US1167471A - Process of modifying the ash resulting from the combustion of powdered fuel. - Google Patents
Process of modifying the ash resulting from the combustion of powdered fuel. Download PDFInfo
- Publication number
- US1167471A US1167471A US85710914A US1914857109A US1167471A US 1167471 A US1167471 A US 1167471A US 85710914 A US85710914 A US 85710914A US 1914857109 A US1914857109 A US 1914857109A US 1167471 A US1167471 A US 1167471A
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- Prior art keywords
- ash
- modifying
- combustion
- powdered
- furnace
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L9/00—Treating solid fuels to improve their combustion
- C10L9/10—Treating solid fuels to improve their combustion by using additives
Definitions
- PENNSYLVANIA A CORPORATION OF PENN- PROCESS OF MODIFYING- THE ASH RESULTING FROM THE COMBUSTION OF POWDERED To all whom it may concern:
- My invention relates to the process of burning powdered coal in a furnace containing billets or other articles of metal to be heat-treated or to be heated preparatory to forging.
- the known advantage of this process is that it supplies heat at a relatively low. price.
- the process of course involves the deposition of the ash upon the walls of the furnace and the articles undergoing treatment, which has certain advantages so far as concerns the said articles in that it afiords a coating that acts to reduce oxidation.
- the process however, has certain deleterious effects, both upon the furnace walls and the articles undergoing treatment.
- My invention consists in adding to the coal an inorganic neutral substance, preferably clay, which should previously be dried and powdered and which may also be burnt.
- the kind of clay employed must be among those classed as refractory, and preferably should have a melting point of not less than 2400 F., although a clay less-refractory in FUEL 1 167 413 11. I Specification of Letters Patent. No Drawing.
- the percentage of clay to the weight of ash-forming constituents of the coal should not be less than ten per cent. and I prefer to use from twenty to forty per cent.
- the elfect of this addition to the coal of a powdered neutral substance is to raise the melting point of the ash and -form a satisfactory protective coating for the billets or other articles undergoing treatment, thereby minimizing oxidation.
- the scale thus formed comparatively thin, but its toughness and brittleness is so modified that it possesses weak adherent properties and can be readily removed before forging.
- the substantial dilution of the basic constituents of the ash serves also to much diminish the physical reaction of the ash upon the furnace walls.
- the process is alsg applicable to the use of powdered coal for heating metals in a fluid state, as 'in an open hearth furnace.
Description
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WILLIAM P. BARBA, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO THE MIDVALE STEEL COMPANY, OF PHILADELPHIA, SYLVANIA.
PENNSYLVANIA, A CORPORATION OF PENN- PROCESS OF MODIFYING- THE ASH RESULTING FROM THE COMBUSTION OF POWDERED To all whom it may concern:
Be it known that I, WILLIAM P. BARBA, a citizen of the United States, residing at Philadelphia,-county of Philadelphia, and State of Pennsylvania, have invented a new and useful lni provement in Processes of Modifying the sh Resulting from the Combustion of Powdered Fuel, of which the following is a full, clear, and exact description.
My invention relates to the process of burning powdered coal in a furnace containing billets or other articles of metal to be heat-treated or to be heated preparatory to forging. The known advantage of this process is that it supplies heat at a relatively low. price. The process of course involves the deposition of the ash upon the walls of the furnace and the articles undergoing treatment, which has certain advantages so far as concerns the said articles in that it afiords a coating that acts to reduce oxidation. The process, however, has certain deleterious effects, both upon the furnace walls and the articles undergoing treatment. \Vhile the coating of the articles with ash tends to reduce oxidation, the ash usually fails to fuse with the scale to such an extent as to form a perfectly satisfactory protective coating, which scale is not only therefore so great in depth as to involve a considerable loss of metal but often adheres so closely to the articles as to render its removal, necessary preparatory to forging, somewhat difficult. The process also has deleterious effects upon the furnace walls, arising from the deposit of fused ash, which reacts chemically and physically by lowering the melting point of the materials of whichthe furnace is composed and causing them to flux away and break down; and further, the continuous deposit .and adhesion of the ash builds up the walls to an extent involvinga serious reduction in the capacity and efiiciency of the furnace.-
My invention consists in adding to the coal an inorganic neutral substance, preferably clay, which should previously be dried and powdered and which may also be burnt. The kind of clay employed must be among those classed as refractory, and preferably should have a melting point of not less than 2400 F., although a clay less-refractory in FUEL 1 167 413 11. I Specification of Letters Patent. No Drawing.
