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Card 605 of 9772026-09-26 issue

Observed arrival · 2026-09-26

PetroSlate makes refinery planning inspectable

petroslate.com Visit website
Editorial interest 82/100 Selection signal · not a rating of the site

PetroSlate is early-access refinery planning software that solves linear programs in the browser or on desktop and exposes how its results connect to the underlying model.

Landing page captured for the 2026-09-26 issue.
For
Refinery planners working with linear programs
Worth noticing
The Williams example lists seven binding limits alongside LP rows, model paths, plan values, and marginal values.

Field notes

The Williams example exposes solver output in a table that pairs each binding limit with its LP row, model path, plan use, and marginal value. The site also reports varying single-start results for the Haverly pooling problem, then contrasts them with a multi-start result and describes a separate “Prove optimum” feature. Browser and desktop execution are both described, but the app is presented as early access.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use

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petroslate.com

Landing page observed 2026-09-26. The live site may have changed.