Simulation of condensing unit of liquor in Mazandaran wood and paper industry | ||
| تحقیقات علوم چوب و کاغذ ایران | ||
| Article 10, Volume 32, Issue 4 - Serial Number 61, November 2017, Pages 565-575 PDF (773.56 K) | ||
| Document Type: Research Paper | ||
| DOI: 10.22092/ijwpr.2017.109327.1387 | ||
| Authors | ||
| Soheil pourmahmoudi1; Iman Torabi vostikulaee1; Elham Omidbakhsh Amiri* 2 | ||
| 1BSc., student of Chemical Engineering Group, Faculty of Engineering, University of Mazandaran, Babolsar, Iran | ||
| 2Assistant Prof., of Chemical Engineering Group, Faculty of Engineering, University of Mazandaran, Babolsar, Iran | ||
| Abstract | ||
| Mazandaran wood and paper industry is known as the largest manufacturer of paper in the Middle East. Black liquor is liquid product of pulp cooking chemical process, which is much polluted because of some organic and inorganic compounds. So, chemical and energy recovery of black liquor are one of the interesting studies. There are different ways for this one among them concentration method of liquor is used in Mazandaran wood and paper industry. In this work, Condensing unit of liquor was simulated by Hysys software. Then, simulation results were compared with factory data and acceptable results were obtained. In the next step, the effect of operating conditions of the two main feed streams was studied. The results showed that with increasing of dilute liquor temperature, concentration of output liquor flow increases as per 40°C increasing of temperature, almost 28 percent of the condensed value increases. Also, by 10 kPa increasing of the dilute liquor pressure, approximately 39% of condensed value decreases. By increasing the pressure and flow rate of steam, concentration of output liquor somewhat increases, while, this increasing for flow rate, is initially steep and then less steep. The effect of steam temperature on the concentration of output liquor at different pressures must be checked individually. | ||
| Keywords | ||
| simulation; Evaporator; LIGNIN; Wood and Paper | ||
| References | ||
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