Sample

Scale

Peakheight (mm)

Peakwidth (mm)

Peak area (mm²)

Volume of gas (cm³)

Specific surface area (m²/g)

Purealumina

1:64

123

4.2

337,920

0.105

182.0

Spentcatalyst

1:32

159

4.8

201,506

0.101

108.5

Airregeneration

1:64

100

3.5

217,475

0.103

117.1

Regeneration with SC-CО₂ + Dimethylsulph-oxide

1:64

124

4.2

317,440

0.105

170.9