Pretreatment and Hybrid Processes

Electrochemical hydrogenation of bioprivileged cis,cis-muconic acid to trans-3-hexenedioic acid: from lab synthesis to bench-scale production and beyond

Green Chemistry ◽

10.1039/d1gc02225c ◽

2021 ◽

Author(s):

Marco Nazareno State Dell'Anna ◽

Mathew Laureano ◽

Hamed Bateni ◽

John E Matthiesen ◽

Ludovic Zaza ◽

...

Keyword(s):

Scale Production ◽

Electrochemical Hydrogenation ◽

Muconic Acid ◽

Hybrid Processes ◽

Bench Scale

The integration of microbial and electrochemical conversions in hybrid processes broadens the portfolio of products accessible from biomass. For instance, sugars and lignin monomers can be biologically converted to cis,cis-muconic...

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Separation of Dimethylformamide/H2O Mixtures Using Pervaporation-Distillation Hybrid Process

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.233-235.866 ◽

2011 ◽

Vol 233-235 ◽

pp. 866-869 ◽

Cited By ~ 1

Author(s):

Guang Lu Han ◽

Qi Zhang ◽

Jing Zhong ◽

Hui Shao ◽

Huan Ru Zhang

Keyword(s):

Aqueous Solution ◽

Separation Factor ◽

Aspen Plus ◽

Composite Membranes ◽

Hybrid Process ◽

Hybrid Processes ◽

Operation Temperature ◽

The Cost

Three kinds of commercial PVA composite membranes with different crosslinking degrees (PVA-1, PVA-2 and PVA-3) were used to separate DMF/H2O mixtures. Their pervaporation performance was investigated at different operation temperatures. The results showed that PVA-1 was the most suitable one for separating DMF/H2O mixtures. When operation temperature was 60°C and downstream pressure was lower than 6kPa, flux reached to 0.59 kg·m-2·h-1 and separation factor was 33 for PVA-1 membranes. Aspen Plus® was applied to simulate the normal distillation for retentate from pervaporation unit. Comparing with the two-effect distillation, the cost of concentrating DMF could be reduced 16.2% to 19.2% for DMF aqueous solution with different composition by hybrid processes. The cost would be the lowest for a hybrid process that concentrated the feed into 50wt% by pervaporation firstly, then concentrated retentate to 99.6wt% by two-effect distillation

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