Table 1: Characteristics of the internal loop ALR.

Characteristic Scale Units Reactor diameter 0.3 m Riser diameter 0.23 m Riser height 2.3 m Reactor height 2.75 m Gas separator diameter 0.5 m Bottom clearance 0.2 m Total reactor volume 200 L Riser volume 95 L Downcomer to riser area ratio 1.2 — Separator to riser area ratio 4.7 — Reactor height to diameter ratio 9 —