Monitoring and control module for fluid catalytic cracking unit

A fluid injection system for a fluid catalytic cracking unit having a cracking standpipe into which oil, steam, and a catalyst are introduced at elevated pressure and temperature to crack the oil into constituent portions, the fluid injection system comprising:

• a manifold coupled to the cracking standpipe, the manifold having plurality of inner passages for distributing flows of oil and steam through the manifold, a plurality of inlets in fluid communication with the plurality of inner passages, and a plurality of outlets separated from the plurality of inlets and in fluid communication with the plurality of inner passages;
• a plurality of separate mixing chambers circumferentially disposed about the manifold, each mixing chamber configured to atomize oil supplied to the mixing chamber and mix the atomized oil with steam supplied to the mixing chamber;
• a plurality of multiflow control blocks circumferentially disposed about the manifold and coupled to the plurality of outlets, each multiflow control block configured for controlling the flows of oil and steam into a corresponding one of the plurality of mixing chambers;
• and
• a plurality of nozzles circumferentially disposed about the standpipe and extending through respective apertures into the standpipe, the plurality of nozzles in fluid communication with the plurality of mixing chambers for directing the oil and steam mixture into the standpipe in a controlled manner for reaction with the catalyst.

A nozzle for use in a fluid catalytic cracking unit for directing oil and steam at elevated pressure and temperature into a standpipe for forming hydrocarbon products, the nozzle comprising:

• an elongated member having first and second opposed ends and an inner slot extending along at least a portion of the length of the elongated member;
• a connecting arrangement disposed on the first end of the elongated member for mounting the nozzle in the fluid catalytic cracking unit;
• a first opening disposed on the second end of the elongated member, wherein the first opening forms a discharge end of the inner slot;
• and
• a second opening disposed on the elongated member for receiving and directing oil and steam into the inner slot, wherein the second opening is adapted to receive a shutoff valve for terminating the flow of oil and steam to the inner slot of the elongated member.

A fluid injection system for use with a standpipe of a fluid catalytic cracking unit, the fluid injection system comprising:

• a data collection and control module,
• an injector module having a plurality of nozzles positioned within the standpipe and a manifold positioned around the standpipe and configured to direct fluid inputs provided to the injector module toward the nozzles, the manifold formed to include a flow network therein configured to permit the passage of oil and steam through the manifold,
• a plurality of control blocks coupled to the manifold and configured to control a flow of fluid toward the nozzles through the flow network of the manifold, and
• wherein the data collection and control module is configured to permit monitoring of flows of oil and steam through the control blocks and for operating the control blocks such that fluid flow through the nozzles is controlled.