TY - JOUR

T1 - Dealuminated Y Zeolite for Water-Driven Adsorption Heat Pumps

T2 - Hydrothermal Stability

AU - Buhl, Josef Christian

AU - Lutz, Wolfgang

AU - Herzog, Thomas

N1 - Funding Information: This work was supported by the German Federal Ministry of Education and Research, grant number FKZ 01 LY 11 60 9C.

PY - 2021/7/22

Y1 - 2021/7/22

N2 - Silica gel or zeolites AlPO-5 and SAPO-34 are recommended as adsorbents in water-driven heat pumps because of their selective water uptake. Secondary energy, like solar energy, can be used for regeneration of loaded adsorbers. In case of the availability of only low energy levels, the use of dealuminated Y zeolite (DAY) is the better choice because of the infinitely variation of its hydrophilic properties by tailoring of the framework Si/Al ratio. Actual data on the hydrothermal stability of DAY are lacking. Thus, we report on the long-term behavior of DAY zeolites with different Si/Al ratios.

AB - Silica gel or zeolites AlPO-5 and SAPO-34 are recommended as adsorbents in water-driven heat pumps because of their selective water uptake. Secondary energy, like solar energy, can be used for regeneration of loaded adsorbers. In case of the availability of only low energy levels, the use of dealuminated Y zeolite (DAY) is the better choice because of the infinitely variation of its hydrophilic properties by tailoring of the framework Si/Al ratio. Actual data on the hydrothermal stability of DAY are lacking. Thus, we report on the long-term behavior of DAY zeolites with different Si/Al ratios.

KW - Adsorption

KW - Dealumination

KW - Heat pump

KW - Hydrothermal stability

KW - Zeolite Y

UR - http://www.scopus.com/inward/record.url?scp=85105062164&partnerID=8YFLogxK

U2 - 10.1002/cite.202000239

DO - 10.1002/cite.202000239

M3 - Article

AN - SCOPUS:85105062164

VL - 93

SP - 1273

EP - 1277

JO - Chemie-Ingenieur-Technik

JF - Chemie-Ingenieur-Technik

SN - 0009-286X

IS - 8

ER -