EP3296666A1 - Préparation d'amidon pour l'hydrophobisation de papier - Google Patents

Préparation d'amidon pour l'hydrophobisation de papier Download PDF

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Publication number
EP3296666A1
EP3296666A1 EP16188670.0A EP16188670A EP3296666A1 EP 3296666 A1 EP3296666 A1 EP 3296666A1 EP 16188670 A EP16188670 A EP 16188670A EP 3296666 A1 EP3296666 A1 EP 3296666A1
Authority
EP
European Patent Office
Prior art keywords
heat
starch
paper
stream
thermal energy
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP16188670.0A
Other languages
German (de)
English (en)
Inventor
Florian REISSNER
Hermann Schwarz
Jochen SCHÄFER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to EP16188670.0A priority Critical patent/EP3296666A1/fr
Priority to ES17746414T priority patent/ES2834075T3/es
Priority to BR112019004432-9A priority patent/BR112019004432B1/pt
Priority to PCT/EP2017/068003 priority patent/WO2018050317A1/fr
Priority to CN201780049658.3A priority patent/CN109642758A/zh
Priority to CN202311283158.XA priority patent/CN117346382A/zh
Priority to EP17746414.6A priority patent/EP3475631B1/fr
Publication of EP3296666A1 publication Critical patent/EP3296666A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B27/00—Machines, plants or systems, using particular sources of energy
    • F25B27/02—Machines, plants or systems, using particular sources of energy using waste heat, e.g. from internal-combustion engines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • F25B40/06—Superheaters
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/28—Starch
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H19/00—Coated paper; Coating material
    • D21H19/36—Coatings with pigments
    • D21H19/44—Coatings with pigments characterised by the other ingredients, e.g. the binder or dispersing agent
    • D21H19/54—Starch
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers

