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What was the record of high-load, continuous, and stable operation of coal gasification units in China in 2017?

2017-11-21 View Original

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Yahua Consulting: What was the record of high-load, continuous, and stable operation of coal gasification units in China in 2017? Author/Source: Date: 2017-11-17 Clicks: 39 This article is an original piece by Yaha Consulting. If you wish to reproduce it, please obtain permission from this account first or indicate the source. From 2017 to 2021, China will add 27.7 million cubic meters per hour of syngas production capacity, which is equivalent to 236 dry coal powder gasification units with a coal feeding rate of 2,000 tons per day. How can investment in gasification facilities be reduced and the performance of these gasification units improved? Please note that the operation data of the gasification unit mentioned in this article comes entirely from public reports and is provided for readers’ reference only; Yahuaxun Consulting does not guarantee the timeliness or accuracy of such data. The stable and high-load operation of the gasifier is crucial for the profitability of coal chemical plants. China currently has nearly a thousand gasification units in operation, and as of October 2017, the total synthetic gas production capacity exceeded 30 million cubic meters per hour. What progress was made in 2017 in terms of the high-load, continuous, and stable operation of coal gasification units in China? ——Water-coal slurry gasification: As of July 27, 2017, the gasification unit at the methanol facility of Shaanxi Pucheng Clean Energy Chemical Co., Ltd. had been operating continuously at high load for 378 days. The project utilizes GE’s coal slurry gasification technology, with a capacity of 1.8 million tons per year for coal-to-methanol production, 700,000 tons per year for methanol-to-olefins production, 300,000 tons per year for polyethylene production, and 400,000 tons per year for polypropylene production. The gasification unit was successfully fed with material on October 26, 2014. As of May 16, the gasification unit at Qilu Petrochemical’s Second Fertilizer Plant had been in continuous operation for 777 days, setting another world record for long-term operation. This gasification unit utilizes GE’s water-coal slurry gasification technology and was completed in October 2008; it produces hydrogen as well as providing raw materials for the butyl octanol plant. ——Dry coal powder gasification: As of July 28, the aerospace furnace at Xinjiang Zhongneng Wanyuan Chemical Co., Ltd. had been in operation continuously for 360 days, setting a world record for the longest continuous operation time (Grade A) using gas flow bed gasification technology. The project utilizes one 3200/3800 large-scale gasification furnace, with a capacity of 400,000 tons per year for synthetic ammonia and 600,000 tons per year for urea. On August 16, 2015, the gasification unit was able to operate on a full scale. ——Fixed-bed gasification: In September 2017, it was learned that Jinnan Tianqing Coal Company, through two months of testing, achieved a maximum operating load of 10,000 Nm3/h for its coal pulverization pressurized gasification furnace, setting a record for the load capacity of such furnaces in China. Jinmei Tianqing Company has a total of 6 coal gasification furnaces using pressurized gasification; its annual production capacity is 180,000 tons of synthetic ammonia, 300,000 tons of urea, and 500 million cubic meters of industrial gas. The entire production process was put into operation in March 2015. As of April 14, 2017, the #6 BGL gasifier at China Coal Ordos Energy Chemical Co., Ltd.’s Tuketag large-scale fertilizer production project had been in operation for 208 days, setting a new record once again – exceeding the previous record of 205 days for the #8 gasifier in January 2017. The first phase of the project involves an annual production capacity of 1 million tons of synthetic ammonia and 1.75 million tons of urea, with 7 BGL gasification units to be built; the entire production process was brought online on February 1, 2014. In summary, China’s coal gasification technology, operational experience, and equipment are becoming increasingly mature, continuously setting new world records for high-load, continuous, and stable operation. In the next 5 years, China will continue to see development in areas such as coal-to-oil, coal-to-olefins, coal-to-natural gas, coal-to-methanol, coal-based large-scale ammonia production, coal-to-ethylene glycol, coal-to-hydrogen, and coal-to-ethanol. Research by Yahuazheng Consulting shows that between 2017 and 2021, new coal gasification projects in China will add a synthetic gas production capacity of 27.7 million cubic meters per hour, which is equivalent to 236 gasifiers capable of processing 2,000 tons of dry coal powder per day. This will continue to create a strong demand for coal gasification technologies and equipment. http://img.yf116.cn/image/img/20171117/112110408707.jpg Patent holders of gasification technology, manufacturers of equipment and instruments, as well as engineering companies are facing three major challenges while continuing to encounter significant market opportunities. 1. The investment in the gasification unit accounts for a significant portion of the total investment in coal chemical projects; how can the cost of gasification facilities be reduced? 2. The stable and high-load operation of the gasifier is crucial for the profitability of coal chemical plants; how can the performance of the gasifier be improved? 3. Gasification technology is evolving toward higher energy efficiency, larger scale, and greater adaptability to various types of coal – what new requirements will this impose on equipment and instrumentation manufacturers? The 2017 China Coal Gasification Technology, Operational Experience and Equipment Forum, organized by Yahuazhengxun, will be held in Zhuhai from December 21-22. The conference will invite coal chemical manufacturing enterprises, as well as companies specializing in coal gasification technology, engineering, and equipment, to discuss the prospects for coal chemical projects in China and the future of the coal gasification market. Topics to be covered include the matching of coal gasification technology with downstream products, experiences in operating gasification units at high loads over extended periods and aspects related to daily management, advanced equipment and instruments for optimizing the performance of coal gasification processes, environmental protection strategies for coal gasification units and the treatment of waste materials, as well as the development trends of next-generation coal gasification technologies.
Reply #2 2017-11-21
Continuous operation of a water-coal slurry gasifier means that the furnace is in operation without interruption, right? Is the space furnace the same?
Reply #3 2017-11-30
Our Ende gasification furnace has been running continuously for a year; alas! It’s not right to say that backward technology is fine
Reply #4 2017-11-30
Why are the first few values the operation time of the plant, while for China Coal Ordos it becomes the operation time of a single furnace? The statistical benchmarks are different!
Reply #5 2017-12-08
The water-coal slurry furnace type should refer to the continuous operation time of the entire gasification unit; no breakthroughs have yet been achieved in terms of the operation time per furnace. Both coal-fired boilers and BGL boiler types should refer to the A-grade continuous operation time per unit boiler. The statistical basis is indeed inconsistent
Reply #6 2017-12-11
GE’s operation is really amazing; how is continuity calculated? Does consecutive betting count? How did they deal with clogged water pipes over such a long period of time?
Reply #7 2017-12-13
The continuous operation of this type of water-coal slurry process is determined by whether the plant continuously produces syngas, which serves as the indicator for long-term operational performance, rather than based on the operation of a single furnace. For example, the operation mode of a water-coal slurry gasification unit in a certain plant is 2 in service and 1 standby; as long as one of the two operating gasifiers is functioning, the unit continues to produce syngas, and it is classified as category A for continuous operation. If both operating furnaces come to a stop, the plant ceases to produce syngas; however, if gas production is resumed within 24 hours, it is classified as a Category B continuous operation record. This is the standard practice for operation statistics of such factories. Although there is a slight difference from the typically long operating records of other types of technologies, this is also reasonable.

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