{"id":3556,"date":"2025-11-10T08:00:00","date_gmt":"2025-11-10T08:00:00","guid":{"rendered":"https:\/\/nalonminerals.com\/?p=3556"},"modified":"2025-11-12T13:09:56","modified_gmt":"2025-11-12T13:09:56","slug":"desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides","status":"publish","type":"post","link":"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/","title":{"rendered":"Desulphurisation of biogas: innovation and efficiency in the use of iron hydroxides"},"content":{"rendered":"\n<p>Biogas desulphurisation is an essential stage in renewable energy production. This process removes hydrogen sulphide (H\u2082S), a highly corrosive and toxic gas that compromises the safety, efficiency and profitability of biogas plants. <br\/>Thanks to technological advances, it is now possible to achieve more effective, sustainable and economical desulphurisation through the use of <strong>iron hydroxides<\/strong>, materials that have become the technical standard of reference in the sector. <\/p>\n\n<p>At Nalon Minerals, we work to optimise the <a href=\"https:\/\/nalonminerals.com\/en\/biogas-desulphurisation\/\" title=\"\">removal of H\u2082S<\/a> in biogas with innovative solutions, such as our <a href=\"https:\/\/nalonminerals.com\/en\/n-bio-solutions\/\" title=\"\">N -Bio<\/a> medium, formulated with highly reactive iron hydroxides.<\/p>\n\n<div class=\"wp-block-aioseo-table-of-contents\"><ul><li><a href=\"#aioseo-como-actuan-los-hidroxidos-de-hierro-en-biogas\">Why is the desulphurisation of biogas key?<\/a><\/li><li><a href=\"#aioseo-ventajas-de-los-hidroxidos-de-hierro-frente-a-otros-metodos\">Current methods of biogas desulphurisation<\/a><ul><li><a href=\"#aioseo-1-alta-eficiencia-en-diferentes-condiciones\">1. Oxygen or air injection<\/a><\/li><li><a href=\"#aioseo-2-seguridad-operativa-garantizada\">2. Impregnated activated carbon<\/a><\/li><li><a href=\"#aioseo-3-facil-integracion-en-las-instalaciones\">3. Chemical or biological washers<\/a><\/li><li><a href=\"#aioseo-4-mantenimiento-sencillo-y-predecible\">4. Iron hydroxides<\/a><\/li><\/ul><\/li><li><a href=\"#aioseo-limitaciones-y-como-gestionarlas\">Biogas desulphurisation with iron hydroxides: how it works<\/a><\/li><li><a href=\"#aioseo-comparativa-con-otros-captadores-de-h%E2%82%82s\">Advantages of desulphurisation of biogas with hydroxides of iron<\/a><ul><li><a href=\"#aioseo-alta-eficiencia-operativa\">High operational efficiency<\/a><\/li><li><a href=\"#aioseo-seguridad-garantizada\">Guaranteed security<\/a><\/li><li><a href=\"#aioseo-integracion-sencilla\">Easy integration<\/a><\/li><li><a href=\"#aioseo-mantenimiento-minimo-y-predecible\">Predictable maintenance<\/a><\/li><li><a href=\"#aioseo-valorizacion-del-digestato\">Digestate recovery<\/a><\/li><\/ul><\/li><li><a href=\"#aioseo-conclusion-una-solucion-eficaz-y-segura\">Innovation at Nalon Minerals: the N-Bio medium<\/a><ul><li><a href=\"#aioseo-caracteristicas-clave-de-n-bio\">Key features of N-Bio<\/a><\/li><\/ul><\/li><li><a href=\"#aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\">Desulphurisation of biogas: efficiency and sustainability<\/a><\/li><li><a href=\"#aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\">Iron hydroxides versus other methods of biogas desulphurisation<\/a><\/li><li><a href=\"#aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\">Biogas desulphurisation with iron hydroxides, a safe bet<\/a><ul><\/ul><\/li><\/ul><\/div>\n<figure class=\"wp-block-post-featured-image\"><img loading=\"lazy\" decoding=\"async\" width=\"2560\" height=\"1515\" src=\"https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-scaled.jpg\" class=\"attachment-post-thumbnail size-post-thumbnail wp-post-image\" alt=\"Planta de biog\u00e1s en entorno rural equipada para la desulfuraci\u00f3n de biog\u00e1s y eliminaci\u00f3n de H\u2082S con hidr\u00f3xidos de hierro.\" style=\"object-fit:cover;\" srcset=\"https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-scaled.jpg 2560w, https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-1280x758.jpg 1280w, https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-980x580.jpg 980w, https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-480x284.jpg 480w\" sizes=\"(min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 2560px, 100vw\" \/><\/figure>\n<h2 class=\"wp-block-heading\" id=\"aioseo-como-actuan-los-hidroxidos-de-hierro-en-biogas\">Why is the desulphurisation of biogas key?