scholarly journals Study of composition and properties of carbon-containing industrial rubber waste pyrolyzates

2021 ◽  
Vol 315 ◽  
pp. 02002
Author(s):  
Evgeniуa Makarevich ◽  
Andrey Papin ◽  
Tatiana Cherkasova

The study of mining industry rubber waste pyrolyzates and the search for new opportunities to expand the areas of their application remains an urgent research task. The study of the solid residue of industrial rubber waste pyrolysis is presented in the work. Possibilities of improving the quality characteristics of solid carbon residue are considered. The results of studying the composition by various methods are presented. The adsorption properties of the obtained product are studied and the content of oxygen-containing functional groups in the initial and the upgraded carbon residue of pyrolysis are determined.

2020 ◽  
Vol 174 ◽  
pp. 02030
Author(s):  
Evgeniуa Makarevich ◽  
Andrey Papin ◽  
Alexander Chernik

The study of the composition of the mining industry rubber waste pyrolyzates is an urgent research task. The study of the rubber waste pyrolyzates: solid carbon residue and various fractions of the pyrolysis liquid is presented in the work. A high content of sulfur compounds in all fractions of the pyrolysis liquid was found. The possibilities of improving the quality characteristics of the solid carbon residue and reducing sulfur- containing substances in the fractions of the pyrolysis liquid, which will allow their use as adsorbents and motor fuels, are considered.


2008 ◽  
Vol 42 (2) ◽  
pp. 93-94 ◽  
Author(s):  
E. E. Gorlova ◽  
B. K. Nefedov ◽  
E. G. Gorlov ◽  
A. A. Ol’gin

2015 ◽  
Vol 19 (8) ◽  
pp. 15 ◽  
Author(s):  
V.I. Nazarov ◽  
D.A. Makarenkov ◽  
E.A. Barinskii ◽  
S.N. Kramorova

2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Yury V. Lugovoy ◽  
Kirill V. Chalov ◽  
Yury Yu Kosivtsov ◽  
Antonina A. Stepacheva ◽  
Esther M. Sulman

In this paper, the results of the study on the influence of the addition of 10 wt.% of FeCl3, CoCl2, NiCl2, ZnCl2, SnCl2, and CuCl2 on the wheat straw pyrolysis process are presented. The studied chlorides were found to affect the pyrolysis process; however, the highest activity was observed while using CuCl2. The presence of the copper chloride led to the decrease in the temperature of the initial destruction of hemicellulose fraction of wheat straw by 64°С. Besides, the use of CuCl2 allowed increasing the yield of liquid and solid pyrolysis products as well as decreasing the molecular weight distribution of the volatiles. Moreover, the increase in the hydrogen and decrease in carbon dioxide concentration were also observed in the presence of copper chloride. The analysis of the solid residue obtained in the wheat straw pyrolysis in the presence of CuCl2 showed the increase in the specific surface area of the carbon residue from 24 up to 63.5 m2/g in comparison with that obtained for the noncatalytic process.


2019 ◽  
Vol 105 ◽  
pp. 02027
Author(s):  
Yevgenia Makarevich ◽  
Andrey Papin ◽  
Eugen Domru

The study on preparation of sorbents based on carbon residue of tire pyrolysis is presented in the article. As a part of the study, carbon residue was refined to improve its processing characteristics. It is found that refining resulted in twofold total pore volume increase. Also, the iodine adsorption value depends on the time of reaction. Adsorption capacity increases as the time of interaction with iodine solution increases. Refined 0,2 mm size grade carbon black has the best adsorption value. When an aqueous solution of 1 g/dm3 phenol was passed through the filter, the purification efficiency was about 35%; when phenol concentration was 0,1 g/dm3, purification efficiency amounted to about 85%. The filter being re-used; the absorption capacity is reduced to 50%. The absorption capacity decreases due to the sorbing micro-pore bridging. Phosphoric acid activation of spent adsorbent provides for the restoration of its sorption properties and allows its re-use.


2019 ◽  
Vol 132 (2) ◽  
pp. 96-100
Author(s):  
Evgenia A. Makarevich ◽  
◽  
Andrej V. Papin ◽  
Elizaveta V. Cherkasova ◽  
Alla Y. Ignatova ◽  
...  

TAPPI Journal ◽  
2019 ◽  
Vol 18 (5) ◽  
pp. 287-293 ◽  
Author(s):  
JANNATUN NAYEEM ◽  
M. SARWAR JAHAN ◽  
RAZIA SULTANA POPY ◽  
M. NASHIR UDDIN ◽  
M.A. QUAIYYUM

Jute cutting, jute caddis, and cutting-caddis mixtures were prehydrolyzed by varying time and temperature to get about 90% prehydrolyzed yield. At the conditions of 170°C for 60 min of prehydrolysis, the yield for 100% jute cutting was 76.3%, while the same for jute caddis was only 67.9%. But with prehydrolysis at 150°C for 60 min, the yield was 90% for jute cutting, where 49.94% of original pentosan was dissolved and prehydrolysis of jute caddis at 140°C in 60 min yielded 86.4% solid residue. Jute cutting-caddis mixed prehydrolysis was done at 140°C for 30 min and yielded 92% solid residue for 50:50 cutting-caddis mixtures, where pentosan dissolution was only 29%. Prehydrolyzed jute cutting, jute caddis, and cutting-caddis mixtures were subsequently kraft cooked. Pulp yield was only 40.9% for 100% jute cutting prehydrolyzed at 170°C for 60 min, which was 10.9% lower than the prehydrolysis at 140°C. For jute cutting-caddis mixed prehydrolysis at 140°C for 45 min followed by kraft cooking, pulp yield decreased by 3.3% from the 100% cutting to 50% caddis in the mixture, but 75% caddis in the mixture decreased pulp yield by 6.7%. The kappa number 50:50 cutting-caddis mixture was only 11.3. Pulp bleachability improved with increasing jute cutting proportion in the cutting-caddis mixture pulp.


1999 ◽  
Author(s):  
S. Gallagher ◽  
K. Cornelius ◽  
L. Steiner
Keyword(s):  

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