The results of a study of thermal fractionation in columns having vortex contact stages and stages made of plates are presented. The dependencies of the efficiency of adiabatic and thermal fractionation columns on the equilibrium curve slope for…
We describe herein the design of a small AC electrostatic model coalescer for investigating coalescence efficiency of water in oil emulsions. The function of the model coalescer is tested on emulsions with different water cuts. In the coalescer,…
Summary form only given. Recovery of natural gas liquids (NGL) has become more and more economically attractive as a number of components in natural gas are often separated from the bulk gas and sold separately. There are numerous process…
Modular multivariable controllers use interconnections of single process variable-multiple control effort controllers (i.e. Coordinated Controllers) plus logic to control multiple, possibly constrained, process variables with multiple, constrained,…
We propose a method to use historical data to improve disturbance estimation in dynamic matrix control. It is proposed to compute the Kalman gain matrix of a step response model directly from plant data through a spectral or state-space realization.…
According to the low yield of propylene existing in gas fractionation device due to higher C2 content in LPG, the factors affecting on LPG quality in the absorbing-stabilizing system were analyzed. Some technics such as optimization of operating…
In-site permeability test was carried out in order to find the permeability coefficient in the ground of the 7 companies (Research Institute of Petroleum Industry, Oil Exploration Operations Company, Commercial Storage, Iranol Company, Distribution…