Table 1 Chemical compositions, BET surface areas and pore volumes of the calcined zeolites

From: Syngas to light olefins conversion with high olefin/paraffin ratio using ZnCrOx/AlPO-18 bifunctional catalysts

Sample

Si/Al mole ratioa

BET surface areab (m2 g−1)

Micropore areab (m2 g−1)

Total pore volumeb (cm3 g−1)

Micropore volumeb (cm3 g−1)

AlPO-18

0

592

501

0.64

0.23

low-Si AlPO-18

0.013

467

384

0.60

0.18

SAPO-34

0.13

493

490

0.27

0.23

  1. aDetermined by inductively coupled plasma atomic emission spectroscopy
  2. bDetermined by N2-adsorption
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