Abstract
We present molecular simulation results of solubility and self-diffusion of carbon dioxide and hydrogen sulfide in linear polyethylene melts. Simulations were carried out at 433 K and pressures in the range 0.1–10 MPa. Solubilities were computed using Monte Carlo simulations in the osmotic ensemble, with constant number of polymer chains, pressure, temperature and gases chemical potential. Diffusion coefficients were obtained from equilibrium molecular dynamics. It is found that hydrogen sulfide has a higher solubility in polyethylene than carbon dioxide at a given pressure. Self-diffusion coefficients are found to slightly increase with increasing penetrant weight fraction.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
