Development of practically available up-scaled high-silica CHA-type zeolite membranes for industrial purpose in dehydration of N-methyl pyrrolidone solution

Sato, K.; Sugimoto, Kazunori; Shimotsuma, Naoto; Kikuchi, Takanori; Kyotani, Tomohiro; Kurata, Tsunehiko

doi:10.1016/j.memsci.2012.03.032

Cited by 66 publications

(50 citation statements)

References 50 publications

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“…CHA, LTA, MFI, FAU, DDR), zeolitic imidazolate frameworks (e.g. ZIF-8) and mixed matrix membranes [49][50][51]. There is considerable evidence in the literature to indicate that hydrogen bonding, and consequent cluster formation manifests in LTA-4A [52,53], MFI [54][55][56][57][58][59][60][61][62][63][64], ZIF-8 [65], Nafion [66], PDMS [67], NaX [68][69][70][71][72], and Chitosan [73].…”

Section: Systems Exhibiting Molecular Clusteringmentioning

confidence: 99%

Investigating the influence of diffusional coupling on mixture permeation across porous membranes

Krishna¹,

Baten²

2013

Journal of Membrane Science

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Section: Systems Exhibiting Molecular Clusteringmentioning

confidence: 99%

Investigating the influence of diffusional coupling on mixture permeation across porous membranes

Krishna¹,

Baten²

2013

Journal of Membrane Science

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“…The equilibrium data for the NMP-water system show that distillation is a feasible separation option at atmospheric pressure. However, other separation techniques were investigated because distillation can be energy intensive, resulting in high operating costs and environmental impact (Ghosh et al 2006;Sato et al 2012;Constable et al 2007a, b;Jessop 2011). This is a concern for the NMP-water system, because NMP has a high normal boiling point, 202°C, and the solvent waste stream has a high water composition.…”

Section: Nmp Recoverymentioning

confidence: 99%

“…Pervaporation was investigated as a lower energy alternative to distillation. However, pervaporation to dehydrate the NMP is not feasible for this case because water is the major component of the hazardous solvent waste (Chapman et al 2008;Sunitha et al 2013;Sato et al 2012;Tsai et al 2012;van Veen et al 2011). Organic selective pervaporation, to remove NMP from the solvent waste stream, could not be modeled for this case because limited literature is available for similar aqueous NMP streams (Ghosh et al 2006).…”

Section: Nmp Recoverymentioning

confidence: 99%

“…However, there are no published NMP recovery studies for the pharmaceutical or fine chemicals sectors. There are published studies on the separation of NMP and water, but these are preliminary studies and do not include an analysis of the implementation of this equipment for NMP recovery (Sunitha et al 2013;Sato et al 2012;Tsai et al 2012;van Veen et al 2011;Ghosh et al 2006;Shao et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Life cycle assessment of N-methyl-2-pyrrolidone reduction strategies in the manufacture of resin precursors

Pastore

Savelski

Slater

et al. 2016

Clean Techn Environ Policy

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A case study has been conducted on the reduction of N-methyl-2-pyrrolidone (NMP) solvent waste in the manufacture of polyimide and polybenzoxazole precursors. The evaluation includes the environmental and economic life cycle assessment of solvent recovery and solvent substitution strategies. A two-step distillation process proved effective in recovering 95 % of the NMP at a purity of 99.97 % from an aqueous waste stream comprised 17 % NMP, 0.5 % hydroxyethyl methacrylate, 0.5 % trifluoroacetic acid, and 0.5 % hydrochloric acid. Yearly operating costs were reduced by 83 %, with the greatest impact on the reduction in virgin NMP purchase and hazardous waste disposal cost. Even if a capital acquisition was needed, the recovery option would still result in a net present value at 10 years of 3.12 MM $US. The environmental life cycle assessment (LCA) showed that a 44 % reduction of total emissions is possible with the solvent recovery process, impacting the virgin NMP and hazardous waste disposal life cycle emissions the most. The efficiency in the reduction in life cycle emissions is limited by the thermodynamics of the system, in particular the large composition of water in the waste stream which requires significant energy to distill, thus generating significant life cycle emissions. Solvent substitutes dimethyl sulfoxide and sulfolane reduce life cycle emissions by 44 and 47 %, respectively, when they replace NMP in the process, even without a recovery operation, due to their greener manufacturing profile. Although, when the recovery systems for the solvent substitutes are incorporated into the design, no further reductions in the environmental impact are seen. This demonstrates the need for a complete analysis of all the aspects of a greener design (including the recovery step), since the thermodynamic characteristics of the solvents are important when performing an LCA. Water reuse was also considered for the overall process, but not recommended due to the cost of recovering it from the waste stream to ultrapure water standards.

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“…Polyurethaneurea (PUU) [16] and PAN hollow fiber [17] membranes were synthesized to separate NMP and water. Kiminori Sato et al [18] developed a high-silica CHA-type tubular zeolite membrane for dehydrating NMP up to 50% feed water concentration.…”

Section: Introductionmentioning

confidence: 99%

Separation of NMP/water mixtures by nanocomposite PEBA membrane: Part I. Membrane synthesis, characterization and pervaporation performance

et al. 2013

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Development of practically available up-scaled high-silica CHA-type zeolite membranes for industrial purpose in dehydration of N-methyl pyrrolidone solution

Cited by 66 publications

References 50 publications

Investigating the influence of diffusional coupling on mixture permeation across porous membranes

Investigating the influence of diffusional coupling on mixture permeation across porous membranes

Life cycle assessment of N-methyl-2-pyrrolidone reduction strategies in the manufacture of resin precursors

Separation of NMP/water mixtures by nanocomposite PEBA membrane: Part I. Membrane synthesis, characterization and pervaporation performance

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