Comparison between two simulation patterns at HRU membrane unit: Iranian and Chinese Simulations

In this study, two membrane based single-stage hydrogen recovery units (HRU) designed by RIPI researchers evaluated by their performance parameters and compared with a Chinese simulation in one of the Iranian petrochemical companies. In the Iranian simulation of HRU, types of BH and A of industrial scale module with maximum diameter and length (8×118 in) were applied. The Iranian design used from lower temperature for water removing, before entering to the membrane section. Therefore, higher heating energy was applied, in the RIPI simulation, to set the feed gas temperature of membrane unit. Because of higher component permeation of module type BH related to type A, higher and lower H2 and CH4 recovery were obtained respectively for this case. The Chinese modeling was based on two-stage membrane unit, which resulted in two permeate streams that can be fed to two different stages of a compression unit.

کلیدواژه ها:

H2 recovery ، Permeance ، Polyimide ، Membrane module ، HRU unit ، Hollow fiber