{"id":51347,"date":"2026-05-27T10:12:28","date_gmt":"2026-05-27T08:12:28","guid":{"rendered":"https:\/\/www.swecobelgium.be\/?post_type=blog&#038;p=51347"},"modified":"2026-05-27T10:12:28","modified_gmt":"2026-05-27T08:12:28","slug":"optimiser-le-chauffage-par-batch-une-utilisation-plus-intelligente-de-la-vapeur-pour-des-performances-plus-efficaces-des-echangeurs-de-chaleur","status":"publish","type":"blog","link":"https:\/\/www.swecobelgium.be\/fr\/actualites\/optimiser-le-chauffage-par-batch-une-utilisation-plus-intelligente-de-la-vapeur-pour-des-performances-plus-efficaces-des-echangeurs-de-chaleur\/","title":{"rendered":"Optimiser le chauffage par batch : une utilisation plus intelligente de la vapeur pour des performances plus efficaces des \u00e9changeurs de chaleur"},"content":{"rendered":"<section class=\"block block-share block--white\" >\n\t<div class=\"block__inner\">\n\t\t<div class=\"col--12 col--wrapper col--center\">\n            <div class=\"col col--12 editor-content col--center\">\n                <div class=\"share\">\n                    <p class=\"share-text\">Share on: <\/p>\n                    <div class=\"ss-inline-share-wrapper ss-hover-animation-fade ss-with-counter-border ss-inline-total-counter-left\"><div class=\"ss-inline-share-content\"><\/div><\/div>                <\/div>\n            <\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n<section class=\"block cb block--white\" id=\"Introduction\">\n\t<div class=\"block__inner cb__inner cb__inner--one\">\n\t<div class=\"col--12 col--center col--wrapper\">\n\t\t<div class=\"col col--6 editor-content\">\n\t\t\t<p><strong>Dans des secteurs tels que l\u2019industrie alimentaire, pharmaceutique et chimique, le chauffage par batch constitue un \u00e9l\u00e9ment essentiel des op\u00e9rations quotidiennes. Malgr\u00e9 son utilisation r\u00e9pandue, la conception thermique de ces syst\u00e8mes repose encore souvent sur des hypoth\u00e8ses moyennes simplifi\u00e9es. Bien que cette approche traditionnelle soit pratique d\u2019un point de vue engineering, elle conduit fr\u00e9quemment \u00e0 des \u00e9changeurs de chaleur surdimensionn\u00e9s, \u00e0 une consommation de vapeur inefficace et \u00e0 des performances de proc\u00e9d\u00e9 moins pr\u00e9visibles.<\/strong><br \/>\n<strong>Sweco pr\u00e9sente une m\u00e9thodologie plus avanc\u00e9e pour la conception des syst\u00e8mes de chauffage par batch. Cette approche vise \u00e0 aligner la consommation de vapeur sur le comportement thermique r\u00e9el du proc\u00e9d\u00e9, plut\u00f4t que de se baser sur des valeurs moyennes constantes.<\/strong><\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n<section class=\"block cb block--white\" id=\"Introduction\">\n\t<div class=\"block__inner cb__inner cb__inner--one\">\n\t<div class=\"col--12 col--center col--wrapper\">\n\t\t<div class=\"col col--6 editor-content\">\n\t\t\t<h2>Pourquoi les approches traditionnelles du chauffage par batch g\u00e9n\u00e8rent des inefficacit\u00e9s<\/h2>\n<p>Le chauffage par batch diff\u00e8re fondamentalement du chauffage continu. Dans un proc\u00e9d\u00e9 continu, les conditions thermiques restent relativement stables dans le temps. Dans un proc\u00e9d\u00e9 par batch, les temp\u00e9ratures, les taux de transfert thermique et la demande en vapeur \u00e9voluent constamment tout au long du cycle de chauffage.<\/p>\n<p>Malgr\u00e9 ce comportement dynamique, de nombreux syst\u00e8mes sont encore con\u00e7us sur la base d\u2019hypoth\u00e8ses de d\u00e9bit constant ou de charges thermiques moyennes. Selon Martin Ros, cela cr\u00e9e souvent un d\u00e9calage entre la demande r\u00e9elle du proc\u00e9d\u00e9 et la mani\u00e8re dont l\u2019\u00e9changeur de chaleur est con\u00e7u.