Study of cost minimization of separation process of a multi components gas mixtures through the hollow fiber membrane / Estudo da minimização do custo de um processo de separação de misturas gasosas multicomponentes atraves da membrana de fibra oca

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The separation of gas mixtures is made under the objective of obtaining one or more representatives in the highly pure form. Four methods can be used in gas separation: absorption, adsorption, distillation cryogenics and membranes. The economy of the process will determine which method will be used in a specific application (Scott, 1995). The modem era of gas-separation membrane was introduced in the early 1980s, when polymeric membranes became economically viable. (Robeson, 1999). Nowadays, membranes separation is used wide in industrial scale for the production of nitrogen in a high purity level from the air. This is an essential method for the inertization of the atmosphere air for fruits and vegetables storage, quimicos reactors and production of NH 3, as well as for safety when operating inflammable liquids (Spillman, 1989). The objective of this work is to optimization the cost related to the process of separation of multicomponents gas mixtures using membrane of hollow fiber. The optimization was made using "Constrained Rosenbrock (Hill Algorithm)", in order to obtain a high quality product with a reduced cost. For the process cost optimization the following data supplied for the program of Caramello (2002) is needed: feeding and permeated pressure, flow tax next to the feeder, purity and recovery. The equation of the cost used consists of: installation cost and operational cost. The total cost consists of the permeation module cost, the membrane substitution cost (assuming it useful life of the membrane to each 3 years), the electricity cost and finally the cost of the compressor installation. One first optimized two parameters: amount of membranes (QM) and pressure of feeding (P fter that fixed amount of membranes and optimize the feeding pressure thus verifying itself for each analyzes the cost optimized for the following purity: 85%, 90%, 95% and 99%

ASSUNTO(S)

hollow fiber membrane separation of gas separação de membrana separation of n2 separação (tecnologia) otimização

ACESSO AO ARTIGO

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