Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor

E.V. Rebrov; A. Berenguer-Murcia; H.E. Skelton; B.F.G. Johnson; J.C. Schouten

Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor

E.V. Rebrov, A. Berenguer-Murcia, H.E. Skelton, B.F.G. Johnson, J.C. Schouten

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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Abstract

The selective hydrogenation of phenylacetylene to styrene by hydrogen was studied in the 25-50 oC temperature range in a continuous flow microchannel of 250 µm i.d. with a Pd supported on mesoporous TiO2 catalyst. The inner wall of the microreactor was dip-coated with a prehydrolyzed titania precursor solution containing an EOxPOyEOx amphiphilic triblock copolymer (EO = ethylene oxide, PO = propylene oxide, x = 106, y = 70) and suspended palladium nanoparticles with an average diameter of 4 nm. Solvent was withdrawn from the channel at a rate of 1 cm/s yielding a 120 nm continuous titania layer with a cubic mesostructure after drying and calcination. The organic copolymer was removed by calcination at 300oC under a residual pressure of 15 mbar. The coating porosity was 0.4, resulting in overall coating mass of 1.32 mg with a 1 wt.% Pd content. The liquid flow was varied between 1 and 10 µL/min and the hydrogen flow between 250 and 550 µL/min (STP). This corresponds to superficial velocities of 0.034-0.34 cm/s and 8-18 cm/s for liquid and gas, respectively. The maximum selectivity to styrene of 95 % was observed at a phenylacetylene conversion of 88%. The reaction rate in terms of TOF was found to be up to 2 s-1.

Original language	English
Title of host publication	Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La
Place of Publication	New York, NY
Publisher	American Institute of Chemical Engineers (AIChE)
Pages	83n-1/14
ISBN (Print)	978-0-8169-1023-6
Publication status	Published - 2008
Event	10th International Conference on Microreaction Technology, IMRET 2008 - Topical Conference at the 2008 AIChE Spring National Meeting - New Orleans, LA, United States Duration: 1 Apr 2008 → 4 Apr 2008 Conference number: 410

Conference

Conference	10th International Conference on Microreaction Technology, IMRET 2008 - Topical Conference at the 2008 AIChE Spring National Meeting
Abbreviated title	IMRET 2008
Country/Territory	United States
City	New Orleans, LA
Period	1/04/08 → 4/04/08
Other	Topical conference at 2008 AIChE Spring Meeting & 4th Global Congress on Process Safety

Cite this

Rebrov, E. V., Berenguer-Murcia, A., Skelton, H. E., Johnson, B. F. G., & Schouten, J. C. (2008). Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor. In Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La (pp. 83n-1/14). American Institute of Chemical Engineers (AIChE).

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title = "Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor",

abstract = "The selective hydrogenation of phenylacetylene to styrene by hydrogen was studied in the 25-50 oC temperature range in a continuous flow microchannel of 250 µm i.d. with a Pd supported on mesoporous TiO2 catalyst. The inner wall of the microreactor was dip-coated with a prehydrolyzed titania precursor solution containing an EOxPOyEOx amphiphilic triblock copolymer (EO = ethylene oxide, PO = propylene oxide, x = 106, y = 70) and suspended palladium nanoparticles with an average diameter of 4 nm. Solvent was withdrawn from the channel at a rate of 1 cm/s yielding a 120 nm continuous titania layer with a cubic mesostructure after drying and calcination. The organic copolymer was removed by calcination at 300oC under a residual pressure of 15 mbar. The coating porosity was 0.4, resulting in overall coating mass of 1.32 mg with a 1 wt.% Pd content. The liquid flow was varied between 1 and 10 µL/min and the hydrogen flow between 250 and 550 µL/min (STP). This corresponds to superficial velocities of 0.034-0.34 cm/s and 8-18 cm/s for liquid and gas, respectively. The maximum selectivity to styrene of 95 % was observed at a phenylacetylene conversion of 88%. The reaction rate in terms of TOF was found to be up to 2 s-1.",

author = "E.V. Rebrov and A. Berenguer-Murcia and H.E. Skelton and B.F.G. Johnson and J.C. Schouten",

year = "2008",

language = "English",

isbn = "978-0-8169-1023-6",

pages = "83n--1/14",

booktitle = "Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La",

publisher = "American Institute of Chemical Engineers (AIChE)",

address = "United States",

note = "10th International Conference on Microreaction Technology, IMRET 2008 - Topical Conference at the 2008 AIChE Spring National Meeting, IMRET 2008 ; Conference date: 01-04-2008 Through 04-04-2008",

}

Rebrov, EV, Berenguer-Murcia, A, Skelton, HE, Johnson, BFG & Schouten, JC 2008, Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor. in Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La. American Institute of Chemical Engineers (AIChE), New York, NY, pp. 83n-1/14, 10th International Conference on Microreaction Technology, IMRET 2008 - Topical Conference at the 2008 AIChE Spring National Meeting, New Orleans, LA, United States, 1/04/08.

Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor. / Rebrov, E.V.; Berenguer-Murcia, A.; Skelton, H.E. et al.
Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La. New York, NY: American Institute of Chemical Engineers (AIChE), 2008. p. 83n-1/14.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor

AU - Rebrov, E.V.

AU - Berenguer-Murcia, A.

AU - Skelton, H.E.

AU - Johnson, B.F.G.

AU - Schouten, J.C.

N1 - Conference code: 410

PY - 2008

Y1 - 2008

N2 - The selective hydrogenation of phenylacetylene to styrene by hydrogen was studied in the 25-50 oC temperature range in a continuous flow microchannel of 250 µm i.d. with a Pd supported on mesoporous TiO2 catalyst. The inner wall of the microreactor was dip-coated with a prehydrolyzed titania precursor solution containing an EOxPOyEOx amphiphilic triblock copolymer (EO = ethylene oxide, PO = propylene oxide, x = 106, y = 70) and suspended palladium nanoparticles with an average diameter of 4 nm. Solvent was withdrawn from the channel at a rate of 1 cm/s yielding a 120 nm continuous titania layer with a cubic mesostructure after drying and calcination. The organic copolymer was removed by calcination at 300oC under a residual pressure of 15 mbar. The coating porosity was 0.4, resulting in overall coating mass of 1.32 mg with a 1 wt.% Pd content. The liquid flow was varied between 1 and 10 µL/min and the hydrogen flow between 250 and 550 µL/min (STP). This corresponds to superficial velocities of 0.034-0.34 cm/s and 8-18 cm/s for liquid and gas, respectively. The maximum selectivity to styrene of 95 % was observed at a phenylacetylene conversion of 88%. The reaction rate in terms of TOF was found to be up to 2 s-1.

AB - The selective hydrogenation of phenylacetylene to styrene by hydrogen was studied in the 25-50 oC temperature range in a continuous flow microchannel of 250 µm i.d. with a Pd supported on mesoporous TiO2 catalyst. The inner wall of the microreactor was dip-coated with a prehydrolyzed titania precursor solution containing an EOxPOyEOx amphiphilic triblock copolymer (EO = ethylene oxide, PO = propylene oxide, x = 106, y = 70) and suspended palladium nanoparticles with an average diameter of 4 nm. Solvent was withdrawn from the channel at a rate of 1 cm/s yielding a 120 nm continuous titania layer with a cubic mesostructure after drying and calcination. The organic copolymer was removed by calcination at 300oC under a residual pressure of 15 mbar. The coating porosity was 0.4, resulting in overall coating mass of 1.32 mg with a 1 wt.% Pd content. The liquid flow was varied between 1 and 10 µL/min and the hydrogen flow between 250 and 550 µL/min (STP). This corresponds to superficial velocities of 0.034-0.34 cm/s and 8-18 cm/s for liquid and gas, respectively. The maximum selectivity to styrene of 95 % was observed at a phenylacetylene conversion of 88%. The reaction rate in terms of TOF was found to be up to 2 s-1.

M3 - Conference contribution

SN - 978-0-8169-1023-6

SP - 83n-1/14

BT - Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La

PB - American Institute of Chemical Engineers (AIChE)

CY - New York, NY

T2 - 10th International Conference on Microreaction Technology, IMRET 2008 - Topical Conference at the 2008 AIChE Spring National Meeting

Y2 - 1 April 2008 through 4 April 2008

ER -

Rebrov EV, Berenguer-Murcia A, Skelton HE, Johnson BFG, Schouten JC. Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor. In Proceedings of the 10th International Conference on Microreaction Technology (IMRET-10), April, 06-10 2008, New Orleans, La. New York, NY: American Institute of Chemical Engineers (AIChE). 2008. p. 83n-1/14

Selective hydrogenation of phenylacetylene to styrene on a Pd/TiO2 coating in a microreactor

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