Análise de um regenerador de ácido clorídrico sob a óptica da termofluidodinâmica e termoeconomia

Abstract

Under the perspective of thermodynamics and the laws of heat and mass transfer, this paper presents the analysis of the operation of a hydrochloric acid regenerator installed in an industry of the electrical hardware segment. We investigate the thermal and mass efficiencies, with the goal to improve system performance and economically viable operation. Initially was made a thermoeconomic system analysis, assigning the exergetic and monetary value to input currents and output of each equipment aiming to eliminate Waste and thus reduce the cost of operation. Then, Was used the principles of heat and mass transfer, the analysis Was made of the distillation column, with the goal to understand the mechanism of heat and mass transfer of steam. This analysis is aimed at understanding and suggest modifications to the system in order to eliminate the dead time at the beginning of operation and drag acid With the Water recovered. And was made an estimate of heat losses by not isolating the heat exchanger, seeking to justify or not the possibility to isolate it thermally. Finally, we managed to reach the thermoeconomic feasibility of this system by the partial replacement of boiler fuel. The heat Wasted by not insulating the heat exchanger Was found to be insignificant, the filling of the column complies its goal of stopping any flow induced by the circulator and With respect to drag acid a feasible solution has not been found to this problem.