DOI: 10.5061/dryad.xpnvx0knp
title: Upgrade of bio-oil produced from the sisal residue composting

description: The present work studies the composting effects on the chemical
 characteristics of bio-oil produced by pyrolysis of sisal residue. Three
 systems were composted with sisal residue proportions to sisal fiber
 powder of 100:0, 90:10, and 75:25, respectively. The systems showed
 reductions of 33–48% (extractive), 70–80% (hemicellulose), and 80–90%
 (cellulose) after composting. An increase in lignin content was observed
 in all systems. The pyrolysis of the composted systems was performed at
 450 and 550 °C. At both temperatures, this process was selective in
 producing a large concentration of hydrocarbons (&gt;160% increase),
 mainly alkanes and alkenes, reducing the concentrations of ketones,
 aldehydes, and phenolics (&gt;50%) and eliminating esters, furans, and
 acetic acid to composted biomasses. The higher temperature favored
 aromatics and cyclic hydrocarbon production from the pyrolysis of
 composted samples. In addition to these results, composting helped reduce
 the oxygenated bio-oil species by approximately 44 - 75% at the lowest and
 ~ 69% at the highest temperatures. These results indicate that composted
 sisal residue can produce bio-oils that are more suitable for
 biorefineries since they are rich in aliphatic hydrocarbons and
 non-oxygenated species.
description: Samples were analyzed using a pyrolysis apparatus (Frontier®
 model EGA-PY-3030D) coupled to a GC-MS (Shimadzu® model QP-2020 NX). The
 column was RTX1701 (60 m, 0.25 mm, 0.25 µm) used at 20 to 280 °C. The
 peaks from chromatographic analysis were identified with a minimum of 80%
 similarity.
description: # UPGRADE OF BIO-OIL PRODUCED FROM THE SISAL RESIDUE COMPOSTING
 This dataset contains the
 products obtained from analytical pyrolysis of raw and composted
 materials. The samples were compounded of sisal residue (RS) and sisal
 fiber powder (SFP) and named as follows: SFP100-T0: Sisal fiber powder at
 initial time (T0) - Non-composted sample SR100-T0: 100% sisal residue at
 initial time (T0) - Non-composted sample SR90-T0: Mixture 90% sisal
 residue + 10% sisal fiber powder at initial time (T0) - Non-composted
 sample SR75-T0: Mixture 75% sisal residue + 25% sisal fiber powder at
 initial time (T0) - Non-composted sample SR100-T44: 100% sisal residue at
 final time (T44) - Composted sample SR90-T44: Mixture 90% sisal residue +
 10% sisal fiber powder at final time (T44) - Composted sample SR75-T44:
 Mixture 75% sisal residue + 25% sisal fiber powder at final time (T44) -
 Composted sample Each sample was pyrolysed at 450 °C and 550 °C. So, each
 sheet of both files has data from pyrolysis at both temperatures.
 Pyrolysis was carried out in a Py-GC-MS system, which means that the
 volatiles from pyrolysis were analysed through a gas chromatograph with a
 mass spectroscopic detector. ## Description of the data and file structure
 Data are organized into two files. One with data from the pyrolysis of
 composted materials and the other with data from the pyrolysis of
 non-composted materials. All data are original from the pyrolysis essays.
 No processing was made over them besides that from the chromatograph
 handling. These data can be used as the basis of the analysis of volatile
 products from the pyrolysis of these materials. Also, comparative studies
 among the characteristics of these materials and others can be done by
 using these data. These and other studies that are related to sisal
 residue and sisal fiber powder, related or not to composting of these
 materials, can be done from these data. The tables of each essay have
 information about chromatographic data of products obtained from
 pyrolysis. The legend of these data can be seeing below: Peak: refers to
 the peak position number Ret. time: refers to the retention time of the
 peak/component Proc. from: refers to the initial time of the peak Proc.
 to: refers to the final time of the peak Mass: refers to the detection
 (TIC = Total Ion Chromatogram) Area: refers to the peak area Height:
 refers to the peak height A/H: is the relation between Area (A) and Height
 (H) Name: refers to the name of the detected compound Area%: refers to the
 percentega area compared to the others compounds Height%: refers to the
 percentage height compared to the others compounds CAS#: refers to the
 Chemical Abstract Service (CAS) number of the compound NI: refers to not
 identified compounds