【Weekly Topic】The issue of methane in the crude ammonia gas produced by Ruchi reactors
Thread Content
As the title suggests, when producing synthetic ammonia using a Lurgi furnace, is it better to use the methane present in the raw gas to produce LNG, or to convert it into synthetic ammonia or methanol?
LNG, the methane content in syngas produced by Ruchi furnaces is high, making it the most suitable for extraction.
First, give strong support to the moderators’ weekly topics. Participate actively. Similar discussions on this issue were held previously with the design institute; given the abundance of methane, the LNG route is the most reasonable choice. Compared to methane conversion, it requires less investment in equipment, the technology involved is relatively simple, and there is also a market demand for it at present. So the choice is LNG.
When producing synthetic ammonia in a Lurgi furnace, is it better to use the methane present in the raw gas to produce LNG, or to convert it into synthetic ammonia or methanol?... From a profitability perspective, it is better to produce LNG.
However, there are opinions suggesting that the current LNG market is saturated, and that it is less profitable than methanol or liquid ammonia!
In fact, it is not recommended to use Lurgi reactors for LNG or other coal chemical processes. Wastewater treatment is too troublesome. The product is complex, it is picky about coal, and the production efficiency is low. In Xinjiang, when using SNG plants, Lurgi boilers are employed; there is a lot of residual coal dust and pulverized coal left, which must be processed in pulverized coal boilers to deal with the coal that remains after the lump coal has been processed. . . Why go to the trouble?
In fact, the root cause lies in the fact that the right type of furnace was not selected based on the characteristics of the coal; in some places, Lu Odd furnaces can achieve an utilization rate of over 85% for lump coal.
Biomass boilers are almost 100%. And what about the coal dust and pulverized coal left over from the production of lump coal? Lurgi furnaces can’t handle it, and lump coal is hard to find in the first place. Biomass boilers don’t have this problem, and they also have a high processing capacity per boiler. Therefore, the Lurgi furnace is not recommended.
Not all coal types are suitable for pulverized coal boilers!
Dry LNG is good; many entities use dry LNG as well
For lump coal, use a Ruhki furnace; for pulverized coal, just burn it in a boiler – that’s all that’s needed