WO2011028188A1 - Incineration concept of glycerine or glycerine mixtures and atmospheric vaporizer burner - Google Patents

Incineration concept of glycerine or glycerine mixtures and atmospheric vaporizer burner Download PDF

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Publication number
WO2011028188A1
WO2011028188A1 PCT/SK2010/000005 SK2010000005W WO2011028188A1 WO 2011028188 A1 WO2011028188 A1 WO 2011028188A1 SK 2010000005 W SK2010000005 W SK 2010000005W WO 2011028188 A1 WO2011028188 A1 WO 2011028188A1
Authority
WO
WIPO (PCT)
Prior art keywords
glycerol
incineration
burner
organized
evaporation burner
Prior art date
Application number
PCT/SK2010/000005
Other languages
French (fr)
Inventor
Ladislav ŠTIBRANYI
Pavel TIMÁR
Original Assignee
Stibranyi Ladislav
Timar Pavel
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from SK5059-2009A external-priority patent/SK50592009A3/en
Priority claimed from SK5072-2009U external-priority patent/SK5483Y1/en
Application filed by Stibranyi Ladislav, Timar Pavel filed Critical Stibranyi Ladislav
Publication of WO2011028188A1 publication Critical patent/WO2011028188A1/en

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D3/00Burners using capillary action
    • F23D3/40Burners using capillary action the capillary action taking place in one or more rigid porous bodies
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/05Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste oils
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23CMETHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C2900/00Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
    • F23C2900/99009Combustion process using vegetable derived fuels, e.g. from rapes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2212/00Burner material specifications
    • F23D2212/10Burner material specifications ceramic
    • F23D2212/103Fibres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2212/00Burner material specifications
    • F23D2212/20Burner material specifications metallic
    • F23D2212/201Fibres
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D2900/00Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/05002Use of porous members to convert liquid fuel into vapor

Definitions

  • the invention relates to the method of incineration of glycerol and glycerol mixtures coming mainly as liquid waste and to the design of suitable atmospheric evaporation burner.
  • the invention comes under the topic ecological utilization of liquid glycerol wastes and by-products of chemical production.
  • TAG found in vegetable oils or animal fats gives rise to 12 - 15 % of raw glycerol. It is a natural by-product, requiring additional processing before further use.
  • the purity of raw glycerol can be 50 to 60%, depending on starting materials and technology used. Accordingly, the raw glycerol phase formed during manufacturing of biodiesel contains 52 to 58 % glycerol, 21 to 23% methanol, 1 to 2% water, 4.2 - 4.8% potassium hydroxide and 15 to 23% of fats.
  • the glycerol is evaporated from the surface of the hot evaporation burner. It is essential that the mass or material of the atmospheric evaporation burner be soaked with glycerol or glycerol mixture.
  • One example can be the use of burner tray containing the evaporation material itself, whereby liquid glycerol or glycerol mixture is fed into it. Successful burning requires that the porous/filamentous mass or material not be totally submerged in the liquid.
  • the burner is advantageously made wholly or partly of metal.
  • atmospheric evaporation burner can consist of steel wool as filamentous non-organized material.
  • the burner can just as well be formed of organized e.g. copper filaments.
  • Another embodiment of the burner can use organized structure of metallic and inorganic filaments.
  • the atmospheric evaporation burner is formed of porous inorganic matter.
  • Atmospheric evaporation burner represents a design element or simple device for gasification of the fuel and supporting the burning of the generated vapours.
  • Figure 1 shows the technical design of a partly submerged atmospheric evaporation burner in burner tray with glycerol inlet.
  • Figure 2 shows the design of the glycerol inlet itself, a fixture bringing glycerol directly to surface of the atmospheric evaporation burner.
  • This example shows an embodiment of the invention involving one method of incineration of glycerol or glycerol mixtures according to this invention as well as an atmospheric evaporation burner, which is part of the solution.
  • the fuel is first converted to vapour and then the glycerol and other vapours are burned in atmospheric oxygen 2, as shown on Figure 1 .
  • the material in this embodiment of the atmospheric evaporation burner 3 was steel wool.
  • the technical design of the atmospheric evaporation burner 3 involves the use of an approx. 3 cm thick strip of steel wool, laid into the burner tray 4. Glycerol or glycerol mixture is fed in a controlled manner into the tray inlet 1, as shown on Figure 1 . Capillary forces transport the glycerol up to the surface of the material, making it ready to be ignited by e.g. liquid starter. After the glycerol has been ignited, the steel wool surface heats up and owing to its high heat conductivity the heat is transferred from the surface of burner 3 into its inner structure, thus leading to more evaporation of glycerol to be burned above the surface of the atmospheric evaporation burner 3.
  • An alternative design involves fuel flowing through inlet 1 directly at the surface of the atmospheric evaporation burner 3, as shown in Figure 2.
  • Atmospheric evaporation burner 3 can alternatively be made of mineral fibres or fabric or of porous inorganic matter.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)