<\/p>\n<blockquote>\n<figure><i class=\"icon icon-quote\"><\/i><\/figure>\n<p>\u00ab Le chauffage par batch n\u2019est pas un proc\u00e9d\u00e9 stationnaire. Nous ne devrions donc pas le concevoir comme s\u2019il l\u2019\u00e9tait. \u00bb<\/p><\/blockquote>\n<p>Lorsque les ing\u00e9nieurs con\u00e7oivent uniquement sur la base de valeurs moyennes, ils risquent de surdimensionner les \u00e9quipements ou de cr\u00e9er des syst\u00e8mes qui ne fonctionnent pas efficacement dans des conditions de production r\u00e9elles. Cela peut entra\u00eener une consommation \u00e9nerg\u00e9tique inutile, des temps de chauffe plus longs et un contr\u00f4le du proc\u00e9d\u00e9 moins pr\u00e9cis.<\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n<section class=\"block block--white columns\" >\n\t<div class=\"block__inner columns__inner\">\n\t\t<div class=\"col--11 col--wrapper col--stretch\">\n\t\t\t\n\t\t\t\t\t\t\t<div class=\"columns__col col col--6\">\n\t\t\t\t\t<div class=\"editor-content columns__content columns__content--image\">\n\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"7008\" height=\"3944\" src=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1.jpeg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1.jpeg 7008w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-200x113.jpeg 200w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-768x432.jpeg 768w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-1536x864.jpeg 1536w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-2048x1153.jpeg 2048w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-520x293.jpeg 520w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-800x450.jpeg 800w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-533x300.jpeg 533w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/batch-heating-design-1-652x367.jpeg 652w\" sizes=\"auto, (max-width: 7008px) 100vw, 7008px\" \/>\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"columns__col col col--6\">\n\t\t\t\t\t<div class=\"editor-content columns__content columns__content--content\">\n\t\t\t\t\t\t<h2>Une approche plus r\u00e9aliste du comportement de la vapeur<\/h2>\n<p>La m\u00e9thodologie propos\u00e9e introduit un profil dynamique de dosage de vapeur qui suit la trajectoire thermique r\u00e9elle du proc\u00e9d\u00e9 par batch. Au lieu de supposer une demande de vapeur constante, le mod\u00e8le refl\u00e8te l\u2019\u00e9volution naturelle du transfert thermique pendant le fonctionnement.<\/p>\n<p>Au d\u00e9but du proc\u00e9d\u00e9, la diff\u00e9rence de temp\u00e9rature entre la vapeur et le produit est importante, ce qui cr\u00e9e une forte force motrice pour le transfert thermique. \u00c0 mesure que la temp\u00e9rature du produit augmente, cette force motrice diminue progressivement. La demande en vapeur suit donc une d\u00e9croissance exponentielle plut\u00f4t qu\u2019un profil lin\u00e9aire.<\/p>\n<p>En mod\u00e9lisant ce comportement avec davantage de pr\u00e9cision, les ing\u00e9nieurs peuvent mieux pr\u00e9voir les performances du syst\u00e8me pendant l\u2019ensemble du cycle batch. Une plus grande quantit\u00e9 de vapeur est fournie lorsque la demande thermique est la plus \u00e9lev\u00e9e, tandis que l\u2019apport de vapeur diminue progressivement \u00e0 mesure que la temp\u00e9rature cible est atteinte. Cela permet un fonctionnement plus \u00e9quilibr\u00e9 et plus efficace.<\/p>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\n\n<section class=\"block cb block--white\" id=\"Introduction\">\n\t<div class=\"block__inner cb__inner cb__inner--one\">\n\t<div class=\"col--12 col--center col--wrapper\">\n\t\t<div class=\"col col--6 editor-content\">\n\t\t\t<h2>Am\u00e9liorer l\u2019efficacit\u00e9 \u00e9nerg\u00e9tique et le contr\u00f4le des proc\u00e9d\u00e9s<\/h2>\n<p>L\u2019un des principaux avantages de cette approche r\u00e9side dans l\u2019am\u00e9lioration de l\u2019<a href=\"https:\/\/www.swecobelgium.be\/fr\/expertise\/solutions-energetiques\/\">efficacit\u00e9 \u00e9nerg\u00e9tique<\/a>. \u00c9tant donn\u00e9 que la consommation de vapeur est davantage align\u00e9e sur la demande thermique r\u00e9elle, moins d\u2019\u00e9nergie est gaspill\u00e9e pendant le fonctionnement. En parall\u00e8le, les ing\u00e9nieurs b\u00e9n\u00e9ficient d\u2019une meilleure visibilit\u00e9 sur la consommation de vapeur et le comportement thermique bien avant la mise en service du syst\u00e8me.