Buscar
Mostrando ítems 31-40 de 472
Lime/pozzolan/geopolymer systems: Performance in pastes and mortars
(2021-03-22)
Use of lime as construction material is limited mainly by low initial strength. These properties can be improved by adding pozzolanic materials, but the evolution of the reaction usually needs older ages than 7 days. ...
New geopolymeric binder based on fluid catalytic cracking catalyst residue (FCC)
(Elsevier B.V., 2012-08-01)
This paper provides information about the synthesis and mechanical properties of geopolymers based on fluid catalytic cracking catalyst residue (FCC). FCC was alkali activated with solutions containing different SiO2/Na2O ...
New geopolymeric binder based on fluid catalytic cracking catalyst residue (FCC)
(Elsevier B.V., 2012-08-01)
This paper provides information about the synthesis and mechanical properties of geopolymers based on fluid catalytic cracking catalyst residue (FCC). FCC was alkali activated with solutions containing different SiO2/Na2O ...
Identification and predictive control of a FCC unit using a MIMO neural model
(Elsevier Science SaLausanneSuíça, 2005)
Synthesis of FAU(Y)- and MFI(ZSM5)-nanosized crystallites for catalytic cracking of 1,3,5-triisopropylbenzene
(Elsevier Science, 2011-05)
Nanocrystals of FAU(Y) and MFI(ZSM5) zeolites were synthesized from clear solutions at 80-95 °C under autogen and atmospheric pressures, respectively. The X-ray diffraction (XRD) patterns confirm the structural features ...
Accessibility in alumina matrices of FCC catalysts
(Elsevier Science, 2006-11)
The accessibility in aluminas considered to be representative of matrices used in FCC resid catalysts, with mean pore sizes between 64 and 201 Å, was characterized through a kinetic approach by means of the conversion of ...
Coke from SARA fractions in VGO. Impact on Y zeolite acidity and physical properties
(Elsevier, 2018-08)
The impact of the composition of the various hydrocarbon fractions in a conventional VGO (saturated SF, aromatic AF and resin RF) and the whole VGO on the coke formed in their catalytic cracking was evaluated over two Y ...