Transmission of butanol isomers in pervaporation based on series resistance model

Zuo, Chengye; Hindley, Jake; Ding, Xiaobin; Gronnow, Mark; Xing, Weihong; Ke, Xiao

doi:10.1016/j.memsci.2021.119702

Cited by 14 publications

(6 citation statements)

References 38 publications

(52 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Isobutanol and NaCl were from Sinopharm Chemical Co. Ltd., China. PDMS flat composite membranes were produced by Nanjing Jiusi High-Tech Co., Ltd., China [27]. The membrane consists of PDMS top layer with different thickness and crosslinking ratio, polyvinylidene fluoride (PVDF) intermediate layer with mean pore size of 76 nm and non-woven fabrics substrate layer.…”

Section: Methodsmentioning

confidence: 99%

“…1. Its equipment is set similar to the previous work [27], including heating system (water bath and feed tank), membrane module (membrane area is 153.86 cm 2 ), cold trap, vacuum pump. Moreover, the peristaltic pump allows tangential flow through membrane module at a rate of 68 L•h − 1 (Reynolds≈253.8).…”

Section: Pervaporationmentioning

confidence: 99%

“…It is worth noting that if only liquid evaporation occurs during PV, its theoretical salt rejection should be 100% [11]. However, it can be known that the components enter PDMS layer in a liquid state inferred from the series resistance model, and then vaporize in porous support [27]. Consequently, the hydrated ions of NaCl may pass through the PDMS layer and then crystallize in porous support.…”

Section: Pervaporationmentioning

confidence: 99%

See 2 more Smart Citations

Transmission of sodium chloride in PDMS membrane during Pervaporation based on polymer relaxation

Zuo

Ding³

et al. 2022

Journal of Membrane Science

Self Cite

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 99%

Section: Pervaporationmentioning

confidence: 99%

Section: Pervaporationmentioning

confidence: 99%

See 1 more Smart Citation

Transmission of sodium chloride in PDMS membrane during Pervaporation based on polymer relaxation

Zuo

Ding³

et al. 2022

Journal of Membrane Science

Self Cite

View full text Add to dashboard Cite

“…Recently, some alternative fuels from renewable resources have been investigated, such as 1-butanol and higher primary alcohols 8 . These biofuels arise not only as more favourable alternatives than ethanol but also as less susceptible to phase separation being more hydrophobic 9 .…”

Section: Introductionmentioning

confidence: 99%

Low-temperature selective ethanol upgrading to primary or secondary alcohols by homogeneous catalysis

Padilla

Mello

et al. 2022

Preprint

View full text Add to dashboard Cite

Ethanol is one of the most promising renewable resources for the production of key industrial commodities. Herein, we present the first direct and selective conversion of ethanol to either primary or secondary alcohols, or to hydrocarbons, using ruthenium PNP pincer complexes [(RPNP)RuHXCO] (R= iPr, Ph, Cy, tBu; X = Cl, H-BH3) as catalysts. Using phenyl substituted phosphines leads to the selective produc-tion of secondary alcohols. Hence, employing [(PhPNP)RuH(Cl)CO] (Ru-1) as a catalyst in ethanol, containing 20 mol% of NaOEt, at 115 ⁰C leads to 89% selective production of secondary alcohols over pri-mary alcohols. A yield of 12% of 2-butanol, and in total 22% of secondary alcohols, was achieved. In addition, minor amounts of 2 butenes/butane (≤5%) were observed in the gas phase. On the contrary, when using bulky phosphine substituents, such as t-butyl, the selectivity completely shifts toward primary alcohols. Thus, using [(tBuPNP)RuH(Cl)CO] (Ru 5) leads to >99% selectivity of 1 butanol (13% yield) over secondary alcohols at 115 ⁰C. In fact, the catalytic system is highly competitive for producing 1-butanol with 22% yield obtained at 130 ⁰C, a temperature significantly lower than previously re-ported systems. Our methodology unveils the potential for using bulk bio-alcohols to selectively produce primary or secondary alcohols and hydrocarbons under mild conditions.

show abstract

“…Recently, some alternative fuels from renewable resources have been investigated, such as 1-butanol and higher primary alcohols . These biofuels are not only more favorable alternatives than ethanol but also less susceptible to phase separation due to being more hydrophobic . Previous reports of ethanol upgrading (SI, Figure S1) are based on the Guerbet reaction for carbon-chain growth, with selective production of 1-butanol and higher primary alcohols (Figure , upper pathway and SI, Figure S2).…”

mentioning

confidence: 99%

Tuning Ethanol Upgrading toward Primary or Secondary Alcohols by Homogeneous Catalysis

Padilla

Mello

et al. 2023

ACS Catal.

View full text Add to dashboard Cite

Ethanol is one of the most promising renewable resources for producing key industrial commodities. Herein, we present the direct conversion of ethanol to either primary or secondary alcohols, or to hydrocarbons, using ruthenium PNP pincer complexes [(RPNP)RuHXCO] (R = iPr, Ph, Cy, tBu; X = Cl, H–BH3) as catalysts. Using phenyl-substituted phosphines leads to the selective production of secondary alcohols over primary alcohols. Hence, employing [(PhPNP)RuH(Cl)CO] (Ru-1) as a catalyst in ethanol, containing 20 mol % of NaOtBu, at 115 °C leads to 89% selective production of the secondary alcohols. A yield of 12% of 2-butanol, and in total 22% of secondary alcohols, was achieved. In addition, minor amounts of 2-butenes/butane (≤5%) were observed. On the contrary, when using bulky phosphine substituents, such as t-butyl, the selectivity completely shifts toward primary alcohols. Thus, using [( tBuPNP)RuH(Cl)CO] (Ru-5) leads to >99% selectivity of 1-butanol (13% yield) over secondary alcohols at 115 °C. The catalytic system is highly competitive for producing 1-butanol with 22% yield obtained at 130 °C. Our methodology unveils the potential for developing methods to use bulk bio-alcohols to selectively produce primary or secondary alcohols and hydrocarbons under mild conditions.

show abstract

Transmission of butanol isomers in pervaporation based on series resistance model

Cited by 14 publications

References 38 publications

Transmission of sodium chloride in PDMS membrane during Pervaporation based on polymer relaxation

Transmission of sodium chloride in PDMS membrane during Pervaporation based on polymer relaxation

Low-temperature selective ethanol upgrading to primary or secondary alcohols by homogeneous catalysis

Tuning Ethanol Upgrading toward Primary or Secondary Alcohols by Homogeneous Catalysis

Contact Info

Product

Resources

About