{"id":4429,"date":"2026-03-06T12:48:15","date_gmt":"2026-03-06T11:48:15","guid":{"rendered":"https:\/\/nitromatic.com\/com-funciona-un-generador-de-nitrogen\/"},"modified":"2026-04-01T17:38:00","modified_gmt":"2026-04-01T15:38:00","slug":"com-funciona-un-generador-de-nitrogen","status":"publish","type":"post","link":"https:\/\/nitromatic.com\/ca\/com-funciona-un-generador-de-nitrogen\/","title":{"rendered":"Com funciona un generador de nitrogen?"},"content":{"rendered":"\n<p>El nitrogen \u00e9s un dels gasos industrials m\u00e9s utilitzats al m\u00f3n, i cada vegada m\u00e9s empreses opten per produir-lo in situ en lloc de dependre de subministraments externs. Per\u00f2, com funciona exactament un generador de nitrogen? En aquest article t\u2019expliquem el seu principi de funcionament, les tecnologies disponibles i quan val la pena instal\u00b7lar-lo a la teva planta.  <\/p>\n\n<h2 class=\"wp-block-heading\">Qu\u00e8 \u00e9s un generador de nitrogen industrial?<\/h2>\n\n<p>Un generador de nitrogen industrial \u00e9s un equip que extreu nitrogen directament de l\u2019aire atmosf\u00e8ric, separant-lo de l\u2019oxigen per obtenir gas N\u2082 amb el nivell de puresa que requereix cada aplicaci\u00f3. L\u2019aire que respirem cont\u00e9 aproximadament un <strong>78 % de nitrogen<\/strong>, fet que el converteix en una font pr\u00e0cticament inesgotable i gratu\u00efta. <\/p>\n\n<p>Els <a href=\"https:\/\/nitromatic.com\/ca\/generadors-de-nitrogen\/\">generadors de nitrogen<\/a> permeten produir gas de manera cont\u00ednua i aut\u00f2noma, eliminant la depend\u00e8ncia d\u2019ampolles, palets o cisternes criog\u00e8niques. Els avantatges s\u00f3n immediats: reducci\u00f3 del cost operatiu, subministrament ininterromput 24\/7, puresa ajustable segons el proc\u00e9s i una major seguretat en eliminar la manipulaci\u00f3 d\u2019envasos a pressi\u00f3. <\/p>\n\n<h2 class=\"wp-block-heading\">Principi de funcionament: com se separa el nitrogen de l&#8217;aire<\/h2>\n\n<p>La separaci\u00f3 del nitrogen de la resta de components de l\u2019aire s\u2019aconsegueix aprofitant les difer\u00e8ncies de mida molecular o de permeabilitat entre el N\u2082 i l\u2019O\u2082. Existeixen dues tecnologies principals per aconseguir-ho sense necessitat de criog\u00e8nia: <\/p>\n\n<h3 class=\"wp-block-heading\">Tecnologia PSA: alta puresa per a processos exigents<\/h3>\n\n<p>PSA s\u00f3n les sigles de <em>Pressure Swing Adsorption<\/em> o adsorci\u00f3 per oscil\u00b7laci\u00f3 de pressi\u00f3. \u00c9s la tecnologia de refer\u00e8ncia per assolir <strong>pureses de fins al 99,999 %<\/strong> i la m\u00e9s utilitzada en entorns industrials que demanen nitrogen d\u2019alta qualitat. <\/p>\n\n<p>El funcionament es basa en l\u2019\u00fas de <strong> tamisos moleculars de carboni (CMS)<\/strong>, un material amb una estructura porosa que adsorbeix selectivament l\u2019oxigen quan l\u2019aire est\u00e0 sota pressi\u00f3, deixant passar el nitrogen. El proc\u00e9s treballa en cicle continu amb dues torres: <\/p>\n\n<ol class=\"wp-block-list\">\n<li><strong>Torre en adsorci\u00f3:<\/strong> l\u2019aire comprimit \u2014pr\u00e8viament filtrat per eliminar humitat, oli i part\u00edcules\u2014 travessa la torre. El CMS ret\u00e9 l\u2019oxigen i el nitrogen avan\u00e7a cap al dip\u00f2sit tamp\u00f3. <\/li>\n\n\n\n<li><strong>Torre en regeneraci\u00f3:<\/strong> simult\u00e0niament, la segona torre es despressuritza i es purga amb una petita fracci\u00f3 del nitrogen produ\u00eft, expulsant l\u2019oxigen adsorbit i quedant llesta per al seg\u00fcent cicle.<\/li>\n<\/ol>\n\n<p>Un analitzador d\u2019oxigen residual monitoritza en temps real la qualitat del gas. Si la puresa baixa del llindar configurat, el sistema desvia autom\u00e0ticament el flux fins a recuperar-la. A la nostra secci\u00f3 de <a href=\"https:\/\/nitromatic.com\/ca\/generadors-de-nitrogen\/generadors-de-nitrogen-psa\/\">generadors de nitrogen PSA<\/a> trobar\u00e0s els models disponibles segons cabal i puresa.  <\/p>\n\n<h3 class=\"wp-block-heading\">Tecnologia de membrana: senzillesa per a pureses mitjanes<\/h3>\n\n<p>Els generadors de membrana utilitzen fibres buides de pol\u00edmer per les quals circula l\u2019aire comprimit. L\u2019oxigen \u2014m\u00e9s permeable\u2014 es difon a trav\u00e9s de la paret de la fibra cap a l\u2019exterior, mentre que el nitrogen avan\u00e7a per l\u2019interior fins al punt de consum. <\/p>\n\n<p>El seu principal avantatge \u00e9s la simplicitat: sense parts m\u00f2bils, amb arrencada instant\u00e0nia i en un format molt compacte. El rang de puresa assolible \u00e9s de <strong>fins al 99,5 %<\/strong>, fet que la fa ideal per a aplicacions d\u2019inertitzaci\u00f3, conservaci\u00f3 d\u2019aliments o \u00fas en entorns amb espai redu\u00eft. Per a processos que exigeixen una puresa superior o cabals elevats, la tecnologia PSA resulta m\u00e9s eficient i econ\u00f2mica per metre c\u00fabic produ\u00eft.  <\/p>\n\n<h2 class=\"wp-block-heading\">Components principals d&#8217;un generador de nitrogen<\/h2>\n\n<p>Independentment de la tecnologia emprada, tots els generadors de nitrogen comparteixen una arquitectura similar:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Compressor d\u2019aire: <\/strong> subministra l\u2019aire a la pressi\u00f3 de treball necess\u00e0ria, generalment entre 5 i 10 bar. Pot estar integrat a l\u2019equip o ser un compressor de planta ja existent. <\/li>\n\n\n\n<li><strong>Sistema de pretractament: <\/strong> filtres coalescents, separadors d\u2019humitat i filtres de carb\u00f3 actiu que garanteixen un aire net i sec abans de la separaci\u00f3.<\/li>\n\n\n\n<li><strong>M\u00f2dul de separaci\u00f3: <\/strong> les torres d\u2019adsorci\u00f3 amb CMS (en PSA) o el m\u00f2dul de fibres buides (en membrana).<\/li>\n\n\n\n<li><strong>Dip\u00f2sit tamp\u00f3: <\/strong> emmagatzema el nitrogen produ\u00eft, amortitza els pics de demanda i mant\u00e9 una pressi\u00f3 estable a la xarxa de distribuci\u00f3.<\/li>\n\n\n\n<li><strong>Sistema de control i analitzador de puresa:<\/strong> el PLC gestiona el cicle de v\u00e0lvules i les alarmes, mentre que el sensor d\u2019O\u2082 residual certifica la qualitat del gas en tot moment.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Aplicacions industrials m\u00e9s comunes<\/h2>\n\n<p>El nitrogen generat in situ t\u00e9 pres\u00e8ncia a pr\u00e0cticament tots els sectors industrials:<\/p>\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>Sector<\/th><th>Aplicaci\u00f3<\/th><th>Puresa habitual<\/th><\/tr><\/thead><tbody><tr><td>Alimentaci\u00f3 i begudes<\/td><td>Envasat MAP, inerting de dip\u00f2sits, conservaci\u00f3 de vins<\/td><td>99 \u2013 99,9 %<\/td><\/tr><tr><td>Electr\u00f2nica<\/td><td>Soldadura SMD, reflow, fabricaci\u00f3 de PCB<\/td><td>99,9 \u2013 99,99 %<\/td><\/tr><tr><td>Farmac\u00e8utica i laboratori<\/td><td>Reactors, cromatografia, emmagatzematge de mostres<\/td><td>99,99 \u2013 99,999 %<\/td><\/tr><tr><td>Metal\u00b7l\u00fargia<\/td><td>Recuit, sinteritzaci\u00f3, tremp en atmosfera controlada<\/td><td>99 \u2013 99,99 %<\/td><\/tr><tr><td>Tall per l\u00e0ser<\/td><td>Gas d&#8217;assist\u00e8ncia i protecci\u00f3 del ressonador<\/td><td>99,99 %<\/td><\/tr><tr><td>Qu\u00edmica i petroqu\u00edmica<\/td><td>Inerting de canonades i reactors amb productes inflamables<\/td><td>99 \u2013 99,9 %<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\">Consum energ\u00e8tic i r\u00e0tio aire\/nitrogen<\/h2>\n\n<p>El par\u00e0metre clau per avaluar la viabilitat econ\u00f2mica d\u201fun generador \u00e9s la <strong>relaci\u00f3 