Definitions

  • the invention relates to an apparatus and a process for the treatment of starch for a hydrophobization of paper.
  • paper also includes cardboard or cardboard.
  • starch for the hydrophobization of paper, which is also referred to as sizing of paper, especially in packaging papers and graphic papers starch of various origins, mainly wheat starch, but for example, potato starch, is used, which is modified for this use.
  • the starch for example, is delivered to paper production in tanker trucks and activated on site, being heated to a process temperature. This is often done by means of live steam, which is provided by steam generation.
  • the invention has for its object to provide an improved apparatus and an improved method for the treatment of starch for a hydrophobization of paper.
  • a device according to the invention for processing starch for hydrophobing paper comprises a heat pump, which absorbs thermal energy from a waste heat stream of paper production of the paper and releases it to a process temperature for heating the starch.
  • the device makes it possible to use waste heat produced during papermaking for the treatment of starch for hydrophobing the paper produced. This advantageously reduces the energy consumption and the production costs of paper production.
  • the device for this purpose comprises a heat pump, which absorbs thermal energy from a waste heat stream of paper production of the paper and releases it to a process temperature for heating the starch. This eliminates in particular the conventional heating of the starch by live steam, which must be provided by a steam generation and causes increased energy consumption.
  • the heat pump is a compression heat pump, a closed heat transfer circuit for a heat transfer medium, an evaporator for absorbing thermal energy of the waste heat by evaporation of the heat carrier, an electrically driven compressor for compressing the vaporized heat carrier and a condenser for discharging thermal Having energy by condensing the vaporized heat carrier.
  • the use of an electrically driven compression heat pump makes it possible, in particular, to prepare the starch independently of fossil fuels.
  • a further embodiment of the invention provides that the heat pump has a recuperator for cooling the condensed heat carrier and heating the vaporized heat carrier.
  • COP coefficient of performance
  • the coefficient of performance of the heat pump can be increased by a recuperator by about 15%.
  • a further embodiment of the invention provides that the heat transfer medium is the refrigerant R-1233zd or the refrigerant R-1336mzz.
  • R-1233zd refers to trans-1-chloro-3,3,3-trifluoropropene (CAS number 102687-65-0).
  • R-1336mzz refers to cis-1,1,1,4,4,4-hexafluoro-2-butene (CAS number 692-49-9).
  • These heat carriers can advantageously condense at high temperatures and at the same time under moderate pressures. In addition, these heat carriers are not flammable, non-toxic and therefore particularly ecologically advantageous.
  • Another embodiment of the invention provides a preheater for preheating the starch to a preheat temperature prior to heating the starch to the process temperature.
  • the preheater transmits thermal energy from the waste heat stream cooled by the heat pump to the starch. By such a preheater thermal energy of the waste heat stream can be used more efficiently.
  • a further embodiment of the invention provides that the process temperature is about 125 ° C. Heating the starch to a process temperature of about 125 ° C advantageously allows use of the starch to hydrophobize paper without additional heating of the starch.
  • the waste heat stream is an exhaust air stream of a dryer section of a paper machine or a contaminated vapor stream or a liquid condensate stream.
  • a further embodiment of the invention provides a heat exchanger for the direct delivery of thermal energy through the heat pump to the starch.
  • An alternative embodiment of the invention provides a heat transfer link for forwarding heat energy from the heat pump to the starch.
  • a direct release of thermal Energy from the heat pump to the power allows a higher coefficient of performance of the heat pump, and thus a more efficient use of the waste heat flux, as opposed to being delivered by a heat transfer link.
  • Indirect delivery of thermal energy by the heat pump via a heat transfer linkage facilitates retrofitting of existing paper machines by a heat pump for hydrophobing paper.
  • thermal energy is taken up by a heat pump from a waste heat stream of the papermaking of the paper and released to a process temperature for heating the starch.
  • a paper machine according to the invention has a device according to the invention for the treatment of starch for a hydrophobization of paper.
  • the advantages of such a paper machine result from the abovementioned advantages of a device according to the invention for processing starch for hydrophobing paper.
  • FIG. 1 schematically shows a paper machine 100 with a first embodiment of a device 1 for the preparation of starch 3 for a hydrophobization of paper.
  • the device 1 comprises a heat pump 5 and a heat exchanger 7.
  • the heat pump 5 absorbs thermal energy from a waste heat stream 9 of the papermaking of the paper and releases it in the heat exchanger 7 to the thickness 3.
  • the waste heat stream 9 is, for example, an exhaust air stream of a drying section 102 of the paper machine 100.
  • the waste heat stream 9 may also be a contaminated vapor stream which arises during papermaking or a liquid condensate stream which arises during papermaking of the paper.
  • the waste heat stream 9 is cooled by the heat pump 5, for example, from about 100 ° C to about 80 ° C.
  • the thickness 3 is heated in the heat exchanger 7, for example, from about 20 ° C to a process temperature of the hydrophobing of about 125 ° C.
  • the heat pump 5 is a high-temperature heat pump designed as a compression heat pump.
