Sponsor(s): Chemical Industry and Engineering Society of China; Chemical Industry Press
12 issues per year
Current Issue: Issue 03, 2020
CIESC Journal is supervised by China Association for Science and Technology and sponsored by Chemical Industry and Engineering Society of China, and Chemical Industry Press. The predecessor of the journal is Journal of China Chemical Industry Association launched in 1923 and Chemical Engineering launched in 1934. The journal aims at reflecting the major achievements of fundamental research and application in chemical and engineering and other related fields, as well as new technologies and methods. Its scope covers thermodynamics, separation engineering, process system engineering, bio-engineering and chemical engineering, energy and environmental engineering, material chemical engineering and nanotechnology, and modern chemical technology. The journal is included in CA, JST, Pж(AJ), EI, CSCD.
Director: Zhao Yingli
Preparation of self-assembled graphene oxide/nano TiO 2 composite nanofiltration membrane for inkjet printing dye
CIESC Journal,2020,Vol 71,No. 03
The technology of digital inkjet printing requires inkjet printing dye with high purity and low salt. Based on the preparation of GO/nano TiO 2 self-assembled nanofiltration membrane, the size of nano TiO 2 particles and the blending ratio with GO were explored. The optimal GO/TiO 2 composite nanofiltration membrane is obtained in which the TiO 2 particle size is 60 nm and the blending ratio with GO is 1:1. The pure water permeation is 10.69 L/(m 2·h·bar), the rejections of NaCl and Na 2SO 4 are 12.6% and 15.7% respectively, and the rejections of Eriochrome black T, Congo red and Coomassie brilliant blue R are all higher than 99%. The home-made continuous constant volume diafiltration device was used to conduct the dye desalination and concentration experiment. The concentration of obtained ink is increased from the initial 2.0 g/L to 9.74 g/L, and the concentration of NaCl and Na 2SO 4 is reduced from the initial 10 g/L to 5.3 mg/L and 11 mg/L respectively, meeting the requirements of digital inkjet printing dye.
Simulation and optimization of reactive distillation column for ethanolamine production considering different products selectivity
CIESC Journal,2020,Vol 71,No. 03
A reactive distillation (RD) process for the production of ethanolamine from ethylene oxide (EO) and ammonia catalyzed by water was presented. The feasibility and maximum selectivity of different products in a reactive distillation column were discussed. Aspen Plus software package was used to simulate the process. The effects of operating pressure, water feed flow, molar feed ratio of NH 3 to EO, boilup ratio and EO feed location on the RD column performance were investigated and the optimal operating parameters considering different product selectivities were obtained. The results showed that the MEA selectivity could be increased with a larger NH 3/EO ratio, water feed flow and boilup ratio, while the DEA selectivity could be increased with a smaller NH 3/EO ratio, water feed flow and boilup ratio. Under optimum conditions, the selectivity of MEA and DEA could reach 70.30% and 41.89%, respectively. The studies indicated that the production of ethanolamine by RD had more operational flexibility and obvious advantages compared with the literature methods.