{"id":17230,"date":"2023-12-29T12:07:53","date_gmt":"2023-12-29T12:07:53","guid":{"rendered":"https:\/\/jhuesa.com\/?p=17230"},"modified":"2023-12-29T12:14:49","modified_gmt":"2023-12-29T12:14:49","slug":"supply-of-a-demineralized-water-plant-for-hydrogen-generation","status":"publish","type":"post","link":"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation","title":{"rendered":"Supply of a demineralized water plant for hydrogen generation"},"content":{"rendered":"<p>On this occasion, our client, a multinational technological leader in the execution of turnkey projects for<br \/>\nthe production of renewable hydrogen by means of electrolysers, needed to incorporate an ultrapure water<br \/>\nproduction system prior to the electrolysis process for the production of hydrogen.<\/p>\n<p>After analysing the conditions of the project and the specific needs of our client, the <span style=\"color: #0971ce;\"><strong>J. Huesa<\/strong><\/span> stechnical<br \/>\nteam opted for the design and manufacture of a tailor-made demineralised water treatment plant inside a 20 feet container.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_82_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Resumen de Contenidos<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation\/#Adopted_solution\" >Adopted solution<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation\/#Pretreatment\" >Pretreatment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation\/#Reverse_Osmosis\" >Reverse Osmosis<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation\/#EDI_System\" >EDI System<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation\/#CIPflushing_cleaning_system\" >CIP\/flushing cleaning system<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/jhuesa.com\/en\/supply-of-a-demineralized-water-plant-for-hydrogen-generation\/#Instrumentation_and_control\" >Instrumentation and control<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Adopted_solution\"><\/span>Adopted solution<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The main data of the system implemented, consisting of a reverse osmosis system plus EDI preceded<br \/>\nby the corresponding pre-treatment, are detailed below.<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"248\"><strong>Raw water input flow rate<\/strong><\/td>\n<td width=\"224\">0,89 m3<br \/>\n\/h<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>RO input flow rate<\/strong><\/td>\n<td width=\"224\">0,95 m3<br \/>\n\/h<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>RO production conversion<\/strong><\/td>\n<td width=\"224\">70%<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>RO production flow rate<\/strong><\/td>\n<td width=\"224\">0,67 m3<br \/>\n\/h<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>EDI input Flow rate<\/strong><\/td>\n<td width=\"224\">0,67 m3<br \/>\n\/h<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>EDI conversion <\/strong><\/td>\n<td width=\"224\">90%<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>Production flow rate<\/strong><\/td>\n<td width=\"224\">0,6 m3<br \/>\n\/d\u00eda<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>Working hours<\/strong><\/td>\n<td width=\"224\">24 h\/day<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>Used of treated water<\/strong><\/td>\n<td width=\"224\">Demi water for electrolyzer<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Table 1. Installation design data<\/p>\n<p>In compliance with the characteristics of ultrapure water, it must also comply with:<\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"248\"><strong>Conductivity<\/strong><\/td>\n<td width=\"224\">\u22640,1 \u00b5S\/cm<\/td>\n<\/tr>\n<tr>\n<td width=\"248\"><strong>TOC<\/strong><\/td>\n<td width=\"224\">\u2264 30 ppb<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The main components of the system are detailed below.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Pretreatment\"><\/span>Pretreatment<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The water from the mains is fed into a mesh filter consisting of a screen with a pore diameter of 25<br \/>\nmicrons, in which all suspended solids with a larger diameter are retained.<\/p>\n<p>The water then passes through an activated carbon filter with a nominal flow rate of 0.89 m\u00b3\/h in which<br \/>\nall organic contaminants are retained. This filter is equipped with an automatic chronometric valve that<br \/>\nperforms automatic filter cleaning.<\/p>\n<p>The filtered water is introduced into a decalcifier responsible for partially eliminating dissolved salts,<br \/>\nmainly calcium and magnesium, thanks to the action of a cationic resin contained in the bottles in order<br \/>\nto prevent these salts from precipitating in the osmosis system and causing incrustations in the<br \/>\nmembranes that would result in poor quality permeated water.<\/p>\n<p>The equipment installed has a &#8220;duplex&#8221; configuration, which allows one of the bottles to be regenerated while the other is automatically put into production, which increases the availability of the system.<\/p>\n<div id=\"attachment_17216\" style=\"width: 471px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17216\" class=\"wp-image-17216 size-full\" src=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-descalcificador-.jpg\" alt=\"sistema descalcificador \" width=\"461\" height=\"1000\" srcset=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-descalcificador-.jpg 461w, https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-descalcificador--138x300.jpg 138w\" sizes=\"auto, (max-width: 461px) 100vw, 461px\" \/><p id=\"caption-attachment-17216\" class=\"wp-caption-text\">Picture 1. Duplex water softening system<\/p><\/div>\n<p>The water is then accumulated in a tank with a capacity of one cubic metre from which it is pumped to<br \/>\nthe reverse osmosis.