  • the heat pump 5 comprises a closed heat transfer circuit 11, an evaporator 13, an electrically driven compressor 15, a condenser 17, an expansion unit 19 and a recuperator 21.
  • a heat transfer medium circulates.
  • the heat transfer medium is for example a halogenated hydrocarbon.
  • the heat carrier is particularly preferably the refrigerant R-1233zd or the refrigerant R-1336mzz.
  • the heat transfer medium evaporates while absorbing thermal energy from the waste heat flow 9.
  • the compressor 15 compresses the heat transfer medium and thereby causes the circulation of the heat transfer medium in the heat transfer circuit 11.
  • the heat carrier condenses with the release of condensation heat.
  • the condenser 17 is integrated in the heat exchanger 7, so that the heat of condensation is released directly to the thickness 3 and the thickness 3 is heated to the process temperature.
  • the expansion unit 19 relaxes the heat transfer medium to a reduced pressure p.
  • the recuperator 21 cools the condensed heat carrier and heats the vaporized heat transfer medium.
  • FIG. 2 shows an example of an enthalpy pressure diagram of a heat carrier 3 of the heat pump 5 in FIG. 1 shown device 1, wherein the heat carrier in this example is R1233zd.
  • the abscissa of the enthalpy pressure diagram plots a specific enthalpy h in kJ / kg. On the ordinate, the pressure p is plotted logarithmically in bar.
  • the diagram shows a family of curves of isotherms 27, wherein a temperature of the heat carrier is indicated above the respective isotherm 27 in degrees Celsius. Points on the isotherms 27, at which the slope of an isotherm 27 changes abruptly, correspond to phase boundaries of the heat carrier. These points are connected by a phase boundary curve 29.
  • Isentropene 31 is also shown. The number at an isentropic 31 indicates the specific entropy of the heat carrier on this isentrope 31 in kJ / (kg ⁇ K).
  • FIG. 2 also shows a thermodynamic cycle of the heat carrier in the heat transfer circuit 11 with process points 33 to 36.
  • a polytrope compression of the heat carrier by the compressor 15 Between the process points 34 and 35 is a Isobaric cooling and liquefaction of the heat carrier through the condenser 17 and the recuperator 21.
  • a relaxation of the heat carrier by the expansion unit 19 takes place between the process points 36 and 33 isobaric evaporation and heating of the heat carrier through the evaporator 13 and the recuperator 21.
  • the heat transfer medium is present as a liquid in the left-hand area of the enthalpy pressure diagram. Therefore, the rise of the isotherms 27 is very steep there. In the right-hand area of the diagram, the heat carrier is present as gas and the isotherms 27 decrease more slowly with increasing specific enthalpy h.
  • FIG. 3 shows a second embodiment of an apparatus 1 for the preparation of starch 3 for a hydrophobization of paper.
  • This embodiment differs from that in FIG. 1 illustrated embodiment only in that the capacitor 17 of the heat pump 5 is not integrated into the heat exchanger 7, but is coupled via a heat transfer intermediate circuit 23 to the heat exchanger 7. Accordingly, in the condenser 17, heat of condensation emitted by the heat carrier is not released directly to the starch 3, but is transported by the heat transfer intermediate circuit 23 to the heat exchanger 7 and delivered to the heat carrier.
  • the heat transfer intermediate circuit 23 includes a transmission medium, such as water, for transporting thermal energy from the condenser 17 to the heat exchanger 7.
  • the interposition of the heat transfer intermediate circuit 23 reduces the coefficient of performance of the heat pump 5 with respect to in FIG. 1 illustrated first embodiment, but allows or facilitates retrofitting existing paper machines 100 by a heat pump 5 for the hydrophobization of paper.
  • FIG. 4 shows a third embodiment of an apparatus 1 for the preparation of starch 3 for a hydrophobization of paper.
  • This embodiment is different from the in FIG. 1 illustrated embodiment only by an additional preheater 25 for preheating the thickness 3 to a preheating temperature before heating the thickness of 3 to the process temperature in the heat exchanger 7.
  • the preheater 25 transfers thermal energy from the cooled by the evaporator 13 waste heat stream 9 to the thickness of third
  • the thickness 3 in the preheater 25 is heated from about 20 ° C to about 75 ° C.
  • thermal energy of the waste heat stream 9 can be used more efficiently and the residence time of the starch 3 in the heat exchanger 7 for heating the starch 3 to the process temperature can be shortened.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Paper (AREA)
EP16188670.0A 2016-09-14 2016-09-14 Préparation d'amidon pour l'hydrophobisation de papier Withdrawn EP3296666A1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
EP16188670.0A EP3296666A1 (fr) 2016-09-14 2016-09-14 Préparation d'amidon pour l'hydrophobisation de papier
ES17746414T ES2834075T3 (es) 2016-09-14 2017-07-17 Máquina para fabricar papel con un dispositivo para el tratamiento de almidón, y procedimiento para el tratamiento de almidón para una hidrofobización de papel en una máquina para fabricar papel
BR112019004432-9A BR112019004432B1 (pt) 2016-09-14 2017-07-17 Máquina de produção de papel, e, processo para preparação de amido
PCT/EP2017/068003 WO2018050317A1 (fr) 2016-09-14 2017-07-17 Préparation d'amidon pour l'imperméabilisation de papier
CN201780049658.3A CN109642758A (zh) 2016-09-14 2017-07-17 用于纸张疏水化的淀粉的制备
CN202311283158.XA CN117346382A (zh) 2016-09-14 2017-07-17 用于纸张疏水化的淀粉的制备
EP17746414.6A EP3475631B1 (fr) 2016-09-14 2017-07-17 Machine a papier avec un dispositif de preparation d'amidon et procede de preparation d'amidon pour l'hydrophobisation du papier dans une machine a papier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16188670.0A EP3296666A1 (fr) 2016-09-14 2016-09-14 Préparation d'amidon pour l'hydrophobisation de papier

