000 03160naa2a2200433 4500
001 575628
005 20231030032410.0
035 _a(RuTPU)RU\TPU\prd\274482
035 _aRU\TPU\prd\274481
090 _a575628
100 _a20171017a2017 k y0rusy50 ba
101 0 _aeng
102 _aRU
135 _adrcn ---uucaa
200 1 _aKinetic study of synthesis of bio-fuel additives from glycerol using a hetropolyacid
_bElectronic resource
_fSravanthi Veluturla [et al.]
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: p. 341 (20 tit.)]
330 _aConcerns about the ever increasing quantities of glycerol produced as a by-product of the process of manufacture of bio-diesel serve as a fuel for research about the alternative uses of glycerol. The esterification of glycerol with acetic acid over Cesium supported heteropolyacid (CsPWA) serving as the catalyst was carried out. The products obtained were mono, di and tri acetins which have wide application as biofuels. A series of experiments were carried out with CsPWA as catalyst and parameters considered for studies were temperature, molar ratio of reactants (acetic acid:glycerol) and the catalyst loading weight percent. Each parameter was varied keeping the other two constant and the results were recorded. Temperature was varied from 80°C to 110°C; molar ratio of glycerol to acetic acid is between 3:1 and 9:1 and catalyst loading of 3%w/w to 7%w/w. The yield and conversion varied for different conditions, but in general, the yield of diacetin and triacetin increased with time. Optimum parameters were adjudged to be 110°C with a molar ratio of 9:1 of the reactants and catalyst loading being 5% weight of reaction mixture where maximum glycerol conversion of 98% was obtained. The results obtained indicate that the esterification of glycerol with acetic acid is a consecutive reaction and the kinetic model was developed based on homogeneous first order reaction series by optimization method using MATLAB, and rate constants (k1, k2 and k3) were determined. From the rate constants at different temperatures, using Arrhenius equation the activation energies (E1, E2 and E3) were also determined.
461 1 _0(RuTPU)RU\TPU\prd\247369
_x2405-6537
_tResource-Efficient Technologies
_oelectronic scientific journal
_fNational Research Tomsk Polytechnic University (TPU)
_d2015-
463 1 _0(RuTPU)RU\TPU\prd\274446
_tVol. 3, iss. 3
_v[P. 337-341]
_d2017
610 1 _aтруды учёных ТПУ
610 1 _aэлектронный ресурс
610 1 _aesterification
610 1 _abiofuel
610 1 _aproduct distribution
610 1 _aactivation energy
610 1 _aэтерификация
610 1 _aбиотопливо
610 1 _aкинетическая модель
610 1 _aэнергия активации
701 0 _aSravanthi Veluturla
_gKailas
701 0 _aArchna Narula
701 0 _aSubba Rao D
701 1 _aShetty
_bS. P.
_gSuniana
801 1 _aRU
_b63413507
_c20090623
_gPSBO
801 2 _aRU
_b63413507
_c20180831
_gPSBO
856 4 _uhttp://earchive.tpu.ru/handle/11683/50311
942 _cBK