Deep Insights into Heavy Oil Upgrading Using Supercritical Water by a Comprehensive Analysis of GC, GC-MS, NMR, and SEM-EDX with the Aid of EPR as a Complementary Technical Analysis.

ACS Omega · 2021 · PMC7807475 · PMID 33458466

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In their study, the SARA fractions tend to keep constant with increasing reaction time after 1 h, while they changed with increasing reaction time in our case, specifically, saturate content decreased after reaching its maximum at 1 h, aromatic, resins, and asphaltenes showed an increasing trend.

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