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HYSYS mixed-refrigerant natural gas liquefaction process! ! !

2007-12-04View Original

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I am currently using HYSYS to simulate the natural gas liquefaction process with mixed refrigerants, and I have encountered some problems. I really hope that experts familiar with HYSYS can offer me some guidance and suggestions. Thank you in advance! The known parameters for simulating this process are as follows: (1) the physical property constants of each component in natural gas and the mixed refrigerant; (2) the inlet pressure, temperature of natural gas, and the molar fractions of various components; (3) the storage temperature and pressure of LNG; (4) the pressure, temperature, and molar fractions of the high- and low-pressure refrigerants at the inlet sides of the first heat exchanger; (5) the temperature differences at the hot sides of each heat exchanger. Question: I’m not sure whether these parameters are sufficient When simulating a certain process, how do you determine what all the known parameters are? How can the parameters of the unit module be set more reasonably? For example, the throttle valve. Thank you again to the experts for their guidance! This post was last edited by HaiChuanDeFeng on 2007-12-5 21:48.]
Reply #22007-12-05
Natural gas liquefaction technology relies primarily on the Joule-Thomson effect, converting energy into cold energy through compression and decompression cycles. This process involves several cycles, so it is necessary to use a recycle module for iterative calculations; otherwise, the results will definitely be incorrect. The above parameters should be sufficient; if they are used for design calculations, there might still be issues if used for process optimization. Refer to the valve’s manual for setting the throttle valve parameters; do not define them on your own.
Reply #32008-09-25
Could you make De less prominent and provide a simulation file for a natural gas-based mixed refrigeration process?
Reply #42008-09-25
http://bbs.hcbbs.com/viewthread.php?tid=245846&extra=page%3D1&frombbs=1
Reply #52008-09-26
I like it, I support it......:) :)

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