Effect of synthetic hydrogen-carbon ratio and catalyst on yield
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The synthesis yield has decreased, the hydrogen-to-carbon ratio has fallen, and the carbon monoxide content is twice as high as before. Is this due to the synthesis catalyst? We have been using the synthesis catalyst here for almost two years now
It could be due to the catalyst; generally, the service life of synthetic catalysts is around 2 to 3 years. However, changes in the synthesis yield are closely related to the control of the hydrogen-to-carbon ratio, with the effect of the catalyst being gradual, whereas the impact of the hydrogen-to-carbon ratio can be observed quite quickly in the short term. Your CO level is twice as high as before; has the H level increased accordingly? The key issue is probably that there’s too much carbon and not enough hydrogen, which affects methanol production
Increase the circulation ratio, boost off-gas emission, and enhance hydrogen recovery. Essentially, there are just these two methods for synthesizing a hydrogen-carbon ratio. For the Luchie shell-and-tube reactor, it can be kept at around 3.
First, calculate the one-way conversion rate of CO to see how well the catalyst performs, and then make a judgment.
The gradual increase in carbon monoxide in the gas entering the tower is definitely one of the signs of declining catalyst activity.
Additionally, the decline in catalyst activity leads to the accumulation of CO, and an increase in CO can be observed from the analysis data.