Desperation does not help MMEX's case in this matter - the patently false claim, and deliberate misrepresentation of facts only reeks of MMEX promotor's attempts to side-step, and tap dance for distraction purposes away from MMEX's fatal flaws.
A refinery complex is composed of multiple units - some even redundant, because of their critical role in the complex's operation.
When a particular unit is built, it undergoes routine operation and maintenance. About every two years, a turn-around is performed on all, or part of a unit. Equipment is replaced for various reasons, upgrades are performed, cleaning and inspection is done, and the unit brought back into like-new spec, then it gets restarted.
On longer intervals, normally 5-10 years, entire units get replaced with modernized designs, which improve throughput, reliability, operating efficiency, and energy efficiency.
The refinery business is a razor-thin margin business - operators continually modernize to squeeze every penny of profit out of operations. MMEX clearly doesn't understand this - the Phase I unit is a single-stream system that lacks even the most basic operational reliability elements. It is also one of the lease energy efficient designs possible - focus on the straight-run diesel stripper - a reboiler. It is a comedy.
The claim that a refinery unit, in any U.S. based refinery has been operating for 40 continuous years is laughable, and demonstrates either a total lack of knowledge, or deliberate intent to misinform.
Again. From someone who has actually worked in upstream, I can tell people that corrosion and sedimentation can have a huge cost and efficiency impact on oil production facilities and downstream refineries. Maintenance does have a positive impact, but I can tell people that equipment NEVER gets back to the original efficiency and productivity unless replaced. I don’t care if people don’t believe me or not. I know this is the case. 40 years is a long long time in production. Mmex