<\/p>\n<p>Prior to entering the reverse osmosis, a carbon dioxide elimination system has been contemplated, by<br \/>\nmeans of a NaOH dosing system. It is necessary to eliminate the CO2 present in the stream before the<br \/>\npermeate stream is introduced into the EDI system. To do this, the dosing of soda will convert the carbon dioxide present in the water into bicarbonate, which will be retained by the osmosis membranes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Reverse_Osmosis\"><\/span>Reverse Osmosis<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Reverse osmosis is a process by which water is demineralised by pushing it under pressure through a<br \/>\nsemi-permeable reverse osmosis membrane. A high-pressure pumping system is used to overcome<br \/>\nthe osmotic pressure, thus forcing the salt-free water through the membrane and leaving a high<br \/>\nconcentration of salts in the rejection flow. Osmosis membranes are characterised by high salt rejection<br \/>\nrates of around 95-99%.<\/p>\n<p>This natural pressure plus the net pressure necessary to obtain the production flow (which is called<br \/>\noperating pressure) is obtained by using a vertical high-pressure centrifugal pump in AISI 316 stainless<br \/>\nsteel with a nominal flow of 1.5 m3\/h.<\/p>\n<p>The system is equipped with spiral wound polyamide membranes specially designed for high salt<br \/>\nconcentration water up to 8000 ppm. specially designed for water with a high salt concentration of up<br \/>\nto 8000 ppm. These membranes have high chemical resistance, they can work in a pH range of 2-13,<br \/>\nwhich makes them very easy to wash and recover. This makes them very easy to wash and recover,<br \/>\nadmitting a variety of washing chemicals.<\/p>\n<p>They are mounted in pressure housings, made of coiled GRP.<\/p>\n<div id=\"attachment_17220\" style=\"width: 1290px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17220\" class=\"size-full wp-image-17220\" src=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-de-osmosis-inversa.jpg\" alt=\"sistema de osmosis inversa\" width=\"1280\" height=\"590\" srcset=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-de-osmosis-inversa.jpg 1280w, https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-de-osmosis-inversa-300x138.jpg 300w, https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-de-osmosis-inversa-1024x472.jpg 1024w, https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/sistema-de-osmosis-inversa-768x354.jpg 768w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><p id=\"caption-attachment-17220\" class=\"wp-caption-text\">Picture 2. Reverse Osmosis system<\/p><\/div>\n<p>The osmosis permeate is collected in an accumulation tank of 1000 litres capacity from where it is<br \/>\npumped to the EDI through a pump with a nominal flow rate of 0.8 m3\/h and ensures that the water<br \/>\nreaches the basin with the necessary pressure.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"EDI_System\"><\/span>EDI System<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The last step in the treatment line will be to subject the permeate water flow from the osmosis to an<br \/>\nelectrodeionisation process, in order to obtain ultrapure water that meets the necessary requirements<br \/>\nof the hydrogen production electrolyser equipment.<\/p>\n<p>EDI systems combine ion exchange with electrodialysis, achieving very high quality permeate. This is<br \/>\npossible thanks to the introduction of an exchange resin inside the compartments between the<br \/>\nmembranes of the electrodialysis cells which, when current is applied, generates flows that drag the<br \/>\ncations towards the cathode and the anions towards the anode, achieving flows of concentrated water<br \/>\nand a flow of deionised water.<\/p>\n<p>To reduce the consumption of mains water, the reject from the EDI is returned to the osmosis water<br \/>\nstorage tank.<\/p>\n<div id=\"attachment_17224\" style=\"width: 1010px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-17224\" class=\"wp-image-17224 size-full\" src=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/vista-pila-edi.jpg\" alt=\"vista pila edi \" width=\"1000\" height=\"961\" srcset=\"https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/vista-pila-edi.jpg 1000w, https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/vista-pila-edi-300x288.jpg 300w, https:\/\/jhuesa.com\/wp-content\/uploads\/2023\/12\/vista-pila-edi-768x738.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><p id=\"caption-attachment-17224\" class=\"wp-caption-text\">Picture 3. View EDI stack<\/p><\/div>\n<h2><span class=\"ez-toc-section\" id=\"CIPflushing_cleaning_system\"><\/span>CIP\/flushing cleaning system<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>To ensure the maintenance of the reverse osmosis membranes and the EDI basin, the plant is equipped<br \/>\nwith a 250-litre tank with a pump that drives the water for flushing both membranes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Instrumentation_and_control\"><\/span>Instrumentation and control<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The water treatment plant is equipped with instrumentation and control elements (automatic valves,<br \/>\npressure switches, pressure transmitters, flow meters, conductivity and pH meters&#8230;) which<br \/>\ncommunicate with the programmable logic controller, included in the control panel, through IO-Link<br \/>\ntechnology.<\/p>\n<p>The control panel also includes a touch screen for the operation and configuration of the plant. J.<br \/>\nHuesa&#8217;s Instrumentation and Control team has designed the control panel so that it can be integrated<br \/>\ninto the customer&#8217;s SCADA system. It also includes a remote control system.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>On this occasion, our client, a multinational technological leader in the execution of turnkey projects for the production of renewable hydrogen by means of electrolysers, needed to incorporate an ultrapure&#8230;<\/p>\n","protected":false},"author":5,"featured_media":17241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[456,455,113,458,117],"class_list":{"0":"post-17230","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-newss","8":"tag-edi-en","9":"tag-energy","10":"tag-filtration","11":"tag-hydrogen","12":"tag-reverse-osmosis"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.9 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Supply of a demineralized water plant for hydrogen generation - J. 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