Modelling of a Reactive Distillation in the production process of high purity Cyclohexanone to produce caprolactam

2016 ◽  
pp. 176-181 ◽  
Author(s):  
David Lorenzo ◽  
Carlos Perez-Galvan ◽  
Cristian Triana ◽  
Aurora Santos ◽  
Arturo Romero ◽  
...  
Keyword(s):  
Production Process ◽  
High Purity ◽  
Reactive Distillation

scholarly journals Novel Hybrid Reactive Distillation with Extraction and Distillation Processes for Furfural Production from an Actual Xylose Solution

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1152
Author(s):  
Le Cao Nhien ◽  
Nguyen Van Duc Long ◽  
Moonyong Lee
Keyword(s):  
Production Process ◽  
Energy Use ◽  
Reactive Distillation ◽  
Process Efficiency ◽  
Continuous Stirred Tank Reactor ◽  
Butyl Chloride ◽  
Distillation Columns ◽  
Reactive Liquid ◽  
Pharmaceutical Industries ◽  
Furfural Production

Furfural is only derived from lignocellulosic biomass and is an important chemical used in the plastics, agrochemical, and pharmaceutical industries. The existing industrial furfural production process, involving reaction and purification steps, suffers from a low yield and intensive energy use. Hence, major improvements are needed to sustainably upgrade the furfural production process. In this study, the conventional furfural process based on a continuous stirred tank reactor and distillation columns was designed and optimized from an actual aqueous xylose solution via a biomass pretreatment step. Subsequently, a reactive distillation (RD) and extraction/distillation (ED) configuration was proposed for the reaction and purification steps, respectively, to improve the process efficiency. RD can remove furfural instantly from the reactive liquid phase and can separate heavy components from the raw furfural stream, while the ED configuration with toluene and butyl chloride used as extracting solvents can effectively separate furfural from a dilute aqueous stream. The results showed that the hybrid RD-ED process using a butyl chloride solvent saves up to 51.8% and 57.4% of the total investment costs and total annual costs, respectively, compared to the conventional process. Furthermore, environmental impacts were evaluated and compared for all structural alternatives.

A robust PI control configuration for a high-purity ethylene glycol reactive distillation column

2000 ◽  
Vol 55 (21) ◽  
pp. 4925-4937 ◽  
Author(s):  
Rosendo Monroy-Loperena ◽  
Eduardo Perez-Cisneros ◽  
Jose Alvarez-Ramirez
Keyword(s):  
Ethylene Glycol ◽  
High Purity ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Pi Control ◽  
Control Configuration

scholarly journals Design and simulation of high purity biodiesel reactive distillation process

2019 ◽  
Vol 21 (3) ◽  
pp. 1-7 ◽  
Author(s):  
Syed Sadiq Ali ◽  
Mohammad Asif ◽  
Avijit Basu
Keyword(s):  
High Purity ◽  
Fossil Fuels ◽  
Distillation Column ◽  
Reactive Distillation ◽  
Aspen Plus ◽  
Esterification Reaction ◽  
Distillation Process ◽  
Water Composition ◽  
Product Stream ◽  
Process Simulator

Abstract Biodiesel is a promising energy substitute of fossil fuels since it is produced from renewable and biodegradable sources. In the present work, reactive distillation (RD) process is designed and simulated using Aspen Plus process simulator to produce biodiesel of high purity through esterification reaction. The simultaneous reaction and separation in same unit enhances the biodiesel yield and composition in RD process. Two flowsheets are proposed in present work. In the first flowsheet, the unreacted methanol is recycled back to reactive distillation column. Biodiesel with 99.5 mol% purity is obtained in product stream while the byproduct stream comprises 95.2 mol% water, which has to be treated further. In the second flowsheet, a part of methanol recycle is split and purged. In this case, the biodiesel composition in product stream is 99.7 mol% whereas water composition is 99.9 mol% in byproduct stream, which can be reused for other process without treatment.

New Concepts for the Production of High-purity Isobutene in Coupled Reactive Distillation Columns

2001 ◽  
Vol 73 (6) ◽  
pp. 624-625 ◽  
Author(s):  
Erik Stein ◽  
Achim Kienle ◽  
Aspi Kolah ◽  
Zhiwen Qi ◽  
Kai Sundmacher ◽  
...  
Keyword(s):  
High Purity ◽  
Reactive Distillation ◽  
Distillation Columns ◽  
New Concepts

scholarly journals Production of high-purity ethyl acetate using reactive distillation: Experimental and start-up procedure

2008 ◽  
Vol 47 (9-10) ◽  
pp. 1831-1843 ◽  
Author(s):  
I-Kuan Lai ◽  
Yan-Chun Liu ◽  
Cheng-Ching Yu ◽  
Ming-Jer Lee ◽  
Hsiao-Ping Huang
Keyword(s):  
Ethyl Acetate ◽  
High Purity ◽  
Reactive Distillation ◽  
Start Up

Study of Corrosion Mechanism of Al2O3-MgO Refractories and its Effect on Cleanness of Molten Steel

2014 ◽  
Vol 1004-1005 ◽  
pp. 193-197
Author(s):  
Jun Liu ◽  
Hai Xia Feng
Keyword(s):  
Production Process ◽  
Molten Steel ◽  
Hydrogen Content ◽  
Wear Mechanism ◽  
High Purity ◽  
Corrosion Mechanism ◽  
Content Change ◽  
Bond System ◽  
The Impact

High purity AL2O3-MgO carbon-free refractories for ladle lining were investigated, this paper compared with the properties of bricks with different bond system and different production process, and study the wear mechanism, the TOC and hydrogen content change; analyzing the microstructure of residual bricks and the impact of refractories on quality of molten steel;Conclusions:The two kinds of bricks have different wear mechanism, the bricks bonded by a-bond was damaged mainly by penetration and erosion while the bricks bonded by resin was damaged by structure spalling and they have different effect on cleanness of molten steel.

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