<\/h2>\n\n<p>During anaerobic digestion, organic matter generates biogas, composed mainly of methane (CH\u2084) and carbon dioxide (CO\u2082). However, <g id=\"gid_3\">hydrogen sulphide (H\u2082S)<\/g> is also formed during the process. Although present in small proportions, this gas can have significant consequences:  <\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Severe corrosion of<\/strong> engines, pipes, valves and systems of combustion.<\/li>\n\n\n\n<li><strong>Safety risk<\/strong> due to toxicity and the generation of harmful compounds.<\/li>\n\n\n\n<li><strong>Reduced service life<\/strong> of power generation equipment.<\/li>\n\n\n\n<li><strong>Regulatory non-compliance<\/strong>, as H\u2082S must be reduced to levels below 250 ppm before upgrading to biomethane.<\/li>\n<\/ul>\n\n<p>For all these reasons, the <strong>desulphurisation of biogas<\/strong> is not optional, but rather an essential step to ensure safe energy production <strong>that is clean, safe and efficient.<\/strong><\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udca1 More information about this process on our page of <strong><a href=\"https:\/\/nalonminerals.com\/en\/biogas-desulphurisation\/\" title=\"\">Biogas desulphurisation page<\/a><\/strong>.<\/p>\n<\/blockquote>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-ventajas-de-los-hidroxidos-de-hierro-frente-a-otros-metodos\">Current methods of biogas desulphurisation<\/h2>\n\n<p>There are different technologies for removing H\u2082S from biogas. Each has advantages and limitations depending on operating conditions and gas purity objectives. <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-1-alta-eficiencia-en-diferentes-condiciones\">1. Oxygen or air injection<\/h3>\n\n<p>It consists of introducing <strong>oxygen (O\u2082)<\/strong> directly into the biogas or digester, oxidising the H\u2082S into elemental sulphur or sulphates. <br\/>Although it is a method with <strong>low initial cost<\/strong>, it presents <strong>ATEX risks<\/strong>, possible alterations in the biological activity of the digester and the need for <strong>continuous safety monitoring<\/strong>.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-2-seguridad-operativa-garantizada\">2. Impregnated activated carbon<\/h3>\n\n<p><strong>Activated carbon<\/strong> retains H\u2082S by adsorption. It performs well at low and stable concentrations, but <strong>replacement costs<\/strong> are high, and its disposal generates <strong>hazardous waste<\/strong>. <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-3-facil-integracion-en-las-instalaciones\">3. Chemical or biological washers<\/h3>\n\n<p>In these systems, the gas passes through a liquid solution that absorbs the H\u2082S. Although effective, they involve high maintenance, constant consumption of chemicals, and higher CAPEX. <\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-4-mantenimiento-sencillo-y-predecible\">4. Iron hydroxides<\/h3>\n\n<p>Iron hydroxides react directly with H\u2082S to form iron sulphide (FeS), eliminating the contaminant in a stable manner without the need to add oxygen. <br\/>This method has gained prominence due to its <strong>efficiency, safety and operational simplicity<\/strong>, becoming the preferred solution in biogas plants of all sizes.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-limitaciones-y-como-gestionarlas\">Biogas desulphurisation with iron hydroxides: how it works<\/h2>\n\n<p>The chemical principle behind iron hydroxides is simple and effective. When H\u2082S comes into contact with the medium, it reacts according to the following equation:<\/p>\n\n<p><strong>Fe(OH)\u2083 + 3H\u2082S \u2192 2FeS + S + 3H\u2082O<\/strong><\/p>\n\n<p>The result is a conversion of <strong>hydrogen sulphide<\/strong> into <strong>iron sulphide<\/strong>, a stable solid that can be removed or, in certain cases, integrated into the digestate without altering the balance of the process.