Preparation and properties of hydrothermally stable gamma-alumina membranes

Arian Nijmeijer, H. Kruidhof, Rune Bredesen, H. Verweij

Research output: Contribution to journalArticleAcademicpeer-review

43 Citations (Scopus)

Abstract

Supported mesoporous γ-Al2O3 membranes deteriorate and blister in steam-containing environments at high temperatures. This deterioration led us to the development of a new type of supported γ-Al2O3 membrane with significantly improved stability under hostile conditions. Two measures were taken to achieve this result. First, the γ-Al2O3 itself was stabilized by an addition of 6 mol% La2O3 to suppress pore growth of the mesoporous structure. Second, the adherence of the γ-Al2O3 membrane to the α-Al2O3 support was significantly improved by application of phosphate bonding between the membrane layer and the support, using an Al(H2PO4)3 precursor solution. Membranes applied without phosphate bonding were separated from the α-Al2O3 support during high-temperature steam treatment, resulting in complete loss of separative properties. The newly developed membranes could be operated for 100 h at 600°C in H2O/CH4 = 3/1 (by volume) at 2.5 MPa total pressure with no delamination or cracking in the membrane–support interface and with no significant pore growth in the γ-Al2O3 membrane.
Original languageUndefined
Pages (from-to)136140-
Number of pages5
JournalJournal of the American Ceramic Society
Volume84
Issue number1
DOIs
Publication statusPublished - 2001

Keywords

  • METIS-203000
  • IR-58463

Cite this

Nijmeijer, Arian ; Kruidhof, H. ; Bredesen, Rune ; Verweij, H. / Preparation and properties of hydrothermally stable gamma-alumina membranes. In: Journal of the American Ceramic Society. 2001 ; Vol. 84, No. 1. pp. 136140-.
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abstract = "Supported mesoporous γ-Al2O3 membranes deteriorate and blister in steam-containing environments at high temperatures. This deterioration led us to the development of a new type of supported γ-Al2O3 membrane with significantly improved stability under hostile conditions. Two measures were taken to achieve this result. First, the γ-Al2O3 itself was stabilized by an addition of 6 mol{\%} La2O3 to suppress pore growth of the mesoporous structure. Second, the adherence of the γ-Al2O3 membrane to the α-Al2O3 support was significantly improved by application of phosphate bonding between the membrane layer and the support, using an Al(H2PO4)3 precursor solution. Membranes applied without phosphate bonding were separated from the α-Al2O3 support during high-temperature steam treatment, resulting in complete loss of separative properties. The newly developed membranes could be operated for 100 h at 600°C in H2O/CH4 = 3/1 (by volume) at 2.5 MPa total pressure with no delamination or cracking in the membrane–support interface and with no significant pore growth in the γ-Al2O3 membrane.",
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Preparation and properties of hydrothermally stable gamma-alumina membranes. / Nijmeijer, Arian; Kruidhof, H.; Bredesen, Rune; Verweij, H.

In: Journal of the American Ceramic Society, Vol. 84, No. 1, 2001, p. 136140-.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Preparation and properties of hydrothermally stable gamma-alumina membranes

AU - Nijmeijer, Arian

AU - Kruidhof, H.

AU - Bredesen, Rune

AU - Verweij, H.

PY - 2001

Y1 - 2001

N2 - Supported mesoporous γ-Al2O3 membranes deteriorate and blister in steam-containing environments at high temperatures. This deterioration led us to the development of a new type of supported γ-Al2O3 membrane with significantly improved stability under hostile conditions. Two measures were taken to achieve this result. First, the γ-Al2O3 itself was stabilized by an addition of 6 mol% La2O3 to suppress pore growth of the mesoporous structure. Second, the adherence of the γ-Al2O3 membrane to the α-Al2O3 support was significantly improved by application of phosphate bonding between the membrane layer and the support, using an Al(H2PO4)3 precursor solution. Membranes applied without phosphate bonding were separated from the α-Al2O3 support during high-temperature steam treatment, resulting in complete loss of separative properties. The newly developed membranes could be operated for 100 h at 600°C in H2O/CH4 = 3/1 (by volume) at 2.5 MPa total pressure with no delamination or cracking in the membrane–support interface and with no significant pore growth in the γ-Al2O3 membrane.

AB - Supported mesoporous γ-Al2O3 membranes deteriorate and blister in steam-containing environments at high temperatures. This deterioration led us to the development of a new type of supported γ-Al2O3 membrane with significantly improved stability under hostile conditions. Two measures were taken to achieve this result. First, the γ-Al2O3 itself was stabilized by an addition of 6 mol% La2O3 to suppress pore growth of the mesoporous structure. Second, the adherence of the γ-Al2O3 membrane to the α-Al2O3 support was significantly improved by application of phosphate bonding between the membrane layer and the support, using an Al(H2PO4)3 precursor solution. Membranes applied without phosphate bonding were separated from the α-Al2O3 support during high-temperature steam treatment, resulting in complete loss of separative properties. The newly developed membranes could be operated for 100 h at 600°C in H2O/CH4 = 3/1 (by volume) at 2.5 MPa total pressure with no delamination or cracking in the membrane–support interface and with no significant pore growth in the γ-Al2O3 membrane.

KW - METIS-203000

KW - IR-58463

U2 - 10.1111/j.1151-2916.2001.tb00620.x

DO - 10.1111/j.1151-2916.2001.tb00620.x

M3 - Article

VL - 84

SP - 136140-

JO - Journal of the American Ceramic Society

JF - Journal of the American Ceramic Society

SN - 0002-7820

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ER -