Hydrogen analysis for reformation feed hydrotreating
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In the hydrogen analysis for hydrocracking during reformation, the levels are as follows: oxygen 0.64, nitrogen 2.40, methane 4.76, carbon monoxide 0, carbon dioxide 0, ethylene 0, ethane 2.11, butenes 0, isobutane 0.53, n-butane 0.39, neoisobutylene 0, trans-butene 0, cis-butene 0, isopentane 0.13, n-pentane 0.05, carbon 6 0.04, and hydrogen 85.23. What is the purpose of these analyses?
Friend, take a look at this test report: 1. Oxygen level: 0.64. There should be no oxygen in reformed hydrogen; there’s an issue with the test results； ⒉The hydrogen purity of 85.23 is relatively low, indicating that the reformation-recontact process is not effective; the operation parameters for reformation need to be adjusted ； ⒊Hydrogen: 85.23; a low purity level for hydrocracking means an increased hydrogen consumption. This post was last edited by Zhongyuanren on 2009-3-11 13:08.]
Air must have gotten mixed in during sampling; this sample is definitely inaccurate!
Thank you for the analysis from above; indeed, the contact performance of our device is poor, especially with the water cooler used for contact； Are there any other methods to enhance the contact effect and improve hydrogen purity? ；
If you use ammonia for freezing, it increases the load on the ammonia compressor. If you only have water cooling, increase the water circulation volume and raise the recontact pressure appropriately.
Oxygen: 0.64. This is an explosive gas; it’s very dangerous. The hydrogen purity is 85%; it cannot be used for hydrocracking as it is too low. Also, it seems like the sum of all your components isn’t 100%, right?
It is very possible for air to get in during sampling, as the sample is not taken in a sealed environment. I was really careful when going upstairs, but I missed the 3.72% value related to propane; overall, the percentage comes to 99.91%, but there might still be some values that were not recorded
The main problem is that the hydrogen purity is too low! Go through membrane separation or PSA
Is there any hydrogen production equipment that can be integrated with their PSA system? If not, installing a membrane separation unit on one’s own will ensure the desired purity level. Dalian Petrochemical has installed such a unit, which ensures that the hydrogen has a purity of 4 nines