A Study on Increasing Separation Efficiency of an Industrial, Compound Distillation Column

2008 ◽  
Vol 10 (1-2) ◽  
pp. 7-18
Author(s):  
Shengjing Mu ◽  
Hongye Su ◽  
Yongyou Hu ◽  
Jian Chu
Keyword(s):  
Distillation Column ◽  
Separation Efficiency

Study on Recycling of Organic Solvents

2012 ◽  
Vol 610-613 ◽  
pp. 2372-2377
Author(s):  
Run Ze Yang ◽  
Yue Jin Li ◽  
Zhen Yu Li
Keyword(s):  
Organic Solvents ◽  
Distillation Column ◽  
Butyl Acetate ◽  
Separation Efficiency ◽  
Experimental Results ◽  
Reflux Ratio ◽  
Batch Distillation ◽  
Before And After ◽  
Separation Temperature

The research of dimethylbenzene and butylacetate from industrial spent solvent oil by batch distillation was studied, and the batch distillation experiment was by pretreated material. The effects of separation temperature and reflux ratio on separation efficiency were investigated,and compared the new tower with the old one. The experimental results showed that: when the reflux ratio R was 3, Butyl acetate and Xylene product purity were low, the R ≥ 4, the purity of the product of Xylene and Butyl acetate were significantly increased; both yield were lower with the increase of reflux ratio. When R was 4, the top temperature of the distillation column was between 109 and 111.4 °C, before and after device upgrading, Butyl acetate product purity were 90.03% and 72.88% respectively.When the top temperature was above 120 °C, the device after upgrading Xylene product purity was 98% and 94.42% before the upgrading. Both of the purity and the yield improved after device upgrading.

Separation Efficiency Optimisation of Toluene–Benzene Fraction using Binary Distillation Column

2021 ◽  
Author(s):  
Rudra Narayan Mohapatro ◽  
Ranjita Swain ◽  
Sunita Routray ◽  
Biswa Ranjan Patra ◽  
Prabhakar Sethi
Keyword(s):  
Distillation Column ◽  
Separation Efficiency

scholarly journals Effect of the angle of rotation of structured packing layers on separation efficiency in distillation column

2019 ◽  
Vol 1369 ◽  
pp. 012036
Author(s):  
A N Pavlenko ◽  
N I Pecherkin ◽  
V E Zhukov ◽  
A D Nazarov ◽  
G Meski ◽  
...  
Keyword(s):  
Distillation Column ◽  
Separation Efficiency ◽  
Structured Packing ◽  
Angle Of Rotation

Applicability of electrodialysis to the separation of sodium acetate from synthetic alkaline hardwood extract

TAPPI Journal ◽  
2015 ◽  
Vol 14 (11) ◽  
pp. 695-708 ◽  
Author(s):  
RAVIKANT PATIL ◽  
CHI TRUONG ◽  
JOSEPH GENCO ◽  
HEMANT PENDSE ◽  
ADRIAAN VAN HEININGEN
Keyword(s):  
Current Density ◽  
Sodium Sulfate ◽  
Sodium Acetate ◽  
Separation Efficiency ◽  
Feed Concentration ◽  
Initial Concentration ◽  
White Liquor ◽  
Complete Extraction ◽  
Electro Osmosis ◽  
Preliminary Separation

Our objective was to develop a process for recovering acetyl groups from industrial northeast hardwood chips. Extraction experiments showed that the white liquor charge of 6% effective alkali at 50°C and liquor-to-wood ratio of 4:1 leads to the complete extraction of acetyl groups from industrial hardwood chips. Electrodialysis was assessed as a technique for separating and concentrating sodium acetate from synthetic hardwood extract. Preliminary separation experiments using dilute sodium acetate showed that the sodium acetate can be concentrated up to approximately 24% by weight from an initial concentration of about 2% by weight. The effects of current density, feed concentration, electro-osmosis, and osmosis on the separation of sodium acetate were evaluated. Finally, selectivity experiments were performed to study the effect of various components of the white liquor on the separation of sodium acetate. Fully oxidized synthetic white liquor was used in selectivity experiments to avoid deleterious effects of Na2S. Selectivity experiments using synthetic oxidized white liquor showed a significant decrease in the separation efficiency due to the presence of sodium hydroxide, sodium carbonate, and sodium sulfate in the synthetic extract.

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