Densities and phase equilibriums of aluminum chloride-lithium chloride melts. 2. Two-liquid-phase region

1983 ◽  
Vol 28 (1) ◽  
pp. 34-36 ◽  
Author(s):  
Ronald A. Carpio ◽  
Armand A. Fannin ◽  
Fred C. Kibler ◽  
Lowell A. King ◽  
Harald A. Oye
1982 ◽  
Vol 27 (2) ◽  
pp. 114-119 ◽  
Author(s):  
Armand A. Fannin ◽  
Lowell A. King ◽  
David W. Seegmiller ◽  
Harald A. Oeye

1974 ◽  
Vol 19 (3) ◽  
pp. 266-268 ◽  
Author(s):  
Armand A. Fannin ◽  
Fred C. Kibler ◽  
Lowell A. King ◽  
David W. Seegmiller

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 413
Author(s):  
Sandra Lopez-Zamora ◽  
Jeonghoon Kong ◽  
Salvador Escobedo ◽  
Hugo de Lasa

The prediction of phase equilibria for hydrocarbon/water blends in separators, is a subject of considerable importance for chemical processes. Despite its relevance, there are still pending questions. Among them, is the prediction of the correct number of phases. While a stability analysis using the Gibbs Free Energy of mixing and the NRTL model, provide a good understanding with calculation issues, when using HYSYS V9 and Aspen Plus V9 software, this shows that significant phase equilibrium uncertainties still exist. To clarify these matters, n-octane and water blends, are good surrogates of naphtha/water mixtures. Runs were developed in a CREC vapor–liquid (VL_ Cell operated with octane–water mixtures under dynamic conditions and used to establish the two-phase (liquid–vapor) and three phase (liquid–liquid–vapor) domains. Results obtained demonstrate that the two phase region (full solubility in the liquid phase) of n-octane in water at 100 °C is in the 10-4 mol fraction range, and it is larger than the 10-5 mol fraction predicted by Aspen Plus and the 10-7 mol fraction reported in the technical literature. Furthermore, and to provide an effective and accurate method for predicting the number of phases, a machine learning (ML) technique was implemented and successfully demonstrated, in the present study.


Author(s):  
Hassan S. Mumtaz ◽  
Grafton Corbett ◽  
Matthew Reagan ◽  
Warren D. Seider ◽  
Leonard A. Fabiano ◽  
...  

Author(s):  
Wang Bolong ◽  
Li Weihua ◽  
Jia Haijun ◽  
Li Jun ◽  
Hao Wentao

Abstract Small reactors have received more and more attention for their high safety, reliability, low power density, and short construction period. And the gas-steam pressurizer is widely used in small reactors due to its characteristics of simple structure, saves the heating and spray equipment, and prevents the coolant from boiling. The gas-steam pressurizer is a pressure control equipment for the reactor coolant system, and its characteristic of transient response is an important factor that affect operation stability of nuclear reactor systems. An experimental system was established to study the effect of pressure response for an insurge transient and influence factors were analyzed quantitatively. Experimental investigation shows that for the gas-steam pressurizer, the increase of coolant loading capacity (insurge) can cause system pressure rising. And the change of system pressure has much consistency with the change of liquid level and gas space temperature. The liquid phase exists temperature fluctuations and overall shows a downward trend during the insurge transient. And there exists a temperature gradient from bottom to top in the pressurizer liquid phase region during the insurge transient. The change of water vapor quantity curve is the oscillating curve during the transient and water vapor quantity is in a decreasing trend overall during the insurge transient. What’s more, the experiments also analyzed the pressure response and temperature response during the insurge transient.


Sign in / Sign up

Export Citation Format

Share Document