Sulfide in raw gas
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Today at work, I suddenly received a call from my supervisor asking what the hydrogen sulfide level in raw gas was. I realized that we usually don’t conduct hydrogen sulfide analyses; we only do them when sulfiding the conversion catalysts. I had forgotten what the hydrogen sulfide content in gas is. Does anyone know the typical hydrogen sulfide content in raw gas?
It depends on the coal used for generating gas; high-sulfur coal can have a value of 3–5 g/m3, while low-sulfur coal might be around 0.3–0.5 g/m3 – it’s not fixed.
The sulfur content in high-sulfur coal can be as high as 3–5 g/m3. I vaguely remember that the value obtained was somewhere over 20,000 or maybe over 10,000 mg/M3. Is that a high value?
The data from my theoretical calculations relate to low-sulfur coal: when the sulfur content in the coal is 1.21%, the sulfur content in the raw gas is 0.43%; whereas when the sulfur content in the coal is 0.96%, the sulfur content in the raw gas is 0.34%.
This post was last edited by 654262293 on 2010-8-28 at 13:36. The hydrogen sulfide content in the raw gas is related to the sulfur content in the coal used as raw material; the higher the sulfur content in the coal, the higher the sulfur content in the raw gas. The hydrogen sulfide content in the raw gas needs to be measured; otherwise, how can you know whether sulfidation is occurring in the conversion catalyst? How can we determine whether the hydrogen sulfide content meets the minimum requirement for hydrogen sulfide in cobalt-molybdenum catalysts?
It depends on the quality of coal used for burning, the load, as well as the processing methods. When we use lignite, it’s 0.02~0.01
It depends on the type of coal being used, as well as the sulfur content in that coal. It also depends on the gasification process – whether it is fixed-bed gasification, or gasification using Texaco or four-nozzle technologies; all these factors play a role.
If Xiaolongtan lignite is used, the total sulfur content is generally around 1%, which is 10 g/m3
It is also related to the gas generation process. The hydrogen sulfide content in raw gas varies depending on the gas production process and the type of coal used
The level of hydrogen sulfide is largely determined by the type of coal you use. . .