Selective placement of fluid injection in a riser reactor equipped with a horizontal tee joint connection to substantially reduce back pressure in the riser reactor

Patent · Tue Sep 08 04:00:00 EDT 1987

OSTI ID:5826839

Parker, W A; Hardesty, D E; Stanley, J E

This patent describes an apparatus for passing combined phases of an admixture of a vapor phase and fine solid particles upward through a first passageway and forcing the combined phases to a second passageway positioned at a substantially right angle with respect to the first passageway. It consists of: (a) a first passageway comprising a vertical passageway having a diameter and being situated in a substantially vertical upright position. The first passageway has side walls, an imperforate top, and a bottom portion. The bottom portion of the first passageway includes an inlet means to permit entry into the first passageway of a combined fine solid particle-vapor phase stream; (b) a second passageway comprising a relatively horizontal elongated passageway situated substantially perpendicular to the first passageway and interconnecting and communicating openly at one end with the side walls at an upper portion of the passageway to define a tee joint interconnection. A first portion of the first passageway is situated below the second passageway and a second portion of the first passageway is situated above the second passageway. The second portion terminates at the imperforate top, and the second passageway communicates with, at the other end, a solid particle-vaporous phase separation means; and (c) a fluid inlet injection means selectively located juxtaposed or attached to a second of the side walls to inject fluid in a direction substantially perpendicular to the vertical axis of the first passageway and to project the fluid into the second passageway.

• Assignee: Shell Oil Co., Houston, TX
• Patent Number(s): US 4692235
• OSTI ID: 5826839
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
APERTURES
CHEMICAL REACTORS
CONTROL
DISPERSIONS
EVAPORATION
FLUID FLOW
FLUID MECHANICS
HYDRODYNAMICS
JOINTS
MECHANICS
MIXTURES
OPENINGS
PARTICLES
PARTICULATES
PHASE TRANSFORMATIONS
PRESSURE CONTROL
SOLIDS FLOW
SUSPENSIONS