<\/p>\n\n<p>This reaction occurs at ambient temperature, without additional energy consumption and without risk of combustion, which makes it a safe and sustainable alternative to other methods. a14&gt; compared to other methods.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-comparativa-con-otros-captadores-de-h&#x2082;s\"><strong>Advantages of desulphurisation of biogas with hydroxides of iron<\/strong><\/h2>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-alta-eficiencia-operativa\">High operational efficiency<\/h3>\n\n<p><strong>Iron hydroxides<\/strong> maintain consistent performance even with <strong>variations in biogas load or flow rate<\/strong>, achieving H\u2082S levels below regulatory limits.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-seguridad-garantizada\">Guaranteed security<\/h3>\n\n<p>Unlike systems that introduce oxygen, desulphurisation with iron <strong>does not generate explosive atmospheres <\/strong> nor does interfere with the biology of the digester.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-integracion-sencilla\">Easy integration<\/h3>\n\n<p>It can be applied by means of on-site dosing or in external beds, without the need to modify the existing infrastructure.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-mantenimiento-minimo-y-predecible\">Predictable maintenance<\/h3>\n\n<p>Control is limited to <strong>monitoring H\u2082S output<\/strong> and planning <strong>replacement of the reactive medium<\/strong>.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-valorizacion-del-digestato\">Digestate recovery<\/h3>\n\n<p>The by-product generated (FeS) can be integrated into the digestate, <strong>increasing its agronomic value<\/strong> thanks to the addition of iron and sulphur, essential nutrients for soils.<\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udd17 Discover more about the potential of the hydroxides of iron in <a href=\"https:\/\/nalonminerals.com\/en\/biogas-desulphurisation\/\"><strong>Desulphurisation of biogas<\/strong><\/a>.<\/p>\n<\/blockquote>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-conclusion-una-solucion-eficaz-y-segura\"><strong>Innovation at Nalon Minerals: the N-Bio medium<\/strong><\/h2>\n\n<p>At <strong>Nalon Minerals<\/strong> we have developed <strong>N-Bio<\/strong>, an advanced medium of <strong>iron hydroxides and oxides<\/strong> optimised for <strong>H\u2082S capture<\/strong> in biogas. Designed for both direct dosing into the digester and external bed systems, <strong>N-Bio<\/strong> combines <strong>reactive efficiency, low pressure drop and extended service life<\/strong>.<\/p>\n\n<h3 class=\"wp-block-heading\" id=\"aioseo-caracteristicas-clave-de-n-bio\"><strong>Key features of N-Bio<\/strong><\/h3>\n\n<ul class=\"wp-block-list\">\n<li>High capacity for adsorption of H\u2082S.<\/li>\n\n\n\n<li>Stable efficiency in the face of variations in flow or concentration.<\/li>\n\n\n\n<li>Simple maintenance and low OPEX.<\/li>\n\n\n\n<li>Possible partial regeneration by means of controlled aeration.<\/li>\n\n\n\n<li>Product solid, safe and easy to handle.<\/li>\n<\/ul>\n\n<p>Furthermore, its application improves the <strong>stability of the anaerobic process<\/strong>, acting as a <strong>buffering effect<\/strong> against H\u2082S peaks and helping to maintain optimal conditions in the reactor.<\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\ud83d\udcac <a href=\"https:\/\/nalonminerals.com\/en\/n-bio-solutions\/\" title=\"\">Would you like to find out how N-Bio can be adapted to your facility?<\/a><br\/><strong>Contact our team<\/strong> and request a personalised study on desulphurisation with iron hydroxides.<\/p>\n<\/blockquote>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\">Desulphurisation of biogas: efficiency and sustainability<\/h2>\n\n<p>One of the main challenges in biogas treatment is combining technical performance and environmental sustainability. Iron hydroxides meet both criteria:<\/p>\n\n<ul class=\"wp-block-list\">\n<li>They do not generate liquid waste or hazardous emissions.