Copolymerization of palm oil with sulfur using inverse vulcanization to boost the palm oil industry

2021 ◽  
Vol 29 (9_suppl) ◽  
pp. S1446-S1456
Author(s):  
Amin Abbasi ◽  
Wan Zaireen Nisa Yahya ◽  
Mohamed Mahmoud Nasef ◽  
Muhammad Moniruzzaman ◽  
Ali Shaan Manzoor Ghumman
Keyword(s):  
Vegetable Oil ◽  
Palm Oil ◽  
Elemental Sulfur ◽  
Oil Industry ◽  
Nitrogen Atmosphere ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Petroleum Refineries ◽  
New Applications ◽  
Green Polymer

Nowadays, most of the world’s palm oil is being produced in Malaysia and Indonesia; however, the demand for this vegetable oil as an edible oil is declining in many countries since consuming palm oil in excess can result in serious health problems. Consequently, finding new applications such as the production of bio-based polymers to make use of this cheap and abundant vegetable oil seems necessary. Herein, we report the copolymerization of palm oil with sulfur with different feed ratios via inverse vulcanization. The copolymers are then characterized using Fourier-transform infrared spectroscopy, differential scanning calorimetry and X-ray diffraction analysis. The results confirmed the formation of the polymers and their stability against depolymerization. Altogether, the obtained sulfur-palm oil copolymers showed great properties such as thermal stability up to 230°C under a nitrogen atmosphere and rubbery properties at room temperature. Although the Thermogravimetric analysis (TGA) thermograms had previously confirmed the high conversion of elemental sulfur into the polymeric structure by comparing the initial sulfur content and the final polysulfide content in the polymer, some unreacted elemental sulfur was also observed in the final product. Sulfur-palm oil (S-Palm oil) is a new green polymer that helps to find a new use for palm oil as a big industry as well as sulfur which is underutilized and left in stockpile as a byproduct in gas and petroleum refineries.

Preparation and characterization of green polymer by copolymerization of corn oil and sulphur at molten state

2020 ◽  
pp. 096739112095953 ◽  
Author(s):  
Amin Abbasi ◽  
Mohamed Mahmoud Nasef ◽  
Wan Zaireen Nisa Yahya ◽  
Muhammad Moniruzzaman ◽  
Ali Shaan Ghumman
Keyword(s):  
Corn Oil ◽  
Polymeric Materials ◽  
Nitrogen Atmosphere ◽  
Added Value ◽  
Gravimetric Analysis ◽  
Molten State ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Green Polymer ◽  
First Time

Vegetable oils are a promising class of bioresources for producing green polymeric materials to reduce the dependence on petro-based polymers. In this study, a green copolymer prepared by thermal copolymerization corn oil with sulphur at its molten state is reported for the first time. The proportions of sulphur to corn oil (w/w%) in the reaction mixture were varied in the range of 50/50 to 80/20 and the reactions were carried out at 170°C for 1 h. The obtained copolymers were characterized using Fourier transform infrared (FTIR), thermal gravimetric analysis (TGA), differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and powder X-ray diffraction (PXRD). The percentage of the unsaturated fatty acid portion was found to act as a multifunctional monomer stabilizing polysulphide forming crosslinked structures that vary depending on reactant sulphur content. The obtained copolymers were found to be amorphous thermosets with heavily crosslinked structures and composite morphologies. The copolymers also showed high thermal stability under nitrogen atmosphere. The new copolymers are environmentally friendly hybrid material promoting green chemistry with a potential added value to abundantly available sulphur and corn oil.

scholarly journals Conversion of palm oil to new sulfur-based polymer by inverse vulcanization

2021 ◽  
Vol 287 ◽  
pp. 02014
Author(s):  
Amin Abbasi ◽  
Mohamed Mahmoud Nasef ◽  
Wan Zaireen Nisa Yahya ◽  
Muhammad Moniruzzaman
Keyword(s):  
Thermal Stability ◽  
Differential Scanning Calorimetry ◽  
Fourier Transform ◽  
Thermogravimetric Analysis ◽  
Palm Oil ◽  
Elemental Sulfur ◽  
Molten State ◽  
Scanning Calorimetry ◽  
Environmental Friendly ◽  
Sulfur Containing

