The nitrogen supply for continuous reforming has been stopped
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I’m a newcomer to process reforming and am seeking advice from experienced professionals: what consequences would occur if nitrogen supply is interrupted during continuous reforming, and what measures need to be taken?
The reformation and regeneration system has its own dedicated nitrogen supply, and it involves aspects such as pressure difference control and isolation systems; it’s hard to explain clearly. Simply put, when the nitrogen pressure falls below 0.45 (or sometimes 0.425) MPa, the regeneration system shuts down – it’s a complex process. . . . .
What are the impacts of a complete shutdown of the nitrogen system in large-scale units, and what other actions should be taken in addition to ensuring proper sealing?
A continuous reforming unit does not require medium-pressure nitrogen under normal operating conditions! Because the regeneration unit uses specialized nitrogen for regeneration, under normal operating conditions, low-pressure nitrogen is used for the dry gas seal! Therefore, under normal operating conditions of the device, the medium-pressure nitrogen can be shut off, but it is essential to ensure that a supply is available in case of abnormalities! When starting the reforming booster, is medium-pressure nitrogen required for the process gas in the dry gas seal, or is it the purge gas from the pre-hydrogenation system that needs to be medium-pressure nitrogen?