Fluid Catalytic Cracking Catalyst Evaluation: The Short Contact Time Resid Test

Fluid catalytic cracking: recent developments on the grand old lady of zeolite catalysis

“… 39 , 40 Kayser 41 developed the so-called ACE (Advanced Cracking Evaluation) units, a catalytic fixed fluid bed system, in which a small catalyst sample (typically about 1 g) is fluidized in a gas stream, and a brief pulse of atomized VGO is passed through the fluidized bed at 538 °C (1000 °F). Another solution capable of handling the heavier feedstock is the Short Contact Time Resid Test, described by Imhof et al 42 MAT and its refinements ( e.g. SCT-MAT and AUTOMAT 43 ) and ACE protocols can show ranking differences amongst each other, but also with pilot plant results.…”

Crude oil to chemicals: light olefins from crude oil

“…A number of modifications of the original, ASTM-3907 protocol aimed at reducing these drawbacks, and usually features shorter reaction time, higher temperature, dilution of catalyst and feed. 76,77 Catalytic fixed fluid bed (ACE) has emerged in the last years as the competitor of MAT test as standard catalytic cracking test. The main difference is that the catalyst bed is fluidized, which eliminates the formation of temperature and coke profiles along the bed.…”

A novel fluidized and induction heated microreactor for catalyst testing

“…The fluidized bed microreactor technologies available in the market improve mixing. For example, although the SCT‐RT is a microreactor which operates batch‐wise, it is designed specifically to test catalysts of processes which require a very short residence time like the FCC process . The Berty‐style recycle reactors suffer from an axial coke profile due to high recycle rates .…”