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Oxidative Aging Characterization of Pyro-Oil Modified Binders Using Fourier Transform Infrared Spectroscopy

Bhagat Nikita Taran, Hadole Hemantkumar Prakash, Ranadive Mahadeo Sambhaji

Advances in Science and Technology. Research Journal

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2023

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Vol. 17, no 1

140--149

EN

The numerous uses for plastics in various industries have led to an increase in its manufacturing on a global scale over time. The accumulation of plastic waste is a direct result of the daily rise in plastic demand. One of the effective and trending ways of reducing the impact of plastic waste on the environment is to pyrolyze it and use the oil obtained from it as fuel for power generation, heating, extraction of chemicals, or as an asphalt binder modifier. In this study, an attempt was made for the modification of asphalt binder with the oil obtained from plastic waste pyrolysis known as pyro-oil, and to analyse aging properties of the modified binder. This paper deals with the modification of VG30 binder with pyro-oil obtained from High Density Polyethylene (HDPE) plastic waste and the analysing the effect of aging on the modified binders. Pyro-oil is yielded from the pyrolysis process of HDPE at about 750°C. The modified binders were prepared by adding 1%, 2%, and 3% pyro-oil by total weight of VG30. The effect of aging for the unmodified and modified binders was analyzed using fourier transform infrared (FTIR) spectroscopy. The binders were short term aged and the changes in their chemical functionalities before and after aging were analyzed. Results of the FTIR test were used to calculate functional group indices for evaluating the aging characteristics of the modified binders. It was observed that binder chemistry is influenced by aging.

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Oxidative desulfurization of synthetic diesel oil by oxidation/adsorption continuous flow process

Fabiś G., Lewandowski M., Sarbak Z., Czajkowska S.

Polish Journal of Applied Chemistry

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2010

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Vol. 54, nr 1-4

41-48

EN

Catalytic oxidative desulfurization (ODS) of a synthetic diesel oil was studied in the presence of metal containing (Ti. V. Nb. Ta) MCM-41 catalysts. The effects of reaction temperature, reaction time, oxidant to sulfur molar ratio and sulfur concentration on the sulfur removal were investigated. The obtained results indicated that metal containing MCM-41 type mesoporous molecular sieves are able to catalyze the continuous selective oxidation of the most refractory sulfur compounds such as 4.6-dimethyldibenzothiophene.

3

The oxidation of 1-chloro-3-alkylthio-2-propanols and 1-alkylthio-2,3-epoxypropanes to sulfoxides and sulfones

Chlebicki J.

Polish Journal of Applied Chemistry

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2004

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Vol. 48, nr 1-2

23-31

EN

1-Chloro-3-alkylsulfinyl-2-propanols, 1-chloro-3-alkylsulfonyl-2-propanols and 1-alkylsulfinyl-2,3-epoxypropanes were obtained in the oxidation reaction of the respective sulfides using such oxidants as 3-chloroperbenzoic acid, NaIO4 and H2O2. The following parameters of the reaction were investigated - time, temperature and the molar ratio of oxidant and sulphide. It was found that the highest yield of sulfoxides was obtained when NaIO4 or H2O2 was used under neutral pH. The oxidation of sulfides with H2O2 under acidic conditions leads to 1-chloro-3-alkylsufonyl-2-propanols with almost quantitative yield.

PL

W reakcji utleniania odpowiednich sulfidów otrzymano 1-chloro-3-alkilosulfinylo-2--propanole i 1-chloro-3-alkilosulfonylo-2-propanole za pomocą takich utleniaczy jak: kwas 3-chloronadbenzoesowy, NaIO4 i H2O2. Zbadano warunki prowadzenia utleniania, takie jak temperatura i czas reakcji, a przede wszystkim stosunek molowy utleniacza do sulfidu. Stwierdzono, że największą wydajność sulfotlenków można uzyskać przy użyciu NaIO4 lub H2O2 w środowisku obojętnym. Utlenianie badanych sulfidów przy użyciu H2O2 w środowisku kwaśnym prowadzi do otrzymania z prawie ilościową wydajnością tylko 1-chloro-3--alkilosulfonylo-2-propanoli.