Abstract

Method of incineration of glycerol or glycerol mixtures based on glycerol or glycerol mixtures being fed into an atmospheric evaporation burner, made of organized or non-organized porous or filamentous matter or material with heat conductivity λ = 1 to 430 W.m-1.K-1. Glycerol is first evaporated and then ignited and burned at the hot surface of evaporation burner in the presence of atmospheric oxygen. The thereby used atmospheric evaporation burner for incineration of glycerol or glycerol mixtures is formed by an organized and/or non-organized porous or filamentous matter or material with heat conductivity λ = 1 to 430 W.m-1. K-1. The burner is preferably made entirely or partially of metal. Atmospheric evaporation burner can have the form of steel wool, or be made of organized structure of metallic fibres with possible admixture of inorganic fibres.

Description

Incineration concept of glycerine or glycerine mixtures and atmospheric vaporizer burner
Field of the invention
The invention relates to the method of incineration of glycerol and glycerol mixtures coming mainly as liquid waste and to the design of suitable atmospheric evaporation burner. The invention comes under the topic ecological utilization of liquid glycerol wastes and by-products of chemical production.
Background of the invention
The disposal of liquid industrial wastes, including wastes associated with the production of biodiesel - the so-called G-phase, consisting mainly of glycerol has become a problem.
Trans-esterification of TAG found in vegetable oils or animal fats gives rise to 12 - 15 % of raw glycerol. It is a natural by-product, requiring additional processing before further use. The purity of raw glycerol can be 50 to 60%, depending on starting materials and technology used. Accordingly, the raw glycerol phase formed during manufacturing of biodiesel contains 52 to 58 % glycerol, 21 to 23% methanol, 1 to 2% water, 4.2 - 4.8% potassium hydroxide and 15 to 23% of fats. The raw glycerol phase - GVS arising during manufacturing of rape oil methyl ester is on the one hand supplied for further processing by suitable chemical and separatory procedures to pure glycerol, on the other it is also offered as an alternative fuel. Its direct use involves either co-burning or use in production of cement.
However, burning glycerol waste in standard incinerator units is difficult, since without additives it does not burn in classic burners. Glycerol can be incinerated only if other flammables and additives are added. Experiments towards improving the burnability (professor Cvengros" - Difficulties of burning G-phase and raw glycerol - APROCHEM 2008) were made showing that G-phase, when mixed with light fuel oil in the ratios 4: 1 to 1 : 1 could not be ignited, even in the Kroll burner, type KB/UB 200. Attempts to burn the 1 : 1 mixture of G- phase and vacuum distillate (V02) with an addition of detergent too met with failure, since the burning process remained unstable. Industrial scale experiments involving incineration of fuel oil mixed with G-phase containing some methanol in a monoblock Kroll burner, modified for burning processed waste oils were carried out. It turned out, that the G-phase could be burned provided the burner was started with the fuel oil and later switched to the G-phase + fuel oil mixture. The necessary prerequisite however seems to be the preheating of G-phase in order to lower its viscosity. However, the use of detergent, facilitating the mixing of fuel oil and glycerol, is demanding, both physically and economically.
In view of the above described difficulties a solution was sought for incineration of raw glycerol or glycerol wastes without additional flammables and oxidizing substances and without the need of complicated spraying burners.
As a result we now present the method of incineration of glycerol or glycerol mixtures, as well as the design of the requisite atmospheric evaporation burner.
Summary of the invention
The present process of burning glycerol and glycerol mixture as well as requisite new design of burner remove the above described shortcomings, the gist of the invention being feeding the liquid waste, such as glycerol or mixtures containing glycerol to an atmospheric evaporation burner, equipped with organized or non-organized porous and/or filamentous material with heat conductivity λ = 1 to 430 W.m"1. K" 1. The glycerol is evaporated from the surface of the hot evaporation burner. It is essential that the mass or material of the atmospheric evaporation burner be soaked with glycerol or glycerol mixture. There are various ways to achieve this objective. One example can be the use of burner tray containing the evaporation material itself, whereby liquid glycerol or glycerol mixture is fed into it. Successful burning requires that the porous/filamentous mass or material not be totally submerged in the liquid.
The process of burning glycerol and glycerol mixtures according to this invention has been developed for raw glycerol mixtures such the wastes formed during the production of biodiesel - the so-called G- phase, but also for burning of pure glycerol.