Application filed August 17, 1914; Serial No. 857,109.
degree would be practicable under some conditions. The percentage of clay to the weight of ash-forming constituents of the coal should not be less than ten per cent. and I prefer to use from twenty to forty per cent. The elfect of this addition to the coal of a powdered neutral substance is to raise the melting point of the ash and -form a satisfactory protective coating for the billets or other articles undergoing treatment, thereby minimizing oxidation. Not only is the scale thus formed comparatively thin, but its toughness and brittleness is so modified that it possesses weak adherent properties and can be readily removed before forging. The substantial dilution of the basic constituents of the ash serves also to much diminish the physical reaction of the ash upon the furnace walls. The process is alsg applicable to the use of powdered coal for heating metals in a fluid state, as 'in an open hearth furnace.
Having now fully described my invention, what I claim and desire to protect by Letters Patent is:
l. The process of modifying the ash pro duced in burning powdered coal in a furnace which consists in adding to the powdered coal powdered refractory clay.
2. The process of modifying the ash pro duced in burning powdered coal in a furnace which consists in adding to the powdered coal powdered refractory clay in excess of ten per cent. of the ash forming constituents of the coal.
3. The process of modifying the ash produced in burning powdered coal in a furnace containing metal articles to be heated, which consists in adding to the powdered coal an inorganic neutral substance in quantity sufficient to raise the melting point of the ash to the extent required to form a modified ash which will act as a protective coating for said articles and thereby minimize the production of scale.
In testimony of which invention, I have hereunto set my hand, at Philadelphia, on this 27th day of July, 1914.
WILLIAM P. BARBA.
Witnesses:
JOSEPH ENTWISLE, ARTHUR KRONEMANN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85710914A US1167471A (en) | 1914-08-17 | 1914-08-17 | Process of modifying the ash resulting from the combustion of powdered fuel. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85710914A US1167471A (en) | 1914-08-17 | 1914-08-17 | Process of modifying the ash resulting from the combustion of powdered fuel. |
Publications (1)
Publication Number | Publication Date |
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US1167471A true US1167471A (en) | 1916-01-11 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US85710914A Expired - Lifetime US1167471A (en) | 1914-08-17 | 1914-08-17 | Process of modifying the ash resulting from the combustion of powdered fuel. |
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Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3628925A (en) * | 1970-02-16 | 1971-12-21 | Trimex Corp | Combustion adjuvant |
US3630696A (en) * | 1969-10-27 | 1971-12-28 | Trimex Corp | Combustion adjuvant |
US4232615A (en) * | 1979-06-11 | 1980-11-11 | Aluminum Company Of America | Coal burning method to reduce particulate and sulfur emissions |
US4308808A (en) * | 1979-06-11 | 1982-01-05 | Aluminum Company Of America | Coal burning method to reduce particulate and sulfur emissions |
US4542704A (en) * | 1984-12-14 | 1985-09-24 | Aluminum Company Of America | Three-stage process for burning fuel containing sulfur to reduce emission of particulates and sulfur-containing gases |
US4582005A (en) * | 1984-12-13 | 1986-04-15 | Aluminum Company Of America | Fuel burning method to reduce sulfur emissions and form non-toxic sulfur compounds |
US20060210463A1 (en) * | 2005-03-17 | 2006-09-21 | Comrie Douglas C | Reducing mercury emissions from the burning of coal |
US20070168213A1 (en) * | 2006-01-18 | 2007-07-19 | Comrie Douglas C | Methods of operating a coal burning facility |
US20070184394A1 (en) * | 2006-02-07 | 2007-08-09 | Comrie Douglas C | Production of cementitious ash products with reduced carbon emissions |
