What is the current status of the first-generation Ruchi furnace (pressurized gasification furnace) in use in China?
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Does anyone know the current usage of the fourth-generation Ruchi furnace (pressurized gasification furnace) in China? How many sets of devices are currently using the fourth generation? Thank you!
Shanxi Fertilizer Factory has four sets, while Henan Yima Gasification Factory has six sets
Fourth-generation Ruchi furnace (pressurized gasification furnace)? What are the structural features? How is it being used?
What is the maximum operating pressure of the Lurgi gasifier?
It is said that the BGL furnace is an improvement over the LURGI furnace; so which of these two furnaces is better? Which gentleman has a comparison of the structure and performance of these two types of furnaces?
Luan coal-based oil, China’s first coal indirect liquefaction project, uses Lurgi gasification
It is understood that the fourth generation of Lurgi gasifiers has not been strictly classified; rather, some ultra-high pressure gasifiers were developed after the third generation. When it comes to third-generation gasifiers, the manufacturers for which conversion calculations are carried out mainly include the following: Yunnan Jiehua has over 10 such gasifiers, some of which have been converted to BGL type; Shanxi Fertilizer Factory (Tianji) has 4 such gasifiers; Henan Yima Gasification Plant has 5; Lanzhou Gas Factory has 5; and Harbin Gas Factory also has 5. Generally, a gasifier with a diameter of 3.6 meters can produce 35,000 to 36,000 standard cubic meters of gas per hour.
What is the operating pressure of these ultra-high-pressure Ruhr gasifiers?
The structural difference between the two is that BGL is used for liquid slag detection, while LURGI is used for solid slag detection. The upper part of the furnace remains basically the same; only the structure below the furnace has been improved, with the slag pool and the intermittent liquid discharge port being redesigned. Improvements have been made at the connection between the lower part of the furnace and the slag outlet to ensure smooth inspections. BGL has eliminated the traditional grate inside the furnace; since it is a liquid-based system, there is no need for rotation to prevent blockages. In terms of performance, it is said that BGL is definitely superior, with all its metrics being better than those of LURGI; however, there are no specific figures available, as it is only the subject of theoretical research. There is very little information available on the performance of BGL units, and some manufacturers keep this information confidential, so it isn’t very convincing.
Yunnan Jiehua has 1 BGL furnace, which is a modified version of a 4th-generation Lurgi furnace. Henan Yima has 6 4th-generation Lurgi furnaces, with 5 in operation and 1 as a backup
For third-generation gasifiers, the manufacturers for which conversion calculations have been carried out include the following: Yunnan Jiehua has over 10 such gasifiers, some of which have been converted to BGL type; Shanxi Fertilizer Plant (Tianji) has 5 gasifiers; Henan Yima Gasification Plant has 5 gasifiers; Lanzhou Gas Factory has 5 gasifiers, though it has stopped operations now; Harbin Gas Factory has 5 gasifiers; Shanxi Lu’an has 6 gasifiers, which are currently in the testing phase. Other companies such as Datang Group and Guodian Group also plan to use Lurgi gasification technology, with the exact number yet to be determined.