The conversion of palm oil into a sulfur-based polymer by copolymerization with sulfur powder at its molten state is herein reported. The obtained sulfur-containing polymer was characterized using Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC) to demonstrate the successful conversion. The disappearance of the peaks related to vinylic groups of oil together with the appearance of a peak representing C-H rocking vibrations in the vicinity of C-S bonds confirmed the copolymerization of sulfur with oil. TGA revealed that the polymers have thermal stability up to 230°C under nitrogen and the polymers leave 10% sulfur-rich ash. DSC proved that a small amount of elemental sulfur remained unreacted in the polymer, which showed amorphous and heavily crosslinked structure resembling thermosets. These copolymers are an environmental-friendly polymeric material promoting the utilization of the abundant sulfur while also adding value to palm oil.

scholarly journals Hydrogen desorption kinetics of MgH2 synthesized from modified waste magnesium

2014 ◽  
Vol 32 (3) ◽  
pp. 385-390
Author(s):  
Aysel Kantürk Figen ◽  
Bilge Coşkuner ◽  
Sabriye Pişkin
Keyword(s):  
Hydrogen Desorption ◽  
Nitrogen Atmosphere ◽  
Desorption Kinetics ◽  
X Ray Diffraction ◽  
Heating Rates ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Xrf Scanning ◽  
Isothermal Kinetic ◽  
Kinetics Of

AbstractIn the present study, hydrogen desorption properties of magnesium hydride (MgH2) synthesized from modified waste magnesium chips (WMC) were investigated. MgH2 was synthesized by hydrogenation of modified waste magnesium at 320 °C for 90 min under a pressure of 6 × 106 Pa. The modified waste magnesium was prepared by mixing waste magnesium with tetrahydrofuran (THF) and NaCl additions, applying mechanical milling. Next, it was investigated by X-ray diffraction (XRD), X-ray fluorescence (XRF), scanning electron microscopy (SEM) and Brunauer-Emmett-Teller (BET) techniques in order to characterize its structural properties. Hydrogen desorption properties were determined by differential scanning calorimetry (DSC) under nitrogen atmosphere at different heating rates (5, 10, and 15 °C/min). Doyle and Kissenger non-isothermal kinetic models were applied to calculate energy (Ea) values, which were found equal to 254.68 kJ/mol and 255.88 kJ/mol, respectively.

Atmosphere effects of the amorphization reaction in NiZr by ball milling

1993 ◽  
Vol 8 (2) ◽  
pp. 307-313 ◽  
Author(s):  
K. Aoki ◽  
A. Memezawa ◽  
T. Masumoto
Keyword(s):  
High Energy ◽  
Hydrogen Atmosphere ◽  
Nitrogen Atmosphere ◽  
Gas Absorption ◽  
X Ray Diffraction ◽  
Mechanically Alloyed ◽  
Scanning Calorimetry ◽  
Transmission Electron ◽  
High Energy Ball Mill ◽  
Energy Ball

An intermetallic compound c–NiZr and a mixture of elemental powders of nickel and zirconium [Ni50Zr50 (at. %)] have been mechanically ground (MG) and mechanically alloyed (MA), respectively, using a high-energy ball mill in various atmospheres. The products were characterized by x-ray diffraction, transmission electron microscopy, differential scanning calorimetry, and chemical analysis as a function of milling time. An amorphous a–NiZr alloy was prepared by both MG and MA in an argon atmosphere. By MG of NiZr, an amorphous nitride a–NiZrN0.15 was synthesized in a nitrogen atmosphere, while a crystalline hydride c–NiZrH3 was formed in a hydrogen atmosphere. On the other hand, ZrN and ZrH2 were formed by MA in a nitrogen and a hydrogen atmosphere, respectively. The amorphization reaction was observed between ZrH2 and Ni by further MA in a hydrogen atmosphere, and a mixture of a–NiZrxHy (x < 1) and ZrH2 was obtained. However, no amorphization was observed by MA between ZrN and Ni in a nitrogen atmosphere. The effects of the milling atmosphere on the phase formations during MG and MA are discussed based on the gas absorption rate.