<\/p>\n<p>La m\u00e9thodologie am\u00e9liore \u00e9galement la pr\u00e9visibilit\u00e9 du proc\u00e9d\u00e9. Au lieu de s\u2019appuyer sur des hypoth\u00e8ses conservatrices, les ing\u00e9nieurs peuvent d\u00e9finir une enveloppe de fonctionnement plus r\u00e9aliste pour l\u2019\u00e9changeur de chaleur, le syst\u00e8me vapeur et les vannes de r\u00e9gulation. Cela permet un contr\u00f4le thermique plus pr\u00e9cis et des performances batch plus stables.<\/p>\n<p>Ces avantages sont particuli\u00e8rement pertinents dans les secteurs o\u00f9 la constance des proc\u00e9d\u00e9s et le contr\u00f4le de la temp\u00e9rature sont essentiels, tels que l\u2019industrie pharmaceutique, l\u2019agroalimentaire et les proc\u00e9d\u00e9s chimiques sp\u00e9cialis\u00e9s. Des applications comme les syst\u00e8mes d\u2019eau pour injection, les proc\u00e9d\u00e9s de nettoyage en place (CIP) et d\u2019autres op\u00e9rations thermiques pilot\u00e9es par batch peuvent tirer un b\u00e9n\u00e9fice important d\u2019un mod\u00e8le thermique plus pr\u00e9cis.<\/p>\n\t\t<\/div>\n\t<\/div>\n<\/div>\n<\/section>\n\n\n    <section class=\"block block--white contacts\" >\n        <div class=\"block__inner contacts__inner\">\n            <div class=\"col--11 col--wrapper col--stretch\">\n\t\t\t\t\t\t\t\t                    <div class=\"col col--6 person person--card--img\">\n                        <div class=\"person__inner\">\n\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"310\" height=\"420\" src=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-310x420.jpg\" class=\"attachment-people-card size-people-card wp-post-image\" alt=\"\" srcset=\"https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-310x420.jpg 310w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-148x200.jpg 148w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-768x1037.jpg 768w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-1517x2048.jpg 1517w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-520x702.jpg 520w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-800x1080.jpg 800w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-222x300.jpg 222w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros-333x450.jpg 333w, https:\/\/www.swecobelgium.be\/wp-content\/uploads\/sites\/12\/2026\/05\/martin-ros.jpg 1591w\" sizes=\"auto, (max-width: 310px) 100vw, 310px\" \/>                            <div class=\"person__content editor-content\">\n                                <p class=\"h4 hyphenate\">Martin Ros<\/p>                                <em><\/em>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"person__contact\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<button class=\"btn btn__small btn__secondary contact-info-btn\" data_contact-id=\"51338\" data-email-subject=\"?subject=info: Optimiser le chauffage par batch : une utilisation plus intelligente de la vapeur pour des performances plus efficaces des \u00e9changeurs de chaleur\">Show contact information<\/button>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t                            <\/div>\n                        <\/div>\n                    <\/div>\n\t\t\t\t            <\/div>\n        <\/div>\n    <\/section>\n\n\n<section class=\"block form-block block--lightgray\" id=\"contactez\">\n\t<div class=\"block__inner form-block__inner \">\n\n                    <div class=\"col--11 col--wrapper\">\n                                    <div class=\"col col--4 editor-content form-block__title\">\n                        <h3 class=\"h3 hyphenate\">Comment pouvons-nous vous aider ?