aire\/nitrogen<\/strong>: quants metres c\u00fabics d\u201faire comprimit es necessiten per produir un metre c\u00fabic de nitrogen a la puresa desitjada. Com m\u00e9s puresa, m\u00e9s consum d&#8217;aire i, per tant, m\u00e9s cost energ\u00e8tic: <\/p>\n\n<ul class=\"wp-block-list\">\n<li>95% de puresa \u2192 r\u00e0tio \u2248 2,5:1<\/li>\n\n\n\n<li>99 % de puresa \u2192 r\u00e0tio \u2248 4:1<\/li>\n\n\n\n<li>99,9 % de puresa \u2192 r\u00e0tio \u2248 7:1<\/li>\n\n\n\n<li>99,99 % de puresa \u2192 r\u00e0tio \u2248 15:1 o superior<\/li>\n<\/ul>\n\n<p>Aquesta dada, combinada amb el cost del kWh i el preu actual del nitrogen extern, permet calcular amb precisi\u00f3 el retorn de la inversi\u00f3 per a cada instal\u00b7laci\u00f3.<\/p>\n\n<h2 class=\"wp-block-heading\">Instal\u00b7laci\u00f3 i manteniment<\/h2>\n\n<p>La instal\u00b7laci\u00f3 d\u2019un generador de nitrogen requereix aire comprimit net a la pressi\u00f3 de treball, un espai amb ventilaci\u00f3 adequada i la xarxa de distribuci\u00f3 cap als punts de consum. En la majoria dels casos es pot integrar amb el compressor de planta ja existent. <\/p>\n\n<p>El manteniment \u00e9s senzill i previsible: canvi de filtres de pretractament cada 4.000\u20138.000 hores, revisi\u00f3 peri\u00f2dica de les v\u00e0lvules de cicle i calibratge anual de l\u2019analitzador d\u2019oxigen. El tam\u00eds molecular de carboni t\u00e9 una vida \u00fatil de 5 a 10 anys. Amb un manteniment correcte, la vida \u00fatil de l\u2019equip supera f\u00e0cilment els <strong>15 anys. <\/strong>  <\/p>\n\n<h2 class=\"wp-block-heading\">Preguntes freq\u00fcents<\/h2>\n\n<div class=\"schema-faq wp-block-yoast-faq-block\"><div class=\"schema-faq-section\" id=\"faq-question-1772796957680\"><strong class=\"schema-faq-question\">Quina puresa de nitrogen necessito per a la meva aplicaci\u00f3?<br\/><\/strong> <p class=\"schema-faq-answer\">Dep\u00e8n directament del proc\u00e9s. Per a l\u2019envasat alimentari o la inertitzaci\u00f3 de dip\u00f2sits sol ser suficient un rang entre el 99 % i el 99,5 %. L\u2019electr\u00f2nica i la soldadura requereixen a partir del 99,9 %, i les aplicacions farmac\u00e8utiques o de semiconductors poden exigir fins al 99,999 %. Abans de seleccionar l\u2019equip, \u00e9s fonamental auditar el consum real i la puresa m\u00ednima exigida a cada punt d\u2019\u00fas per no sobredimensionar \u2014ni infradimensionar\u2014 la instal\u00b7laci\u00f3.   <\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772796968816\"><strong class=\"schema-faq-question\">PSA o membrana? Com s\u00e9 quin necessito? <\/strong> <p class=\"schema-faq-answer\">L\u2019elecci\u00f3 dep\u00e8n principalment de la puresa requerida i del cabal de consum. Si necessites una puresa superior al 99,5 % o un cabal elevat, la tecnologia PSA \u00e9s m\u00e9s eficient i rendible a llarg termini. Si la teva aplicaci\u00f3 admet pureses de fins al 99,5 %, el consum no \u00e9s gaire alt i valores la simplicitat d\u2019instal\u00b7laci\u00f3, la membrana pot ser l\u2019opci\u00f3 m\u00e9s adequada. En cas de dubte, el m\u00e9s recomanable \u00e9s realitzar una an\u00e0lisi del proc\u00e9s abans de decidir.   <\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772796977547\"><strong class=\"schema-faq-question\">Quin manteniment requereix un generador de nitrogen PSA?<\/strong> <p class=\"schema-faq-answer\">El manteniment \u00e9s m\u00ednim comparat amb altres tecnologies de gasos industrials. L\u2019essencial \u00e9s canviar els filtres de pretractament cada 4.000\u20138.000 hores de funcionament, revisar l\u2019estat de les v\u00e0lvules de cicle i calibrar l\u2019analitzador d\u2019oxigen residual un cop l\u2019any. El tam\u00eds molecular de carboni, si el pretractament \u00e9s correcte, pot durar entre 5 i 10 anys. Portar un registre de les hores d\u2019operaci\u00f3 i respectar els intervals de manteniment preventiu \u00e9s la millor garantia per maximitzar la vida \u00fatil de l\u2019equip.   <\/p> <\/div> <div class=\"schema-faq-section\" id=\"faq-question-1772796987208\"><strong class=\"schema-faq-question\">Quan compensa instal\u00b7lar un generador davant de comprar nitrogen en ampolles?<\/strong> <p class=\"schema-faq-answer\">En la majoria dels casos, la instal\u00b7laci\u00f3 s\u2019amortitza en <strong>1 a 3 anys<\/strong>. El punt d\u2019equilibri dep\u00e8n del consum mensual, del preu del nitrogen extern i dels costos de lloguer d\u2019envasos i log\u00edstica. Com a regla general, a partir de consums superiors a 20\u201330 m\u00b3\/mes la generaci\u00f3 in situ comen\u00e7a a ser m\u00e9s econ\u00f2mica. Si vols calcular el retorn per al teu cas concret, a <a href=\"https:\/\/nitromatic.com\/ca\/generadors-de-nitrogen\/\">Nitromatic <\/a> realitzem estudis de viabilitat personalitzats sense comprom\u00eds.   <\/p> <\/div> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Sabia que produir el seu propi nitrogen pot ser fins a un 80 % m\u00e9s econ\u00f2mic que comprar-lo? Descobreixi com funciona un generador de nitrogen PSA, des de la compressi\u00f3 de l\u2019aire fins a la separaci\u00f3 molecular, i per qu\u00e8 aquesta tecnologia \u00e9s la clau per a l\u2019autonomia i l\u2019estalvi a la seva planta industrial. <\/p>\n","protected":false},"author":4,"featured_media":3764,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21],"tags":[],"class_list":["post-4429","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-actualitat"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Com funciona un generador de nitrogen? | Nitromatic<\/title>\n<meta name=\"description\" content=\"Descobreixi com funciona un generador de nitrogen PSA in situ. 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","inLanguage":"ca"},"inLanguage":"ca"},{"@type":"Question","@id":"https:\/\/nitromatic.com\/ca\/com-funciona-un-generador-de-nitrogen\/#faq-question-1772796987208","position":4,"url":"https:\/\/nitromatic.com\/ca\/com-funciona-un-generador-de-nitrogen\/#faq-question-1772796987208","name":"Quan compensa instal\u00b7lar un generador davant de comprar nitrogen en ampolles?","answerCount":1,"acceptedAnswer":{"@type":"Answer","text":"En la majoria dels casos, la instal\u00b7laci\u00f3 s\u2019amortitza en <strong>1 a 3 anys<\/strong>. El punt d\u2019equilibri dep\u00e8n del consum mensual, del preu del nitrogen extern i dels costos de lloguer d\u2019envasos i log\u00edstica. Com a regla general, a partir de consums superiors a 20\u201330 m\u00b3\/mes la generaci\u00f3 in situ comen\u00e7a a ser m\u00e9s econ\u00f2mica. Si vols calcular el retorn per al teu cas concret, a <a href=\"https:\/\/nitromatic.com\/ca\/generadors-de-nitrogen\/\">Nitromatic <\/a> realitzem estudis de viabilitat personalitzats sense comprom\u00eds.   ","inLanguage":"ca"},"inLanguage":"ca"}]}},"_links":{"self":[{"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/posts\/4429","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/comments?post=4429"}],"version-history":[{"count":2,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/posts\/4429\/revisions"}],"predecessor-version":[{"id":4431,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/posts\/4429\/revisions\/4431"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/media\/3764"}],"wp:attachment":[{"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/media?parent=4429"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/categories?post=4429"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nitromatic.com\/ca\/wp-json\/wp\/v2\/tags?post=4429"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}