THE IMPLEMENTATION OF BUSINESS ETHICS IN THE PALM OIL INDUSTRY

MODUS ◽  
2016 ◽  
Vol 27 (2) ◽  
pp. 183
Author(s):  
Felix Wisnu Isdaryadi
Keyword(s):  
Business Ethics ◽  
Vegetable Oil ◽  
Palm Oil ◽  
Oil Palm ◽  
Oil Industry ◽  
Social Consequences ◽  
Oil Crops ◽  
Rapid Economic Growth ◽  
Long Run ◽  
The World

Abstract Palm oil is the most produced vegetable oil in the world today-approximately 37 million metric tons, andis entirely GMO-free. Oil palm produces up to 10 times more oil per hectare than soybean, rapeseed or sunfower. Although oil palm is a more sustainable source of vegetable oil than other oil crops, there is concern that the growing demand of palm oil for food and bio fuel could lead to rapid and ill-managed expansion of palm oil production and result in serious environmental and social consequences. It is vital that the production and use of palm oil must be done in a sustainable manner based on economic, social and environmental viability. It becomes clear that these actions are benefcial on one hand, but, on the other hand, might be harmful in the long run. The palm oil industry may result in rapid economic growth. However, it could also degrade the environment, whichin turn could lead to public health problems in the longer term, decreasethe productivity and harm the economy.Keywords: palm oil industry, business ethics, environment, economy.

Evaluation of properties of sulfur-based polymers obtained by inverse vulcanization: Techniques and challenges

2020 ◽  
pp. 096739112095407 ◽  
Author(s):  
Ali Shaan Manzoor Ghumman ◽  
Mohamed Mahmoud Nasef ◽  
M Rashid Shamsuddin ◽  
Amin Abbasi
Keyword(s):  
Elemental Sulfur ◽  
Complex Structure ◽  
X Ray Diffraction ◽  
Renewable Materials ◽  
Scanning Calorimetry ◽  
Characterization Methods ◽  
X Ray ◽  
Characterization Techniques ◽  
Thermal Gravimetric Analyzer ◽  
Treatment Conditions

Sulfur-based polymers are unique renewable materials that are receiving a growing attention. The utilization of elemental sulfur with a variety of monomers in their preparation in the absence of solvents using the inverse vulcanization are granting them green nature and unique properties. Several characterization techniques have been used to evaluate the properties of sulfur-based polymers. However, the complex structure and lack of solubility undermine the applicability of some standard characterization techniques in the usual manners. This article reviews the characterization methods used for the evaluation of various properties of sulfur-based polymers such as chemical, morphological, structural, thermal, rheological and mechanical properties, all of which vary depending on the type of comonomer involved in the reaction and heat treatment conditions. The successful applications of different characterization techniques including Fourier transform infrared spectroscopy (FTIR), Raman spectroscopy, nuclear magnetic resonance (NMR), scanning electron microscopy/X-ray energy dispersion (SEM-EDX), X-ray diffraction (XRD), mechanical tester, rheometer, thermal gravimetric analyzer (TGA) and differential scanning calorimetry (DSC) are discussed. The challenges to the evaluation of the properties of sulfur-based polymers and the innovative applications of the conventional techniques to overcome them are also deliberated.

Nanocrystalline ZrN particles embedded in Zr-Fe-Cu-Al-Ni amorphous matrix.

2002 ◽  
Vol 754 ◽  
Author(s):  
Marisa A. Bab ◽  
Laura C. Damonte ◽  
Luis Mendoza-Zélis ◽  
Stefano Deledda ◽  
Jurgen Eckert
Keyword(s):  
Amorphous Matrix ◽  
Nitrogen Atmosphere ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Late Transition Metals ◽  
Amorphous Ribbons ◽  
Melt Spun ◽  
Late Transition ◽  
Thermal Stability Of

ABSTRACTMelt-spun Zr64Al7Cu17Ni10Fe2 amorphous ribbons were milled under nitrogen atmosphere for different times. The resulting nitrided powders were studied by x-ray diffraction, Mössbauer spectroscopy and differential scanning calorimetry. The formation of nanosized crystalline particles, with cubic δ-ZrN structure, dispersed in the amorphous matrix was observed along with a change in the composition of the amorphous phase. Prolonged milling leads to the additional precipitation of late transition metals (Fe,Ni,Cu). The nitride particles affect the crystallization behavior and modify the thermal stability of the amorphous alloy.

