air Products (Beijing) Technology Development Co., Ltd. sent a congratulatory message to Tianan Chemical’s customers, stating that it would continue to provide technical support to customers using the AP gasification technology and work together to achieve further progress. Excellent technology can perform even better when operated by a top-notch team. According to statistics from 2016 to 2018, each year more than 15 customers achieved optimal performance and were awarded the Best Performance Award by the patent holder. Moreover, as experience in running projects grows, optimal operation will become the norm across more clients. It can be seen that the AP gasification technology helps coal chemical projects to operate at full capacity for extended periods, with low oxygen and coal consumption as well as high conversion rates, thereby achieving the goals of \"safety, stability, longevity, full capacity, and excellence\" in chemical operations.