Upgrade of bio-oil produced from the sisal residue composting
Data files
Feb 06, 2024 version files 76.50 KB
Abstract
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 (>160% increase), mainly alkanes and alkenes, reducing the concentrations of ketones, aldehydes, and phenolics (>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.
README: UPGRADE OF BIO-OIL PRODUCED FROM THE SISAL RESIDUE COMPOSTING
https://doi.org/10.5061/dryad.xpnvx0knp
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
Methods
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.