What is the type of riser?
Thread Content
Dear colleagues working in catalysis, how many sections does the riser in your unit have? What type? The more, the better
Changqing Petrochemical: Two-stage lifting, dry gas lifting
Single-stage lifting, MIP process; the lifting gas is also dry gas
The riser of our catalytic unit is a single-stage riser, and the rising gas is steam
Single-stage riser, two-stage reaction, MIP process; the pre-riser medium is normally dry gas.
FCC external folding single-stage riser, pre-raising using both dry gas and steam~~~~~~~~~~~~~
Single-stage lifting, MIP process; the lifting gas is dry gas, and steam is used when it is insufficient.
Single-stage lift column, with lifting gas being steam and dry gas, and terminator being light gasoline/
A single-stage lift tube, divided into zone 1 and zone 2, with dry gas or steam as the pre-lift medium.
1-stage lift, pre-lifting steam
Our unit belongs to the FDFCC-III process, which uses a mixture of lift medium steam and dry gas.