<\/h3>                    <\/div>\n                    <div class=\"col--12 col\"><\/div>\n                \n                <div class=\"col col--4 editor-content\">\n                    Comment pouvons-nous aider votre entreprise ? Une \u00e9quipe d\u2019experts est pr\u00eate \u00e0 vous soutenir et \u00e0 voir comment nous pouvons vous aider avec votre demande. Lorsque vous soumettez ce formulaire, quelqu\u2019un de notre \u00e9quipe vous contactera. Ce formulaire est uniquement destin\u00e9 \u00e0 obtenir plus d\u2019informations sur nos solutions d\u2019entreprise Sweco.\r\n                <\/div>\n\n                <div class=\"col col--7\">\n                    <script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\nvar gform;gform||(document.addEventListener(\"gform_main_scripts_loaded\",function(){gform.scriptsLoaded=!0}),document.addEventListener(\"gform\/theme\/scripts_loaded\",function(){gform.themeScriptsLoaded=!0}),window.addEventListener(\"DOMContentLoaded\",function(){gform.domLoaded=!0}),gform={domLoaded:!1,scriptsLoaded:!1,themeScriptsLoaded:!1,isFormEditor:()=>\"function\"==typeof InitializeEditor,callIfLoaded:function(o){return!(!gform.domLoaded||!gform.scriptsLoaded||!gform.themeScriptsLoaded&&!gform.isFormEditor()||(gform.isFormEditor()&&console.warn(\"The use of gform.initializeOnLoaded() is deprecated in the form editor context and will be removed in Gravity Forms 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data-field-class=\"gform_textarea\" ><label class='gfield_label gform-field-label' for='input_19_8'>Comment pouvons-nous vous aider ?<span class=\"gfield_required\"><span class=\"gfield_required gfield_required_asterisk\">*<\/span><\/span><\/label><div class='ginput_container ginput_container_textarea'><textarea autocomplete=\"off\"  name='input_8' id='input_19_8' class='textarea medium'     aria-required=\"true\" aria-invalid=\"false\"   rows='10' cols='50'><\/textarea><\/div><\/li><li id=\"field_19_15\" class=\"gfield gfield--type-fileupload gfield--input-type-fileupload gfield--width-full field_sublabel_below gfield--no-description field_description_below field_validation_below gfield_visibility_visible gform_fileupload\"  data-field-class=\"gform_fileupload\" ><label class='gfield_label gform-field-label' for='gform_browse_button_19_15'>Ajoutez des fichiers joints<\/label><div class='ginput_container ginput_container_fileupload'><div id='gform_multifile_upload_19_15' data-settings='{&quot;runtimes&quot;:&quot;html5,flash,html4&quot;,&quot;browse_button&quot;:&quot;gform_browse_button_19_15&quot;,&quot;container&quot;:&quot;gform_multifile_upload_19_15&quot;,&quot;drop_element&quot;:&quot;gform_drag_drop_area_19_15&quot;,&quot;filelist&quot;:&quot;gform_preview_19_15&quot;,&quot;unique_names&quot;:true,&quot;file_data_name&quot;:&quot;file&quot;,&quot;url&quot;:&quot;https:\\\/\\\/www.swecobelgium.be\\\/fr\\\/?gf_page=6e53c2b1b13add7&quot;,&quot;flash_swf_url&quot;:&quot;https:\\\/\\\/www.swecobelgium.be\\\/wp-includes\\\/js\\\/plupload\\\/plupload.flash.swf&quot;,&quot;silverlight_xap_url&quot;:&quot;https:\\\/\\\/www.swecobelgium.be\\\/wp-includes\\\/js\\\/plupload\\\/plupload.silverlight.xap&quot;,&quot;filters&quot;:{&quot;mime_types&quot;:[{&quot;title&quot;:&quot;Fichiers autoris\\u00e9s&quot;,&quot;extensions&quot;:&quot;*&quot;}],&quot;max_file_size&quot;:&quot;52224000b&quot;},&quot;multipart&quot;:true,&quot;urlstream_upload&quot;:false,&quot;multipart_params&quot;:{&quot;form_id&quot;:19,&quot;field_id&quot;:15,&quot;_gform_file_upload_nonce_19_15&quot;:&quot;2fa11c3f7e&quot;},&quot;gf_vars&quot;:{&quot;max_files&quot;:0,&quot;message_id&quot;:&quot;gform_multifile_messages_19_15&quot;,&quot;disallowed_extensions&quot;:[&quot;php&quot;,&quot;asp&quot;,&quot;aspx&quot;,&quot;cmd&quot;,&quot;csh&quot;,&quot;bat&quot;,&quot;html&quot;,&quot;htm&quot;,&quot;hta&quot;,&quot;jar&quot;,&quot;exe&quot;,&quot;com&quot;,&quot;js&quot;,&quot;lnk&quot;,&quot;htaccess&quot;,&quot;phar&quot;,&quot;phtml&quot;,&quot;ps1&quot;,&quot;ps2&quot;,&quot;php3&quot;,&quot;php4&quot;,&quot;php5&quot;,&quot;php6&quot;,&quot;py&quot;,&quot;rb&quot;,&quot;tmp&quot;]}}' class='gform_fileupload_multifile'>\n\t\t\t\t\t\t\t\t\t\t<div id='gform_drag_drop_area_19_15' class='gform_drop_area gform-theme-field-control'>\n\t\t\t\t\t\t\t\t\t\t\t<span class='gform_drop_instructions'>D\u00e9posez des fichiers ici ou <\/span>\n\t\t\t\t\t\t\t\t\t\t\t<button type='button' id='gform_browse_button_19_15' class='button gform_button_select_files gform-theme-button gform-theme-button--control' aria-describedby=\"gfield_upload_rules_19_15\"  >S\u00e9lectionner des fichiers<\/button>\n\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t<\/div><span class='gfield_description gform_fileupload_rules' id='gfield_upload_rules_19_15'>Taille max. des fichiers\u00a0: 50 MB.