2 replies to this topic

[Abi]

Hello All,

Has anybody here programmed Mann's method for predicting structure I and II hydrates.
My scenario is given pressure and composition solve for hydrate temperature.
I seem to be getting wrong answers for structure II hydrates with H2S. All other cases are OK

Thanks,
AT

[ankur2061]

Abi,

There are several posts on Hydrate formation conditions on the forum. Use the search facility by typing the keyword as hydrate.

Some links of prior posts are given below:

http://www.cheresour...h__1#entry34068

http://www.cheresour...h__1#entry39573

http://www.cheresour...h__1#entry41204

http://www.cheresour...h__1#entry33543

Additionally try to get the book:

"Natural Gas Hydrates: A Guide to Engineers" by John Carroll

This book is the bible on Hydrates.

Regards,
Ankur.

[Abi]

Hi Ankur,

Thanks for the links. Some of the posted material is intriguing.
I have other hydrate book by Dr. Sloan. The vapour-soild equilibrium ratio method listed in the book (based on Katz's work) is not as expansive as what is called as Mann's method.
The reference for Mann's method is listed below:

Vapor Solid Equilibrium Ratios for Structure I and Structure II Natural Gas Hydrates, S. L. Mann, L. M. McClure, E. D. Sloan, and F. H. Poettmann, Colorado School of Mines, December 1988

Dr. Sloan recommended that I obtain the Mann's thesis from the university library. There were no pdfs back then... so it's my last resort.
Anyway I will keep searching..

Regards,
Abi