The world's largest coal gasification project under construction, Yulin Chemical's ethylene glycol gasifier, was successfully hoisted

The gasifier has a long manufacturing cycle and is difficult to transport. It is the core equipment of the entire gasification device. It adopts German technology and is manufactured by Dongfang Electric. The equipment itself weighs nearly 300 tons, and a crawler crane with a capacity of more than 1,200 tons is used for hoisting.

Shaanxi Coal actually chose Colin furnace. Is it an industrial scale-up test?

Recently, news came from Colin Future Energy Technology (Beijing) Co., Ltd. that after Shaanxi Coal Group Yulin Chemical Co., Ltd.'s coal-based separation and utilization of new materials demonstration project phase I 1.8 million tons/year ethylene glycol engineering gasification unit selected Colin's dry powdered coal gasification patented technology, Shaanxi Yulin Energy Group Co., Ltd.'s coal gasification process of the first phase 400,000 tons of coal-based 1.2 million tons/year ethylene glycol start-up project also decided to use this technology. These two pieces of news indicate that in the Yulin area of ​​Shaanxi Province where coal-water slurry occupies a dominant position, the Colin dry pulverized coal gasification process has suddenly emerged and has been recognized by coal chemical companies. Its advantages in economy, coal adaptability, energy conservation and environmental protection are being highlighted.

Kelin Company is a high-tech company focusing on the research and development, design, equipment manufacturing, construction and operation of air-flow bed gasification technology. The Kelin CCG dry pulverized coal gasification process developed by the company is at the world's leading level and has the advantages of strong adaptability of coal types, high efficiency, environmental protection, and low investment. In the past two years, it has gained increasing recognition in China's coal chemical industry. The 1.8 million tons/year ethylene glycol project in the first phase of the Shaanxi Coal Group Yulin Chemical Co., Ltd.'s coal quality utilization to produce new materials demonstration project and the 1.2 million tons/year coal-to-ethylene glycol project in Shaanxi Yulin Energy Group Co., Ltd. (the first phase of the 400,000 tons start-up) project currently under construction all use Kelin's CCG dry powdered coal gasification process. After entering the Chinese market, Kelin Company has continued to increase its innovation efforts and engineering service capabilities. “During the 13th Five-Year Plan period, a lot of improvements and innovations were made in equipment and technology. Based on the daily coal input of 1,500 tons, 2,000 tons/day and 3,000 tons/day furnace types were developed to meet the needs of the large-scale development of China's coal chemical industry. Since 2016, Kelin Company has carried out long-term research cooperation on coal quality and coal chemistry with Shanxi Coal Chemistry Institute, and has carried out research cooperation with Southeast University on various pulverized coal transportation methods under pressurized conditions. In 2019, Kelin Company signed a cooperation agreement with Shaanxi Coal Group to jointly develop a co-gasification technology project for coke powder and high-concentration organic waste liquid, providing a new solution for the effective utilization of high-concentration organic waste liquid in the coal chemical industry and energy conservation and emission reduction.

On January 23, Guizhou Kaiyang Chemical Co., Ltd. held the 2018 Colin dry pulverized coal gasification unit operation summary meeting. Kaiyang Chemical Coal Gasification Unit once again handed over a satisfactory report card.: In 2018, despite changes in raw coal, the online rate reached 100%, and the longest operating cycle of the gasifier reached 291 days, creating considerable economic effects for the company and reducing the cost of ammonia per ton by 150 yuan. At the summary meeting, Lu Chuanlei, general manager of Guizhou Kaiyang Chemical Co., Ltd., said: “The gasification device used in Kaiyang Chemical's annual 500,000-ton synthetic ammonia project is pulverized coal gasification technology imported from Germany. It uses two Colin gasifiers with a daily coal input capacity of 1,500 tons, and no equipment furnaces are installed. The syngas output of a single gasifier is 70,000Nm3/h, and the maximum syngas output is 95,000Nm3/h. The gasification unit was put into operation at the end of 2012. After more than a year of technical upgrades and optimization, we have developed a set of scientific and reasonable coal usage experience for the gasification of Guizhou's "three high" coal (high ash, high ash melting point, and high sulfur). By using Guizhou coal as the raw material for gasification, we have achieved long-term stable operation of the unit. Since 2013, the entire plant has not stopped due to the gasification unit. The annual operation time exceeds 330 days, and all gasification process indicators have met or exceeded the design indicators. ” The completion and commissioning of the device and its long-term stable operation have provided a demonstration role for the clean and efficient utilization of low-quality coal across the country. The industry also generally believes that the Colin furnace has unique advantages in gasifying "three high" low-quality coal. However, due to the tight supply of local coal in Guizhou in 2018, Kaiyang Chemical had to purchase some bituminous coal from Shaanxi and Inner Mongolia, which brought new challenges to Kaiyang Chemical. However, after one year of operation, the Kelin gasifier not only did not suffer from indigestion due to the change of raw coal types, but also performed better in terms of cost reduction, efficiency increase, and quality improvement, and the operation of the device achieved new successes. “This stove can not only handle the "three high" coals with poor coal quality, but also performs better in handling bituminous coal, regardless of thickness. The change in raw coal not only did not affect normal production or increase costs, but created considerable economic effects for the company, reducing the cost of ammonia by about 150 yuan per ton. This gives us more confidence in the company's operations this year. ” Lu Chuanlei said.