Synthesis of pure amorphous Fe2O3

1997 ◽  
Vol 12 (2) ◽  
pp. 402-406 ◽  
Author(s):  
X. Cao ◽  
R. Prozorov ◽  
Yu. Koltypin ◽  
G. Kataby ◽  
I. Felner ◽  
...  
Keyword(s):  
Differential Scanning Calorimetry ◽  
Particle Size ◽  
Room Temperature ◽  
Nitrogen Atmosphere ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Air Atmosphere ◽  
Transmission Electron ◽  
Amorphous Nanoparticles

A method for the preparation of pure amorphous Fe2O3 powder with particle size of 25 nm is reported in this article. Pure amorphous Fe2O3 can be simply synthesized by the sonication of neat Fe(CO)5 or its solution in decalin under an air atmosphere. The Fe2O3 nanoparticles are converted to crystalline Fe3O4 nanoparticles when heated to 420 °C under vacuum or when heated to the same temperature under a nitrogen atmosphere. The crystalline Fe3O4 nanoparticles were characterized by x-ray diffraction and M¨ossbauer spectroscopy. The Fe2O3 amorphous nanoparticles were examined by Transmission Electron Micrography (TEM), Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), and Quantum Design SQUID magnetization measurements. The magnetization of pure amorphous Fe2O3 at room temperature is very low (<1.5 emu/g) and it crystallizes at 268 °C.

scholarly journals POTENSI GAS RUMAH KACA (GRK) KOLAM ANAEROBIK PADA PENGOLAHAN LIMBAH CAIR PABRIK KELAPA SAWIT (LCPKS)

2018 ◽  
Vol 14 (3) ◽  
pp. 193
Author(s):  
Hisyam Musthafa Al Hakim ◽  
Lya Agustina
Keyword(s):  
Carbon Dioxide ◽  
Gas Chromatography ◽  
Greenhouse Gas ◽  
Vegetable Oil ◽  
Palm Oil ◽  
Rapid Development ◽  
Oil Industry ◽  
Environmental Damage ◽  
Average Potential ◽  
Palm Oil Mill

World vegetable oil needs to be increased every year along with population growth. Vegetable oil which potential to supply is palm oil because it has the highest productivity compared to other vegetable oil sources. Behind the rapid development of palm oil, came negative issue about environmental damage especially the increase of greenhouse gas emissions caused by the palm oil industry. This research aimed to calculate the potential of greenhouse gas caused by palm oil mill effluent (POME) treatment in the anaerobic pond. The method used is by capture methane and carbon dioxide at the float chamber then gas chromatography analyzed. The results showed that the highest methane and carbon dioxide released at night (10.00 – 11.00 pm). The average potential released methane is 9441.28 mg C-CH4 m-2h-1 and Carbon dioxide is 5920.74 mg C-CO2 m-2h-1.

scholarly journals Improving the synthesis process of tribological materials based on tin sulphides by adding graphite as additive

2019 ◽  
Vol 84 (4) ◽  
pp. 423-433
Author(s):  
Natasa Gajic ◽  
Zeljko Kamberovic ◽  
Zoran Andjic ◽  
Marija Korac ◽  
Jarmila Trpcevská ◽  
...  
Keyword(s):  
Optical Emission ◽  
Nitrogen Atmosphere ◽  
Synthesis Process ◽  
Analysis Method ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Positive Effects ◽  
Software Modelling ◽  
Hsc Chemistry

The aim of this research was to study the effect of graphite addition in the process of synthesis of tribological materials based on tin sulphides. The tin sulphides powders were synthesized from selected precursors by pyrometallurgical method in rotary tilting tube furnace. The thermodynamic parameters of the synthesis were determined using HSC Chemistry software modelling package. In addition, the synthesis process was also characterized by the thermal analysis method: simultaneous differential scanning calorimetry and thermogravimetry (DCS-TGA). The characterization of the synthesized tin sulphides powders included analysis of chemical composition by optical emission spectroscopy, phase composition identification by X-ray diffraction (XRD) and examination of morphology, as well as elemental composition by scanning electron microscopy (SEM) with energy-dispersive spectroscopy (EDS). The hexagonal SnS2 and orthorhombic Sn2S3 phases were formed after the thermal treatment of starting powders in nitrogen atmosphere. The obtained results indicate the positive effects of the graphite addition which enables the synthesis of tin sulphide powders with appropriate content of sulphide phases with minimal loss of sulphur.

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