The method of incineration of glycerol or glycerol mixture according to this invention involves the use of atmospheric evaporation burner, the key design feature of which is the use of organized/non- organized porous/filamentous matter or material with heat conductivity λ = 1 to 430 W.m"1.K"1. The burner is advantageously made wholly or partly of metal. Thus atmospheric evaporation burner can consist of steel wool as filamentous non-organized material. The burner can just as well be formed of organized e.g. copper filaments. Another embodiment of the burner can use organized structure of metallic and inorganic filaments. In yet another embodiment the atmospheric evaporation burner is formed of porous inorganic matter.
For the purpose of this invention it must be understood that the term "atmospheric evaporation burner" represents a design element or simple device for gasification of the fuel and supporting the burning of the generated vapours.
The advantages of burning glycerol and glycerol mixtures according to this invention as well as the design and material of the atmospheric evaporation burner itself become apparent from the way the burner operates. It principal advantage is the simplicity of its design.
By using the above described materials flammable vapours are generated at the surface of burner without the need for forced air circulation, evaporation taking place at the high-surface area of the burner material, soaked in the fuel. Another important aspect is safety of the burning process. Overview of drawings
The design of the atmospheric evaporation burner for incineration of glycerol and glycerol mixtures according to this invention will be elucidated on attached drawings, where Figure 1 shows the technical design of a partly submerged atmospheric evaporation burner in burner tray with glycerol inlet. Figure 2 shows the design of the glycerol inlet itself, a fixture bringing glycerol directly to surface of the atmospheric evaporation burner.
Examples of various embodiments
It is understood that the individual embodiments of the technical design serve only illustration purposes without any limitations. Specialists skilled in art should be able to find by nothing more than a routine experimental work many equivalent solutions to the embodiments described here. Such equivalent solutions too are to be included in the patent claims.
Specialists skilled in the art should have no problems to select the scale of equipment as well as construction materials and arrangements, so that here we refrain from giving such details.
Example 1
This example shows an embodiment of the invention involving one method of incineration of glycerol or glycerol mixtures according to this invention as well as an atmospheric evaporation burner, which is part of the solution. In this embodiment glycerol or glycerol mixture is fed into the inlet 1 of the atmospheric evaporation burner 3^ made of non-organized filamentous material with mean heat conductivity λ = 45 to 47 W.m"1.K"1. At the hot surface of atmospheric evaporation burner the fuel is first converted to vapour and then the glycerol and other vapours are burned in atmospheric oxygen 2, as shown on Figure 1 . The material in this embodiment of the atmospheric evaporation burner 3 was steel wool. The technical design of the atmospheric evaporation burner 3 involves the use of an approx. 3 cm thick strip of steel wool, laid into the burner tray 4. Glycerol or glycerol mixture is fed in a controlled manner into the tray inlet 1, as shown on Figure 1 . Capillary forces transport the glycerol up to the surface of the material, making it ready to be ignited by e.g. liquid starter. After the glycerol has been ignited, the steel wool surface heats up and owing to its high heat conductivity the heat is transferred from the surface of burner 3 into its inner structure, thus leading to more evaporation of glycerol to be burned above the surface of the atmospheric evaporation burner 3. An alternative design involves fuel flowing through inlet 1 directly at the surface of the atmospheric evaporation burner 3, as shown in Figure 2.
Example 2
In this embodiment of the invention we describe the second method of incineration of glycerol or glycerol mixtures according to present invention. Now glycerol or mixtures containing glycerol are fed into the atmospheric evaporation burner 3 formed by organized filamentous material (copper mesh) with heat conductivity λ = 386 W.m" 1.K"1. At the surface of atmospheric evaporation burner 3 glycerol is first evaporated and then the vapours ignited and burned in atmospheric oxygen. One embodiment of organized filamentous material, used in atmospheric evaporation burner 3 can be e.g. a plaited wick made of copper wires of 0.02 to 0.08 mm diameter. The technical design of the atmospheric evaporation burner itself uses e.g. a cut piece of copper plaited wick with 20 cm width, piled up in pleats to a height of approx. 1 cm, and fixed in a supporting body. Atmospheric evaporation burner 3 can alternatively be made of mineral fibres or fabric or of porous inorganic matter. Industrial utility
Method of incinerating glycerol or glycerol mixtures according to this invention finds application mainly in burning of otherwise nonflammable liquid glycerol wastes.