US20080286703A1 (en) * | 2004-06-28 | 2008-11-20 | Nox Ii International Ltd. | Reducing Sulfur Gas Emissions Resulting from the Burning of Carbonaceous Fuels |
US7758827B2 (en) | 2005-03-17 | 2010-07-20 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US20110269079A1 (en) * | 2010-04-28 | 2011-11-03 | Enviromental Energy Services, Inc. | Process for operating a utility boiler and methods therefor |
US8124036B1 (en) | 2005-10-27 | 2012-02-28 | ADA-ES, Inc. | Additives for mercury oxidation in coal-fired power plants |
US8372362B2 (en) | 2010-02-04 | 2013-02-12 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
US8383071B2 (en) | 2010-03-10 | 2013-02-26 | Ada Environmental Solutions, Llc | Process for dilute phase injection of dry alkaline materials |
US8496894B2 (en) | 2010-02-04 | 2013-07-30 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
US8524179B2 (en) | 2010-10-25 | 2013-09-03 | ADA-ES, Inc. | Hot-side method and system |
US8784757B2 (en) | 2010-03-10 | 2014-07-22 | ADA-ES, Inc. | Air treatment process for dilute phase injection of dry alkaline materials |
US8883099B2 (en) | 2012-04-11 | 2014-11-11 | ADA-ES, Inc. | Control of wet scrubber oxidation inhibitor and byproduct recovery |
US8951487B2 (en) | 2010-10-25 | 2015-02-10 | ADA-ES, Inc. | Hot-side method and system |
US8974756B2 (en) | 2012-07-25 | 2015-03-10 | ADA-ES, Inc. | Process to enhance mixing of dry sorbents and flue gas for air pollution control |
US9017452B2 (en) | 2011-11-14 | 2015-04-28 | ADA-ES, Inc. | System and method for dense phase sorbent injection |
US10350545B2 (en) | 2014-11-25 | 2019-07-16 | ADA-ES, Inc. | Low pressure drop static mixing system |
US10465137B2 (en) | 2011-05-13 | 2019-11-05 | Ada Es, Inc. | Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers |
US10767130B2 (en) | 2012-08-10 | 2020-09-08 | ADA-ES, Inc. | Method and additive for controlling nitrogen oxide emissions |
-
1914
- 1914-08-17 US US85710914A patent/US1167471A/en not_active Expired - Lifetime
Cited By (67)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3630696A (en) * | 1969-10-27 | 1971-12-28 | Trimex Corp | Combustion adjuvant |
US3628925A (en) * | 1970-02-16 | 1971-12-21 | Trimex Corp | Combustion adjuvant |
US4232615A (en) * | 1979-06-11 | 1980-11-11 | Aluminum Company Of America | Coal burning method to reduce particulate and sulfur emissions |
US4308808A (en) * | 1979-06-11 | 1982-01-05 | Aluminum Company Of America | Coal burning method to reduce particulate and sulfur emissions |
US4582005A (en) * | 1984-12-13 | 1986-04-15 | Aluminum Company Of America | Fuel burning method to reduce sulfur emissions and form non-toxic sulfur compounds |
US4542704A (en) * | 1984-12-14 | 1985-09-24 | Aluminum Company Of America | Three-stage process for burning fuel containing sulfur to reduce emission of particulates and sulfur-containing gases |
US20080286703A1 (en) * | 2004-06-28 | 2008-11-20 | Nox Ii International Ltd. | Reducing Sulfur Gas Emissions Resulting from the Burning of Carbonaceous Fuels |
US9133408B2 (en) | 2004-06-28 | 2015-09-15 | Nox Ii, Ltd. | Reducing sulfur gas emissions resulting from the burning of carbonaceous fuels |
US8574324B2 (en) | 2004-06-28 | 2013-11-05 | Nox Ii, Ltd. | Reducing sulfur gas emissions resulting from the burning of carbonaceous fuels |
US8226913B2 (en) | 2005-03-17 | 2012-07-24 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US10962224B2 (en) | 2005-03-17 | 2021-03-30 | Nox Ii, Ltd. | Sorbents for coal combustion |
US20090117019A1 (en) * | 2005-03-17 | 2009-05-07 | Comrie Douglas C | Reducing mercury emissions from the burning of coal |
US7674442B2 (en) | 2005-03-17 | 2010-03-09 | Comrie Douglas C | Reducing mercury emissions from the burning of coal |
US7758827B2 (en) | 2005-03-17 | 2010-07-20 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US7776301B2 (en) | 2005-03-17 | 2010-08-17 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US7955577B2 (en) | 2005-03-17 | 2011-06-07 | NOx II, Ltd | Reducing mercury emissions from the burning of coal |
US20110203499A1 (en) * | 2005-03-17 | 2011-08-25 | Nox Ii, Ltd. | Reducing Mercury Emissions From The Burning Of Coal |
