Hydrogen and helium can form gas hydrates independently by multiple molecules entering single hydrate cavity. Molecules of Hydrogen and helium when present with other hydrate formers like methane, ethane, propane, butane etc can enter hydrate cavities already occupied by other hydrate formers. Can hydrogen and helium molecules when present with other hydrate formers enter hydrate cavities at moderate pressures upto 30 bars and temperatures above freezing point of water?
Yes, they can. Not many molecules will sneak in but they sill can as long as the gradient in chemical potentials between the outside and inside exists.
Thanks for your answer, Dr Falenty.
Gas hydrate equilibrium curve calculation module of my EQ-COMP software can calculate hydrate equilibrium curve for mixtures of nonpolar or mildly polar hydrocarbons and inorganic gases. Capabilities of this calculation module are described on https://www.eq-comp.com/hydrate-dissociation-equilibrium-curve-calculator-software/ webpage. However hydrogen and helium are not yet included as possible hydrate formers in the software.
Can you kindly suggest some research paper to simulate hydrogen and helium hydrates when hydrogen and helium are present in pure form or along with hydrate forming hydrocarbons and inorganic gases.
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