TY  - JOUR
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85070329800&doi=10.1016%2fj.jiec.2019.06.017&partnerID=40&md5=364f7df9c8ff90d71989d4813ad63330
A1  - Yaqub, S.
A1  - lal, B.
A1  - Kok Keong, L.
JF  - Journal of Industrial and Engineering Chemistry
VL  - 79
Y1  - 2019///
N2  - In this work, the effect of biodegradable polymers, i.e. pectin (PC), sodium-carboxymethyl cellulose (Na-CMC), tapioca starch (TS) and dextran (DX) on thermodynamics and kinetics of CO2 hydrates are evaluated on sapphire hydrate reactor. The CO2 hydrate liquid vapour equilibrium (HLwVE) data is evaluated in the presence of biopolymers (1.5 wt) using isochoric T-cycle method at temperature and pressure ranging from 278.7 to 283.0 K and 2.3 to 4.3 MPa respectively. The effect of biopolymers on HLwVE curve is reported by measuring average increment temperature (Î?Ŧ). The constant cooling method is used to evaluate the kinetics of CO2 hydrates at 4.3 MPa in the presence of biopolymers (0.12â??1.5 wt) at 274.15 K and 277.15 K. The inhibition effect of biopolymers on the kinetics of CO2 hydrate is reported by measuring induction time, hydrate formation rate and amount of gas consumed. The kinetic inhibition strength of biopolymers is compared with poly-N-vinylpyrrolidone (PVP) and with two non-commercial inhibitors, i.e. glycine and tetra-methyl ammonium chloride (TMACl) through relative inhibition strength (RIS). Results reveal that DX shows maximum increment temperature of 0.36 K. While PC and Na-CMC delayed CO2 hydrate nucleation for 423 and 181 min respectively. Additionally, biodegradation study on biopolymers indicates that, compared to PVP, biopolymers are easily biodegradable and show potential for gas hydrate offshore applications. © 2019 The Korean Society of Industrial and Engineering Chemistry
KW  - Amino acids; Biodegradability; Biodegradable polymers; Biodegradation; Biomolecules; Biopolymers; Carbon dioxide; Chlorine compounds; Dyes; Hydration; Kinetics; Offshore oil well production; Sapphire; Sodium compounds; Temperature
KW  -  CO2 hydrates; Flow assurance; Liquid-vapour equilibria; Poly-N-vinylpyrrolidone; Sodium carboxymethyl cellulose; Temperature and pressures; Tetramethylammonium chloride; Thermodynamics and kinetics
KW  -  Gas hydrates
KW  -  Amino Acids; Biodegradability; Biodegradation; Carbon Dioxide; Chlorine Compounds; Dyes
ID  - scholars11089
EP  - 145
SN  - 1226086X
PB  - Korean Society of Industrial Engineering Chemistry
N1  - cited By 24
SP  - 131
TI  - Thermodynamic and kinetic effect of biodegradable polymers on carbondioxide hydrates
AV  - none
ER  -