<\/span><ul class='validation_message--hidden-on-empty gform-ul-reset' id='gform_multifile_messages_19_15'><\/ul> <div id='gform_preview_19_15' class='ginput_preview_list'><\/div><\/div><\/li><li id=\"field_19_12\" class=\"gfield gfield--type-consent gfield--type-choice gfield--input-type-consent gfield--width-full gfield_contains_required field_sublabel_below gfield--no-description field_description_below field_validation_below gfield_visibility_visible gform_consent\"  data-field-class=\"gform_consent\" ><label class='gfield_label gform-field-label gfield_label_before_complex' >Consentement<span class=\"gfield_required\"><span class=\"gfield_required gfield_required_asterisk\">*<\/span><\/span><\/label><div class='ginput_container ginput_container_consent'><input autocomplete=\"off\"  name='input_12.1' id='input_19_12_1' type='checkbox' value='1'   aria-required=\"true\" aria-invalid=\"false\"   \/> <label class=\"gform-field-label gform-field-label--type-inline gfield_consent_label\" for='input_19_12_1' >En envoyant vos informations, vous marquez votre accord avec la politique en mati\u00e8re de protection de la vie priv\u00e9e de Sweco. <a href=\"https:\/\/www.swecobelgium.be\/fr\/privacy-notice\/\">Cliquez ici<\/a> pour en savoir plus sur la mani\u00e8re dont nous sauvegardons vos donn\u00e9es.<\/label><input autocomplete=\"off\"  type='hidden' name='input_12.2' value='En envoyant vos informations, vous marquez votre accord avec la politique en mati\u00e8re de protection de la vie priv\u00e9e de Sweco. &lt;a href=&quot;https:\/\/www.swecobelgium.be\/fr\/privacy-notice\/&quot;&gt;Cliquez ici&lt;\/a&gt; pour en savoir plus sur la mani\u00e8re dont nous sauvegardons vos donn\u00e9es.' class='gform_hidden' \/><input autocomplete=\"off\"  type='hidden' name='input_12.3' value='16' class='gform_hidden' \/><\/div><\/li><li id=\"field_19_16\" class=\"gfield gfield--type-checkbox gfield--type-choice gfield--input-type-checkbox gfield--width-full field_sublabel_below gfield--has-description field_description_below field_validation_below gfield_visibility_visible gform_checkbox\"  data-field-class=\"gform_checkbox\" ><label class='gfield_label gform-field-label gfield_label_before_complex' >Communications par e-mail<\/label><div class='ginput_container ginput_container_checkbox'><ul class='gfield_checkbox' id='input_19_16'><li class='gchoice gchoice_19_16_1'>\n\t\t\t\t\t\t\t\t<input autocomplete=\"off\"  class='gfield-choice-input' name='input_16.1' type='checkbox'  value='J\u2019autorise l\u2019envoi de communications par e-mail concernant des mises \u00e0 jour, services ou \u00e9v\u00e9nements pertinents.'  id='choice_19_16_1'   aria-describedby=\"gfield_description_19_16\"\/>\n\t\t\t\t\t\t\t\t<label for='choice_19_16_1' id='label_19_16_1' class='gform-field-label gform-field-label--type-inline'>J\u2019autorise l\u2019envoi de communications par e-mail concernant des mises \u00e0 jour, services ou \u00e9v\u00e9nements pertinents.<\/label>\n\t\t\t\t\t\t\t<\/li><\/ul><\/div><div class='gfield_description' id='gfield_description_19_16'>Vous pouvez retirer votre consentement \u00e0 tout moment via le lien de d\u00e9sinscription dans nos e-mails.<\/div><\/li><\/ul><\/div>\n        <div class='gform-footer gform_footer top_label'> <button class='btn btn__primary' id='gform_submit_button_19'><span>Envoyer<\/span><\/button> 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