Olefin and Paraffin Separation

Baudot, A.

doi:10.1007/978-3-662-44324-8_731

Cited by 1 publication

(2 citation statements)

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“…The waxes were found to contain olefinic content when analyzed by Fourier-transform infrared spectroscopy (FTIR) with a clear CH stretching and bending (Figure c). In addition to the potential usefulness of these waxes in the lubricant and detergent industry, , they can be used as a feedstock for ethylene production in a typical steam cracker, supporting circular economy. , Furthermore, the collected waxes from pyrolysis can also be pyrolyzed in the presence of KOAc to yield a sorbent with an uptake capacity similar to that of the sorbent derived from the parent plastic (Figure S12). The sorbent is predicted to have a negative carbon footprint within 5 h of CO 2 capture operation (Table S2), which means that monomers and hydrocarbons can be produced from PW at lower carbon footprint than the typical crude oil to petrochemicals processes.…”

Section: Resultsmentioning

confidence: 99%

“…28 The waxes were found to contain olefinic content when analyzed by Fourier-transform infrared spectroscopy (FTIR) with a clear CH stretching and bending (Figure 3c). In addition to the potential usefulness of these waxes in the lubricant and detergent industry, 29,30 they can be used as a feedstock for ethylene production in a typical steam cracker, supporting circular economy. 29,31 Furthermore, the collected waxes from pyrolysis can also be pyrolyzed in the presence of KOAc to yield a sorbent with an uptake capacity similar to that of the sorbent derived from the parent plastic (Figure S12).…”

Section: Resultsmentioning

confidence: 99%

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Plastic Waste Product Captures Carbon Dioxide in Nanometer Pores

et al. 2022

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Plastic waste (PW) and increasing atmospheric carbon dioxide (CO 2 ) levels are among the top environmental concerns presently facing humankind. With an ambitious 2050 zero-CO 2 emissions goal, there is a demand for economical CO 2 capture routes. Here we show that the thermal treatment of PW in the presence of potassium acetate yields an effective carbon sorbent with pores width of 0.7−1.4 nm for CO 2 capture. The PW to carbon sorbent process works with single or mixed streams of polyolefin plastics. The CO 2 capacity of the sorbent at 25 °C is 17.0 ± 1.1 wt % (3.80 ± 0.25 mmol g −1 ) at 1 bar and 5.0 ± 0.6 wt % (1.13 ± 0.13 mmol g −1 ) at 0.15 bar, and it regenerates upon reaching 75 ± 5 °C. The CO 2 capture cost from flue gas via this technology is estimated to be <$21 ton −1 CO 2 , much lower than competing CO 2 capture technologies. Hence, this PW-derived carbon material should find utility in the capture of CO 2 from point sources of high CO 2 emissions while providing a use for otherwise deleterious PW.

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