Method of burning sulfur-containing fuels in a fluidized bed boiler

Title: Method of burning sulfur-containing fuels in a fluidized bed boiler

Full Record
Other Related Research

Abstract

A method of burning a sulfur-containing fuel in a fluidized bed of sulfur oxide sorbent wherein the overall utilization of sulfur oxide sorbent is increased by comminuting the bed drain solids to a smaller average particle size, preferably on the order of 50 microns, and reinjecting the comminuted bed drain solids into the bed. In comminuting the bed drain solids, particles of spent sulfur sorbent contained therein are fractured thereby exposing unreacted sorbent surface. Upon reinjecting the comminuted bed drain solids into the bed, the newly-exposed unreacted sorbent surface is available for sulfur oxide sorption, thereby increasing overall sorbent utilization.

Inventors:

Jones, Brian C ^[1]

Windsor, CT

Issue Date:: 1982-01-01

Research Org.:: Combustion Engineering, Inc., Windsor, CT (United States)

OSTI Identifier:: 864204

Patent Number(s):: 4329324

Assignee:: Combustion Engineering, Inc. (Windsor, CT)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR

Show more

B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
B01J8/32 - with introduction into the fluidised bed of more than one kind of moving particles

F - MECHANICAL ENGINEERING F23 - COMBUSTION APPARATUS F23C - METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN {A CARRIER GAS OR} AIR
F23C10/26 - combined with devices for partial reintroduction of material into the bed, e.g. after separation of agglomerated parts
F23C10/10 - the separation apparatus being located outside the combustion chamber

Show less

DOE Contract Number:: EX-76-C-01-2473

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; burning; sulfur-containing; fuels; fluidized; bed; boiler; fuel; sulfur; oxide; sorbent; overall; utilization; increased; comminuting; drain; solids; average; particle; size; preferably; 50; microns; reinjecting; comminuted; particles; spent; contained; therein; fractured; exposing; unreacted; surface; newly-exposed; available; sorption; increasing; sulfur sorbent; bed drain; oxide sorbent; containing fuel; sulfur oxide; fluidized bed; particle size; contained therein; bed boiler; average particle; sorbent utilization; sulfur-containing fuel; /423/110/

Citation Formats


                    Jones, Brian C. Method of burning sulfur-containing fuels in a fluidized bed boiler.  United States: N. p., 1982. 
        Web.

Copy to clipboard


                    Jones, Brian C. Method of burning sulfur-containing fuels in a fluidized bed boiler.  United States.

Copy to clipboard


                    Jones, Brian C. Fri .  
        "Method of burning sulfur-containing fuels in a fluidized bed boiler".  United States.  https://www.osti.gov/servlets/purl/864204.

Copy to clipboard


                    
@article{osti_864204,

  title        = {Method of burning sulfur-containing fuels in a fluidized bed boiler},

  author       = {Jones, Brian C},

  abstractNote = {A method of burning a sulfur-containing fuel in a fluidized bed of sulfur oxide sorbent wherein the overall utilization of sulfur oxide sorbent is increased by comminuting the bed drain solids to a smaller average particle size, preferably on the order of 50 microns, and reinjecting the comminuted bed drain solids into the bed. In comminuting the bed drain solids, particles of spent sulfur sorbent contained therein are fractured thereby exposing unreacted sorbent surface. Upon reinjecting the comminuted bed drain solids into the bed, the newly-exposed unreacted sorbent surface is available for sulfur oxide sorption, thereby increasing overall sorbent utilization.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1982},

  month        = {1}

}

Copy to clipboard

Patent:

View Patent

Save / Share:

Export Metadata

Save to My Library

Similar Records in DOE Patents and OSTI.GOV collections:

Model-free adaptive control of supercritical circulating fluidized-bed boilers

Patent Cheng, George Shu-Xing; Mulkey, Steven L

A novel 3-Input-3-Output (3.times.3) Fuel-Air Ratio Model-Free Adaptive (MFA) controller is introduced, which can effectively control key process variables including Bed Temperature, Excess O2, and Furnace Negative Pressure of combustion processes of advanced boilers. A novel 7-input-7-output (7.times.7) MFA control system is also described for controlling a combined 3-Input-3-Output (3.times.3) process of Boiler-Turbine-Generator (BTG) units and a 5.times.5 CFB combustion process of advanced boilers. Those boilers include Circulating Fluidized-Bed (CFB) Boilers and Once-Through Supercritical Circulating Fluidized-Bed (OTSC CFB) Boilers.
Full Text Available
Fluidized bed boiler feed system

Patent Jones, Brian C [Windsor, CT]

A fluidized bed boiler feed system for the combustion of pulverized coal. Coal is first screened to separate large from small particles. Large particles of coal are fed directly to the top of the fluidized bed while fine particles are first mixed with recycled char, preheated, and then fed into the interior of the fluidized bed to promote char burnout and to avoid elutriation and carryover.
Full Text Available
Fluidized bed boiler having a segmented grate

Patent Waryasz, Richard E [Longmeadow, MA]

A fluidized bed furnace (10) is provided having a perforate grate (9) within a housing which supports a bed of particulate material including some combustibles. The grate is divided into a plurality of segments (E2-E6, SH1-SH5, RH1-RH5), with the airflow to each segment being independently controlled. Some of the segments have evaporating surface imbedded in the particulate material above them, while other segments are below superheater surface or reheater surface. Some of the segments (E1, E7) have no surface above them, and there are ignitor combustors (32, 34) directed to fire into the segments, for fast startup of the furnacemore »« less
Full Text Available
Process for producing low-sulfur boiler fuel by hydrotreatment of solvent deashed SRC

Patent Roberts, George W [Emmaus, PA]; Tao, John C [Perkiomenville, PA]

In this invention, a process is disclosed characterized by heating a slurry of coal in the presence of a process-derived recycle solvent and passing same to a dissolver zone, separating the resultant gases and liquid/solid products therefrom, vacuum distilling the liquid/solids products, separating the portions of the liquid/solids vacuum distillation effluent into a solid ash, unconverted coal particles and SRC material having a boiling point above 850.degree. F. and subjecting same to a critical solvent deashing step to provide an ash-free SRC product. The lighter liquid products from the vacuum distillation possess a boiling point below 850.degree. F. and aremore »« less
Full Text Available
Solid fuel feed system for a fluidized bed

Patent Jones, Brian C [Windsor, CT]

A fluidized bed for the combustion of coal, with limestone, is replenished with crushed coal from a system discharging the coal laterally from a station below the surface level of the bed. A compartment, or feed box, is mounted at one side of the bed and its interior separated from the bed by a weir plate beneath which the coal flows laterally into the bed while bed material is received into the compartment above the plate to maintain a predetermined minimum level of material in the compartment.
Full Text Available

Similar Records