3 replies to this topic

[Alpe]

Hi, I am simulating different cases of hydrate formation (in natural gas streams) including SI and SII structures with the CPA Electrolyte model available in Prode Properties, I am not including SH structures as these are not common, according several papers,  do you have examples of  of  H (sH) formation in natural gas streams ?

Thanks.

[PaoloPemi]

it depends from composition, if your streams include  (relatively) heavy hydrocarbons such as nexohexane, cycloheptane etc. these can originate SH structures, however, as general rule, I can agree that it is not common to include these structures....

[marchem]

Alpe,

you can find data in books as Clathrate Hydrates of Natural Gases by Sloan,

 

many papers have been published on the subject , I have this

 

Structure H hydrate phase equilibria of paraffins, naphthenes, and olefins with methane by Mehta & Sloan

 

but many others available... are you looking for measured data

or wish to receive comments about inclusion of H structures in multiphase equilibria flash operation in Prode Properties ?

[Alpe]

thanks PaoloPemi and Marchem,

I am interested to know if it's a common practice to test for formation of H structures (in addition to I, II)