Publications (1)

Publication Number Publication Date
EP3296666A1 true EP3296666A1 (fr) 2018-03-21

Family

ID=57130147

Family Applications (2)

Application Number Title Priority Date Filing Date
EP16188670.0A Withdrawn EP3296666A1 (fr) 2016-09-14 2016-09-14 Préparation d'amidon pour l'hydrophobisation de papier
EP17746414.6A Active EP3475631B1 (fr) 2016-09-14 2017-07-17 Machine a papier avec un dispositif de preparation d'amidon et procede de preparation d'amidon pour l'hydrophobisation du papier dans une machine a papier

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP17746414.6A Active EP3475631B1 (fr) 2016-09-14 2017-07-17 Machine a papier avec un dispositif de preparation d'amidon et procede de preparation d'amidon pour l'hydrophobisation du papier dans une machine a papier

Country Status (5)

Country Link
EP (2) EP3296666A1 (fr)
CN (2) CN117346382A (fr)
BR (1) BR112019004432B1 (fr)
ES (1) ES2834075T3 (fr)
WO (1) WO2018050317A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4327790A1 (fr) 2022-08-25 2024-02-28 Corman SpA Produit absorbant biodégradable

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721575A (en) * 1971-01-05 1973-03-20 Nat Starch Chem Corp Continuous process for the preparation of modified starch dispersions
WO1987006284A1 (fr) * 1986-04-17 1987-10-22 Tch Thermo-Consulting-Heidelberg Gmbh Systeme pour la recuperation de la chaleur perdue contenue dans l'air d'evacuation provenant des sechoirs pour machines a papier
US5061345A (en) * 1991-02-21 1991-10-29 Green Bay Packaging Inc. Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste
WO2003021039A1 (fr) * 2001-09-06 2003-03-13 Stora Enso Aktiebolag Composition de traitement de surface, procede dans la fabrication de papier ou de carton, papier ou carton et utilisation d'une composition de traitement de surface
AT506077A4 (de) * 2008-01-29 2009-06-15 Andritz Ag Maschf Abwärmenutzung in der trockenpartie von papiermaschinen
US20120000236A1 (en) * 2009-04-13 2012-01-05 Panasonic Corporation Heat pump heating system
WO2016016297A1 (fr) * 2014-07-29 2016-02-04 Siemens Aktiengesellschaft Procédé et dispositif de séchage d'un produit à sécher, installation industrielle, papeterie et dispositif de commande

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2898897B1 (fr) * 2006-03-21 2012-06-15 Roquette Freres Nouveaux procede et dispositif de cuisson d'une matiere amylacee a hautes matieres seches pour la preparation d'une composition adhesive
CN101818454B (zh) * 2010-02-09 2011-11-16 广西大学 氟碳接枝淀粉防水防油剂及其制备方法
CN102154919A (zh) * 2010-12-03 2011-08-17 江门市高力依科技实业有限公司 一种造纸制备方法
CN104456610B (zh) * 2014-12-02 2017-10-17 新疆工程学院 一种蒸汽喷射式热泵循环的烟气余热回收系统
CN204987434U (zh) * 2015-06-19 2016-01-20 浙江益纸淀粉有限公司 用于造纸淀粉生产的加热水箱
CN105627727A (zh) * 2015-12-24 2016-06-01 衡山县逢缘草艺开发有限责任公司 一种烘干系统

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721575A (en) * 1971-01-05 1973-03-20 Nat Starch Chem Corp Continuous process for the preparation of modified starch dispersions
WO1987006284A1 (fr) * 1986-04-17 1987-10-22 Tch Thermo-Consulting-Heidelberg Gmbh Systeme pour la recuperation de la chaleur perdue contenue dans l'air d'evacuation provenant des sechoirs pour machines a papier
US5061345A (en) * 1991-02-21 1991-10-29 Green Bay Packaging Inc. Method of making a multiple ply paper product containing an outer ply of reclaimed white office waste
WO2003021039A1 (fr) * 2001-09-06 2003-03-13 Stora Enso Aktiebolag Composition de traitement de surface, procede dans la fabrication de papier ou de carton, papier ou carton et utilisation d'une composition de traitement de surface
AT506077A4 (de) * 2008-01-29 2009-06-15 Andritz Ag Maschf Abwärmenutzung in der trockenpartie von papiermaschinen
US20120000236A1 (en) * 2009-04-13 2012-01-05 Panasonic Corporation Heat pump heating system
WO2016016297A1 (fr) * 2014-07-29 2016-02-04 Siemens Aktiengesellschaft Procédé et dispositif de séchage d'un produit à sécher, installation industrielle, papeterie et dispositif de commande

Also Published As

Publication number Publication date
CN109642758A (zh) 2019-04-16
EP3475631A1 (fr) 2019-05-01
ES2834075T3 (es) 2021-06-16
BR112019004432B1 (pt) 2021-10-19
CN117346382A (zh) 2024-01-05
EP3475631B1 (fr) 2020-08-26
BR112019004432A2 (pt) 2019-05-28
WO2018050317A1 (fr) 2018-03-22

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