[Help Request] Regarding hydrogenation of exhaust gases in sulfur recovery units
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The hydrogen content in the exhaust gas from my current unit keeps fluctuating; I’m not sure what the issue is. The unit next to mine is identical to mine, and its exhaust gas has a more stable hydrogen content. I’d like to know what could be causing this problem
Has this hydrogen pipeline been purged with nitrogen? Is there any liquid present in the pipelines along its length? The occurrence of water seals in certain sections of the pipeline can lead to such fluctuations in pressure； Also, is the hydrogen supply sufficient, and is there a competition for supply between the two systems? ； Secondly, there is a possibility that sulfur accumulation could block the pipes at the valve at the root of the hydrogen inlet to the reactor; this situation often occurs when an unexpected shutdown happens without the hydrogen inlet valve being closed in time.
First, it’s necessary to determine what technological approach will be used, and then the operating parameters or relevant data should be provided. It’s important to know whether the hydrogen is supplied from outside or produced internally; fluctuations in the case of hydrogen derived from reforming are normal. Also, stabilize the air distribution operation of the sulfur production furnace. The amount of air supplied to the sulfur production furnace has a significant impact on the hydrogen content in the system; it is advisable to maintain a stable air-to-gas ratio.