Key technologies for shell gasification
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As far as I know, there are roughly six key technologies in GE (Texaco) water-coal slurry gasification: water-coal slurry preparation and transportation technology, burner technology, refractory material technology, quenching ring technology, wear-resistant valve technology, and slag treatment technology (I’m not sure if this is correct; please feel free to correct me). Let’s discuss what the key technologies are in shell gasification units
The key technologies for shell gasification should include dry coal powder preparation and transportation, water wall, fly ash filter, etc
There is a patent list for Shell furnaces in that database; you can search it, and it seems there are several hundred items. The key distinctive core technologies are powder high-pressure fluidization and automatic control technology.
If you are interested, we could discuss burners and cooling rings; we have experience in manufacturing nozzles for ironmaking reduction furnaces, blast furnaces, and electric furnaces.
Coal grinding and drying, coal powder pressurization and transportation, and coal gasification – these three units are relatively important
Then please share your experience with iron smelting reduction furnaces, blast furnaces, and electric furnace nozzles!
The key aspects of Texaco water-coal slurry gasification are the preparation and transportation of water-coal slurry, three-way flow burner technology, and quenching ring technology； As for technologies such as refractory materials, wear-resistant valve technologies, and slag treatment technologies, there are common issues present in large-scale gasification projects like those carried out by Shell.
The main problems that have come to light at present are: 1. The issue with the burner cover; a second-generation burner cover has been designed, which has effectively resolved the problem. 2. The issue with the quench gas compressor: due to the lack of a backup unit, the system has to be shut down whenever a problem occurs. 3. Damage to high-temperature and high-pressure ceramic filters (filter elements). 4. Coal with high ash fusion point and high ash content is very difficult to handle, and slag deposition occurs abnormally.
In fact, the biggest challenge may well be whether the concept of control and the high standards for maintenance are accepted by the operation managers