The issue of hydrogen production raw materials!
Thread Content
The hydrogen production process uses the hydrocarbon steam reforming method, with dry gas, propane, and natural gas as raw materials. Analytical tests show that dry gas contains approximately 15% oxygen and nitrogen; then why, in the reforming stage, the composition of the reformate gas consists only of hydrogen, methane, carbon monoxide, and carbon dioxide? Where do nitrogen and oxygen go? Seeking answers from fellow sea lovers!
Our test results show that the coking dry gas also contains a significant amount of nitrogen; it seems there’s something wrong with the test data
You can find out how the nitrogen content is determined; one method is to subtract 100% from it, meaning that all components that are not detected are classified as nitrogen
The amount in dry gas should be very small; when mixed with other gases, it gets diluted, and the total amount changes, resulting in a smaller proportion of nitrogen and oxygen. It’s normal that it cannot be detected!
Could you upload a picture of the test data? If there is catalytic dry gas, the nitrogen content should be very low, right? Where does so much inert gas come from in coking dry gas? It’s normal for there to be some nitrogen in propane and natural gas. The oxygen content, as determined by our analyses, is also at a trace level. With a raw material processing capacity of 3,500 cubic meters, the medium-temperature gas can reach over 10,000 units; any impurity gases can be disregarded in this case. Friend of the original poster, please add up the components in the experimental data to see if they total 100%. If not, it means there are other components that haven’t been listed
First, verify whether the test results for oxygen and nitrogen in your raw materials are correct. Second, according to the principle of hydrogen production via hydrocarbon conversion, both oxidation and reduction reactions occur during this conversion process: the oxidation reaction involves the reaction of steam and oxygen with the catalyst to produce oxidized states, while the reduction reaction involves the reaction of hydrogen with the catalyst’s oxidized states to produce elemental substances and water
Generally, it seems no testing is done, but actually analysis is available as well