<\/li>\n\n\n\n<li>Its by-product (FeS) is stable and can be recovered.<\/li>\n\n\n\n<li>They do not require additional energy for their reaction.<\/li>\n\n\n\n<li>They reduce the use of harsh chemicals.<\/li>\n<\/ul>\n\n<p>As a result, its adoption in the sector is growing steadily, gradually replacing more expensive or high-risk technologies.<\/p>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\">Iron hydroxides versus other methods of biogas desulphurisation<\/h2>\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Criterion<\/th><th><a href=\"https:\/\/nalonminerals.com\/en\/n-bio-solutions\/\" title=\"\">Iron hydroxides<br\/>(N-Bio)<\/a><\/th><th>Oxygen injection<\/th><th>Activated carbon<\/th><\/tr><\/thead><tbody><tr><td><strong>H\u2082S efficiency<\/strong><\/td><td>High and stable at different flow rates<\/td><td>Variable<\/td><td>Good, but sensitive to humidity.<\/td><\/tr><tr><td><strong>Safety<\/strong><\/td><td>ATEX risk-free<\/td><td>Risk of combustion<\/td><td>Safe<\/td><\/tr><tr><td><strong>Operational complexity<\/strong><\/td><td>Low<\/td><td>High<\/td><td>Medium<\/td><\/tr><tr><td><strong>Operating cost (OPEX)<\/strong><\/td><td>Low and predictable<\/td><td>Low reagent, high monitoring<\/td><td>High (frequent replacement)<\/td><\/tr><tr><td><strong>Waste management<\/strong><\/td><td>Stable, manageable FeS<\/td><td>Elemental sulphur or sulphates<\/td><td>Hazardous waste<\/td><\/tr><tr><td><strong>Sustainability<\/strong><\/td><td>High<\/td><td>Medium<\/td><td>Low<\/td><\/tr><\/tbody><\/table><\/figure>\n\n<h2 class=\"wp-block-heading\" id=\"aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\">Biogas desulphurisation with iron hydroxides, a safe bet<\/h2>\n\n<p>The <strong>desulphurisation of biogas<\/strong> using <strong>iron hydroxides<\/strong> has established itself as the most balanced option in terms of <strong>technical efficiency, operational safety and environmental sustainability<\/strong>. <br\/>At <strong>Nalon Minerals<\/strong>, we promote this technology through <strong>N-Bio<\/strong>, a high-performance medium designed to guarantee stable results, low costs and a positive impact on the circular economy.<\/p>\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>If you are looking for a reliable solution for <strong>biogas desulphurisation<\/strong>, discover the advantages of working with Nalon Minerals. Visit our page on <br\/><a href=\"https:\/\/nalonminerals.com\/en\/biogas-desulphurisation\/\">Biogas desulphurisation<\/a> or <a href=\"https:\/\/nalonminerals.com\/en\/n-bio-solutions\/\" title=\"\"><strong>request information on the use of N-Bio<\/strong> tailored to your plant<\/a>.<\/p>\n<\/blockquote>\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n<h4 class=\"wp-block-heading\" id=\"aioseo-preguntas-frecuentes-acerca-de-los-hidroxidos-de-hierro\"><strong>Frequently asked questions about biogas desulphurisation<\/strong><\/h4>\n\n<div data-schema-only=\"false\" class=\"wp-block-aioseo-faq\" id=\"aioseo-que-es-la-desulfuracion-de-biogas-y-por-que-es-necesaria\"><h3 class=\"aioseo-faq-block-question\">\u00bfQu\u00e9 es la desulfuraci\u00f3n de biog\u00e1s y por qu\u00e9 es necesaria?<\/h3><div class=\"aioseo-faq-block-answer\">\n<p>Biogas desulphurisation removes H\u2082S, a toxic and corrosive gas that damages equipment and reduces fuel quality. It is essential for producing high-purity biomethane and complying with environmental regulations. <\/p>\n<\/div><\/div>\n\n<div data-schema-only=\"false\" class=\"wp-block-aioseo-faq\" id=\"aioseo-que-es-la-desulfuracion-de-biogas-y-por-que-es-necesaria\"><h3 class=\"aioseo-faq-block-question\">\u00bfQu\u00e9 ventajas ofrece la desulfuraci\u00f3n con hidr\u00f3xidos de hierro frente a otros m\u00e9todos?<\/h3><div class=\"aioseo-faq-block-answer\">\n<p>Provides <strong>greater security<\/strong>, <strong>efficiency constant<\/strong> and <strong>low cost operating<\/strong>, without introducing oxygen or generating hazardous waste.<\/p>\n<\/div><\/div>\n\n<div data-schema-only=\"false\" class=\"wp-block-aioseo-faq\" id=\"aioseo-que-es-la-desulfuracion-de-biogas-y-por-que-es-necesaria\"><h3 class=\"aioseo-faq-block-question\">\u00bfQu\u00e9 mantenimiento requiere un sistema de desulfuraci\u00f3n de biog\u00e1s con hidr\u00f3xidos de hierro?