Dehydration of Industrial Byproduct Solutions for Recycling via Pervaporation-Adsorption Hybrid Process

Date

2018-02-14

Author

Büküşoğlu, Emre
Kalıpçılar, Halil
Yılmaz, Levent

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

222
views

0
downloads

Dehydration of used solvents in the printing and packaging industry is required in order to reuse or increase the commercial value of the solvents. In this study, a pervaporation-liquid-phase adsorption hybrid process for dehydration of a low-value byproduct solution obtained from a real operation was examined. The byproduct solution contained water varying in the range of 1-11.5 wt %, and the majority of the rest is ethanol and isopropanol with minor components such as ethyl acetate and methoxy propanol. We measured the flux and separation factor of two commercial membranes as a function of process parameters such as feed and membrane module temperature, feed flow rate, and permeate side pressure in addition to the feedwater and ethyl acetate concentration. We observed higher flux and separation factors at high temperatures and low permeate side pressures. PERVAP 2201 membranes showed higher flux with a reasonable separation factor toward water. PERVAP 2211 showed higher water separation factor but lower flux compared to PERVAP 2201. We performed concentrated-mode experiments to simulate a long-term use (similar to week) of the membranes, which clearly demonstrated a successful removal of water from the byproduct solution below 98.5 wt %. Finally, application of liquid-phase adsorption on the predried solution (using pervaporation) revealed a successful dehydration to 0.04 wt % water.

Subject Keywords

Membrane Pervaporation, Water Mıxtures, Isopropanol dehydration, Aqueous-solution, Lactic-Acid, Separation, Solvents, Ethanol, Esterification, Butanol

URI

https://hdl.handle.net/11511/48553

Journal

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

DOI

https://doi.org/10.1021/acs.iecr.7b04306

Collections

Department of Chemical Engineering, Article

Suggestions

OpenMETU
Core

Solvent recovery from photolithography wastes using cellulose ultrafiltration membranes Savaş, Aygen; Çulfaz Emecen, Pınar Zeynep (2022-04-05) Solvent recycling and reuse are indispensable for ensuring a sustainable chemical industry and circular economy. In this study we report the fabrication of cellulose ultrafiltration membranes and their application in recovery of propylene glycol methyl ether acetate (PGMEA) used as developer solvent in SU-8 photolithography. Cellulose membranes were fabricated via alkaline hydrolysis of cellulose acetate membranes in aqueous NaOH. Membrane permeance and molecular weight cut-off (MWCO) were tuned via changin...
Dehydration of alcohol solutions obtained from a solvent recovery process by pervaporation Büküşoğlu, Emre; Yılmaz, Levent; Department of Chemical Engineering (2010) Solvent recovery is gaining importance in the chemical production processes to reduce the costs and because of environmental concerns. Therefore separation schemes for recovery and recycle of solvents used in printing and packaging industry were developed. However, a low value by-product, mainly ethyl alcohol and isopropanol, is obtained during the solvent recovery process. If the water concentration of this mixture is decreased below 0.1% by weight, the value of it increases significantly. To dehydrate thi...
Preparation of ZIF-8 loaded PVA and PES mixed matrix membranes for dehydration of ethanol solutions Şenyurt, Elif İrem; Kalıpçılar, Halil; Yılmaz, Levent; Department of Chemical Engineering (2015) Solvent recovery is an important issue in chemical industry when low product cost is desired and also environmental concerns are considered. The conventional methods for solvent recovery are extractive distillation, adsorption, extraction and absorption. However, these methods require excessive amount of energy, cause product contamination due to additional components and need harsh conditions. Pervaporation separation is independent of the vapor-liquid equilibrium; therefore, it is a suitable technique esp...
USE OF BORIC ACID AS A BINDER FOR BRIQUETTING SOME BORON MINE WASTES AND THEIR CALCINED PRODUCTS ŞENER, SAVAŞ; ÖZBAYOĞLU, GÜLHAN; Ozdemir, Zeynep (2010-01-01) In this study, boric acid as a binder for briquetting some boron mine wastes, such as colemanite and ulexite fines and calcined products, which do not meet the market specifications with respect to particle size, were investigated. Effects of water and binder contents, applied pressure, and curing and drying conditions on the briquette quality were evaluated in terms of mechanical strength, water-proofing characteristics and wearing resistance. The best briquettes were obtained at 62.4 MPa pressure (cured a...
Dehydration of aqueous aprotic solvent mixtures by pervaporation Sarıalp, Gökhan; Kalıpçılar, Halil; Yılmaz, Levent; Department of Chemical Engineering (2012) Aprotic solvents are organic solvents which do not easily react with a substance dissolved in it and they do not exchange protons despite of their high ion and polar group dissolving power. Therefore, this characteristic property makes aprotic solvents very suitable intermediates in many industries producing pharmaceuticals, textile auxiliaries, plasticizers, stabilizers, adhesives and ink. Dehydration of these mixtures and recirculation of valuable materials are substantial issues in industrial application...

Citation Formats

E. Büküşoğlu, H. Kalıpçılar, and L. Yılmaz, “Dehydration of Industrial Byproduct Solutions for Recycling via Pervaporation-Adsorption Hybrid Process,” INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, pp. 2277–2286, 2018, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/48553.