US11732888B2 (en) | 2005-03-17 | 2023-08-22 | Nox Ii, Ltd. | Sorbents for coal combustion |
US9702554B2 (en) | 2005-03-17 | 2017-07-11 | Nox Ii, Ltd. | Sorbents for coal combustion |
US9169453B2 (en) | 2005-03-17 | 2015-10-27 | Nox Ii, Ltd. | Sorbents for coal combustion |
US9416967B2 (en) | 2005-03-17 | 2016-08-16 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US9822973B2 (en) | 2005-03-17 | 2017-11-21 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US11732889B2 (en) | 2005-03-17 | 2023-08-22 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal by remote sorbent addition |
US11060723B2 (en) | 2005-03-17 | 2021-07-13 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal by remote sorbent addition |
US7507083B2 (en) | 2005-03-17 | 2009-03-24 | Douglas C Comrie | Reducing mercury emissions from the burning of coal |
US8501128B2 (en) | 2005-03-17 | 2013-08-06 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US10670265B2 (en) | 2005-03-17 | 2020-06-02 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US8545778B2 (en) * | 2005-03-17 | 2013-10-01 | Nox Ii, Ltd. | Sorbents for coal combustion |
US20060210463A1 (en) * | 2005-03-17 | 2006-09-21 | Comrie Douglas C | Reducing mercury emissions from the burning of coal |
US8658115B2 (en) | 2005-03-17 | 2014-02-25 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US8703081B2 (en) | 2005-03-17 | 2014-04-22 | Nox Ii, Ltd. | Sorbents for coal combustion |
US10641483B2 (en) | 2005-03-17 | 2020-05-05 | Nox Ii, Ltd. | Sorbents for coal combustion |
US10612779B2 (en) | 2005-03-17 | 2020-04-07 | Nox Ii, Ltd. | Sorbents for coal combustion |
US8920158B2 (en) | 2005-03-17 | 2014-12-30 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US10359192B2 (en) | 2005-03-17 | 2019-07-23 | Nox Ii, Ltd. | Reducing mercury emissions from the burning of coal |
US9945557B2 (en) | 2005-03-17 | 2018-04-17 | Nox Ii, Ltd. | Sorbents for coal combustion |
US8293196B1 (en) | 2005-10-27 | 2012-10-23 | ADA-ES, Inc. | Additives for mercury oxidation in coal-fired power plants |
US8124036B1 (en) | 2005-10-27 | 2012-02-28 | ADA-ES, Inc. | Additives for mercury oxidation in coal-fired power plants |
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US20070184394A1 (en) * | 2006-02-07 | 2007-08-09 | Comrie Douglas C | Production of cementitious ash products with reduced carbon emissions |
US9884286B2 (en) | 2010-02-04 | 2018-02-06 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
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US9352275B2 (en) | 2010-02-04 | 2016-05-31 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
US10427096B2 (en) | 2010-02-04 | 2019-10-01 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
US9221013B2 (en) | 2010-02-04 | 2015-12-29 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
US8496894B2 (en) | 2010-02-04 | 2013-07-30 | ADA-ES, Inc. | Method and system for controlling mercury emissions from coal-fired thermal processes |
US9149759B2 (en) | 2010-03-10 | 2015-10-06 | ADA-ES, Inc. | Air treatment process for dilute phase injection of dry alkaline materials |
US8383071B2 (en) | 2010-03-10 | 2013-02-26 | Ada Environmental Solutions, Llc | Process for dilute phase injection of dry alkaline materials |
US8784757B2 (en) | 2010-03-10 | 2014-07-22 | ADA-ES, Inc. | Air treatment process for dilute phase injection of dry alkaline materials |
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US10465137B2 (en) | 2011-05-13 | 2019-11-05 | Ada Es, Inc. | Process to reduce emissions of nitrogen oxides and mercury from coal-fired boilers |
US9017452B2 (en) | 2011-11-14 | 2015-04-28 | ADA-ES, Inc. | System and method for dense phase sorbent injection |
US9889405B2 (en) | 2012-04-11 | 2018-02-13 | ADA-ES, Inc. | Control of wet scrubber oxidation inhibitor and byproduct recovery |
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US8974756B2 (en) | 2012-07-25 | 2015-03-10 | ADA-ES, Inc. | Process to enhance mixing of dry sorbents and flue gas for air pollution control |
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