Claims

PAT E N T C LA I M S
1. Method of incineration of glycerol or glycerol mixtures, c h a r a c t e r i z e d b y feeding the glycerol or glycerol mixture into an atmospheric evaporation burner made of organized/non-organized porous or filamentous matter or material possessing heat conductivity λ = 1 to 430 W.m"1.K"1, on the hot surface at which glycerol is first evaporated and then ignited and burned in the presence of atmospheric oxygen.
2. Atmospheric evaporation burner for incineration of glycerol or glycerol mixtures, c h a r a c t e r i z e d b y being of organized or non-organized porous or filamentous matter or material with heat conductivity λ = 1 to 430 W.m-1.K-1,
3. Atmospheric evaporation burner for incineration of glycerol or glycerol mixtures according to Claim 2, c h a r a c t e r i z e d b y being made partially or entirely of metal.
4. Atmospheric evaporation burner for incineration of glycerol or glycerol mixtures according to Claims 2 or 3, c h a r a c t e r i z e d b y being made of steel wool.
5. Atmospheric evaporation burner for incineration of glycerol or glycerol mixtures according to Claims 2 or 3, c h a r a c t e r i z e d b y being made of organized metal fibre structure.
6. Atmospheric evaporation burner for incineration of glycerol or glycerol mixtures according to Claims 2 or 3, c h a r a c t e r i z e d b y being made of metallic and inorganic fibres.
7. Atmospheric evaporation burner for incineration of glycerol or glycerol mixtures according to Claims 2 or 3, c h a r a c t e r i z e d b y being made of porous inorganic matter.
PCT/SK2010/000005 2009-09-07 2010-09-06 Incineration concept of glycerine or glycerine mixtures and atmospheric vaporizer burner WO2011028188A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
SKPUV5072-2009 2009-09-07
SK5059-2009A SK50592009A3 (en) 2009-09-07 2009-09-07 Method of combustion of glycerine or glycerine mixtures and atmospheric vaporising burner
SK5072-2009U SK5483Y1 (en) 2009-09-07 2009-09-07 Method of combustion of glycerine or glycerine mixtures and atmospheric evaporating burner
SKPP5059-2009 2009-09-07

Publications (1)

Publication Number Publication Date
WO2011028188A1 true WO2011028188A1 (en) 2011-03-10

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017044717A1 (en) * 2015-09-10 2017-03-16 Worcester Polytechnic Institute Systems and methods for in-situ clean up of burnable materials

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624633A (en) * 1985-01-09 1986-11-25 Mtc-Choice, Inc. High percentage glycol fuel and burner
US6035847A (en) * 1999-04-22 2000-03-14 Paul; Dennis Duane Easily ignited filler for canned heat container
US20020086253A1 (en) * 1995-05-10 2002-07-04 Young Thomas M. Vaporization and pressurization of liquid in a porous material
US6453672B1 (en) * 2001-03-15 2002-09-24 Alzeta Corporation Segmented surface-stabilized gas burner and method of use with gas turbines
WO2008000975A1 (en) * 2006-06-30 2008-01-03 Jean-Claude Fayard Burner for producing the combustion of substances believed to be difficult to burn
EP1978302A2 (en) * 2007-04-04 2008-10-08 J. Eberspächer GmbH Co. KG Vaporiser component, in particular for a vaporiser burner of a vehicle heater, and method for manufacturing a vaporiser component

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4624633A (en) * 1985-01-09 1986-11-25 Mtc-Choice, Inc. High percentage glycol fuel and burner
US20020086253A1 (en) * 1995-05-10 2002-07-04 Young Thomas M. Vaporization and pressurization of liquid in a porous material
US6035847A (en) * 1999-04-22 2000-03-14 Paul; Dennis Duane Easily ignited filler for canned heat container
US6453672B1 (en) * 2001-03-15 2002-09-24 Alzeta Corporation Segmented surface-stabilized gas burner and method of use with gas turbines
WO2008000975A1 (en) * 2006-06-30 2008-01-03 Jean-Claude Fayard Burner for producing the combustion of substances believed to be difficult to burn
EP1978302A2 (en) * 2007-04-04 2008-10-08 J. Eberspächer GmbH Co. KG Vaporiser component, in particular for a vaporiser burner of a vehicle heater, and method for manufacturing a vaporiser component

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017044717A1 (en) * 2015-09-10 2017-03-16 Worcester Polytechnic Institute Systems and methods for in-situ clean up of burnable materials
US10167602B2 (en) 2015-09-10 2019-01-01 Worcester Polytechnic Institute Systems and methods for in-situ clean up of burnable materials
US10900186B2 (en) 2015-09-10 2021-01-26 Worcester Polytechnic Institute Systems and methods for in-situ clean up of burnable materials

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