Effect of Benzoic Acid on Biogenic Gas Production with Different Rank Coals and the Fluorescence Spectra Characteristic of Produced Organic Products.

ACS Omega · 2025 · PMC12044434 · PMID 40321560

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an increasing trendno p-value reported

28 Analysis of changes in the carbon dioxide (CO 2 ) content revealed an increasing trend until day 35, after which it stabilizes.

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a decreasing trendno p-value reported

Furthermore, all samples exhibited a decreasing trend in H 2 production from 0 to 20 days, followed by a plateau from 20 to 60 days and a gradual increase after 60 days ( Figure 1 a).

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