OBTAINING ACTIVATED CARBON BY CO-THERMOLYSIS OF RICE STRAW AND OIL SLUDGE
Keywords:
carbonization, activation, rice straw, oil sludge, activated carbonAbstract
A method for producing activated carbon by co-thermolysis of rice straw and oil sludge is proposed. Co-thermolysis of rice straw and oil sludge was carried out in a tubular furnace made of stainless steel with a height of 250 mm and an inner diameter of 25 mm. A mixture of 9 g of rice straw and 1 g of oil sludge is placed in the oven, carbonization is carried out at temperatures of 350-500ºС. Activation of the carbonizate was carried out with water vapor at ratios of 1-4:1 and at temperatures of 750-900°C. The microstructure of the obtained activated carbon was studied by scanning electron microscope. The optimal condition for the production of activated carbon by co-thermolysis of rice straw and oil sludge is a carbonization temperature of 500°C with a duration of 100 minutes, activation of carbonization at a temperature of 850°C and a ratio of water:carbonizate = 2:1. The iodine adsorption activity of activated carbon obtained in this way is 94.03%. The resulting product corresponds to the activated carbons BAU-MF, BAU-A and BAU-Ats.
References
[1] Kinle H., Bader Je. Aktivnye ugli i ih promyshlennoe primenenie. L.: Himija, 1984. 216 p.
[2] Mansurov Z.A., Aknazarov S.H., Bijsenbaev M.A., Tulejbaeva A.S., Nuraly A.M., Beksejtova K.S., Pavljukov A.V. Patent na poleznuju model' №2348. Jenterosorbent. Promyshl. sobstvennost'. Ofic. bjull. 15.09.2017. № 17.
[3] Nauryzbaev M.K., Efremov S.A., Nechipurenko S.V., Akbaev T.A., Kim S.P., Korshen- ko V.S. Patent na poleznuju model' №1459. Sposob poluchenija aktivirovannogo uglja. Promyshl. sobstvennost'. Ofic. bjull. 16.05.2016. № 5.
[4] Bing Yang, Yucheng Liu, Qingling Liang, Mingyan Chen, Lili Ma, Lingli Li, Qian Liu, Wenwen Tu, Dawei Lan, Yuanyuan Chen. Evaluation of activated carbon synthesized by one-stage and two-stage co-pyrolysis from sludge and coconut shell // Ecotoxicology and Environmental Safety. 2019. Vol. 170. P. 722-731. DOI: 10.1016/j.ecoenv.2018.11.130.
[5] Appazov N.O., Zhusupbek U.A., Turmanov R.A., Ljubchik S.B., Ljubchik A.I., Ljubchik S.I., Lygina O.S., Bajnazarova S.R., Bazarbaev B.M. Patent na poleznuju model' №3892. Sposob poluchenija aktivirovannogo uglja iz risovoj solomy i sheluhi. Promyshl. sobstvennost'. Ofic. bjull. 19.04.2019. № 16.
[6] Appazov N.O., Turmanov R.A., Bajnazarova S.R., Dijarova B.M., Shuragazieva A.T., Dzhiembaev B.Zh., Lygina O.S., Ljubchik A.I., Kurmanbaev R.H. Patent na poleznuju model' №3821. Sposob poluchenija aktivirovannogo uglja iz risovoj sheluhi i nefteshlama. Promyshl. sobstvennost'. Ofic. bjull. 05.04.2019. № 14.
[7] GOST 6217. Ugol' aktivnyj drevesnyj droblenyj. Tehnicheskie uslovija. M.: IPK Izdatel'stvo standartov, 2003.
[8] GOST 17219. Ugli aktivnye. Metod opredelenija summarnogo ob#ema por po vode. M.: Izdatel'stvo standartov, 1988.
[9] GOST 12597. Sorbenty. Metod opredelenija massovoj doli vody v aktivnyh ugljah i katalizatorah na ih osnove. M.: Izdatel'stvo standartov, 1989.
[10] GOST 16190. Sorbenty. Metod opredelenija nasypnoj plotnosti. M.: Izdatel'stvo standartov, 1970.