<\/h3><div class=\"aioseo-faq-block-answer\">\n<p>It is only necessary to <strong>monitor the output of H\u2082S and <strong>replace the reactive medium <\/strong> in a planned manner . It is a predictable system with low maintenance.<\/strong> <\/p>\n<\/div><\/div>\n\n<div data-schema-only=\"false\" class=\"wp-block-aioseo-faq\" id=\"aioseo-que-es-la-desulfuracion-de-biogas-y-por-que-es-necesaria\"><h3 class=\"aioseo-faq-block-question\">\u00bfD\u00f3nde puedo obtener asesoramiento t\u00e9cnico sobre desulfuraci\u00f3n de biog\u00e1s?<\/h3><div class=\"aioseo-faq-block-answer\">\n<p>At <strong>Nalon Minerals<\/strong>, our specialists can help you <strong>size and optimise your system<\/strong>.<br\/>See our <a href=\"https:\/\/nalonminerals.com\/en\/biogas-desulphurisation\/\"><strong>Biogas Desulphurisation<\/strong><\/a> page for more information.<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Biogas desulphurisation is an essential stage in renewable energy production. This process removes hydrogen sulphide (H\u2082S), a highly corrosive and toxic gas that compromises the safety, efficiency and profitability of biogas plants.<br \/>\nThanks to technological advances, it is now possible to achieve more effective, sustainable and economical desulphurisation through the use of iron hydroxides, materials that have become the technical standard of reference in the sector. <\/p>\n","protected":false},"author":1,"featured_media":3482,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"","_et_gb_content_width":"","om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[152],"tags":[],"class_list":["post-3556","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Desulphurisation of biogas: innovation and efficiency in the use of iron hydroxides - Nal\u00f3n Minerals<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Desulphurisation of biogas: innovation and efficiency in the use of iron hydroxides - Nal\u00f3n Minerals\" \/>\n<meta property=\"og:description\" content=\"Biogas desulphurisation is an essential stage in renewable energy production. This process removes hydrogen sulphide (H\u2082S), a highly corrosive and toxic gas that compromises the safety, efficiency and profitability of biogas plants. Thanks to technological advances, it is now possible to achieve more effective, sustainable and economical desulphurisation through the use of iron hydroxides, materials that have become the technical standard of reference in the sector.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/\" \/>\n<meta property=\"og:site_name\" content=\"Nal\u00f3n Minerals\" \/>\n<meta property=\"article:published_time\" content=\"2025-11-10T08:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-12T13:09:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-scaled.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"2560\" \/>\n\t<meta property=\"og:image:height\" content=\"1515\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"AdmiNoko\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"AdmiNoko\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/\"},\"author\":{\"name\":\"AdmiNoko\",\"@id\":\"https:\/\/nalonminerals.com\/en\/#\/schema\/person\/5c453c1634cd733da4379081006b3fb9\"},\"headline\":\"Desulphurisation of biogas: innovation and efficiency in the use of iron hydroxides\",\"datePublished\":\"2025-11-10T08:00:00+00:00\",\"dateModified\":\"2025-11-12T13:09:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/\"},\"wordCount\":1315,\"image\":{\"@id\":\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/nalonminerals.com\/wp-content\/uploads\/2025\/09\/planta-de-biogas-para-la-generacion-de-energia-scaled.jpg\",\"articleSection\":[\"News\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/\",\"url\":\"https:\/\/nalonminerals.com\/en\/desulphurisation-of-biogas-innovation-and-efficiency-in-the-use-of-iron-hydroxides\/\",\"name\":\"Desulphurisation of biogas: innovation and efficiency in the use of iron hydroxides - 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