{"id":805,"count":3,"description":"<!-- wp:kadence\/tableofcontents {\"uniqueID\":\"_3e1a85-40\"} \/-->\r\n\r\n<!-- wp:generateblocks\/button-container {\"uniqueId\":\"31f123f4\",\"isDynamic\":true,\"blockVersion\":2} -->\r\n<!-- wp:generateblocks\/button {\"uniqueId\":\"504ddfe8\",\"hasUrl\":true,\"target\":true,\"backgroundColor\":\"#0366d6\",\"textColor\":\"#ffffff\",\"backgroundColorHover\":\"#222222\",\"textColorHover\":\"#ffffff\",\"paddingTop\":\"15\",\"paddingRight\":\"20\",\"paddingBottom\":\"15\",\"paddingLeft\":\"20\"} -->\r\n<a class=\"gb-button gb-button-504ddfe8 gb-button-text\" href=\"mailto:commercial@zecovalve.com\" target=\"_blank\" rel=\"noopener noreferrer\"><strong><strong>OBTENIR LE PRIX DE LA VANNE D&#039;AMMONIAC<\/strong><\/strong><\/a>\r\n<!-- \/wp:generateblocks\/button -->\r\n<!-- \/wp:generateblocks\/button-container -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Aper\u00e7u du processus d\u2019ammoniac<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLa synth\u00e8se d&#039;ammoniac est utilis\u00e9e pour produire de l&#039;ammoniac \u00e0 partir d&#039;azote et d&#039;hydrog\u00e8ne. L\u2019ammoniac produit peut ensuite \u00eatre utilis\u00e9 comme engrais ou \u00eatre transform\u00e9 en ur\u00e9e ou en acide nitrique. Un m\u00e9lange d&#039;hydrog\u00e8ne et d&#039;azote, provenant g\u00e9n\u00e9ralement d&#039;un reformeur \u00e0 vapeur, est admis dans la boucle de synth\u00e8se puis comprim\u00e9 en deux \u00e9tapes \u00e0 la pression de synth\u00e8se de 150 \u00e0 300 bars (2 200 \u00e0 4 400 psi). Le flux est pr\u00e9chauff\u00e9 par \u00e9change thermique avec l&#039;effluent chaud sortant du convertisseur avant d&#039;entrer dans le convertisseur d&#039;ammoniac.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLe processus de conversion de l&#039;ammoniac est un compromis entre temp\u00e9rature et pression. Pour que le catalyseur soit efficace, une temp\u00e9rature d&#039;au moins 400 \u00b0C (750 \u00b0F) est n\u00e9cessaire,\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nmais comme la r\u00e9action est exothermique, une temp\u00e9rature plus \u00e9lev\u00e9e affecte n\u00e9gativement le rendement du produit. Pour r\u00e9soudre ce probl\u00e8me, la pression est augment\u00e9e pour pousser l\u2019\u00e9quilibre de la r\u00e9action vers l\u2019ammoniac (augmentant ainsi le rendement du produit). La chaleur est r\u00e9cup\u00e9r\u00e9e de l&#039;effluent en g\u00e9n\u00e9rant de la vapeur et en pr\u00e9chauffant la charge entrante. L&#039;effluent est ensuite envoy\u00e9 au r\u00e9frig\u00e9rateur avant que le produit ne soit s\u00e9par\u00e9 du milieu et le gaz n&#039;ayant pas r\u00e9agi est recycl\u00e9 vers le d\u00e9but de la boucle de synth\u00e8se.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:image {\"align\":\"center\",\"id\":27329,\"sizeSlug\":\"full\",\"linkDestination\":\"none\"} -->\r\n<figure class=\"wp-block-image aligncenter size-full\"><img class=\"wp-image-27329\" src=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/11\/ammonia-process.png\" alt=\"\" \/><\/figure>\r\n<!-- \/wp:image -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Types de vannes dans la boucle de synth\u00e8se d&#039;ammoniac<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLe r\u00f4le des vannes de la boucle de synth\u00e8se de l&#039;ammoniac est de contr\u00f4ler le d\u00e9bit de gaz de synth\u00e8se dans le convertisseur et d&#039;assurer le recyclage du gaz de synth\u00e8se n&#039;ayant pas r\u00e9agi.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Soupape d&#039;entr\u00e9e du convertisseur<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCette vanne permet de r\u00e9gler le d\u00e9bit de gaz de synth\u00e8se dans le convertisseur. Le d\u00e9bit devra peut-\u00eatre \u00eatre ajust\u00e9 pour faire face aux fluctuations de temp\u00e9rature dans le convertisseur.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Vanne de sortie du convertisseur<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCette vanne est situ\u00e9e apr\u00e8s le r\u00e9acteur et permet de r\u00e9guler le d\u00e9bit d&#039;effluent vers la chaudi\u00e8re.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading {\"level\":3} -->\r\n<h3>Vanne de d\u00e9rivation de chaudi\u00e8re<\/h3>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nCette vanne permet de contr\u00f4ler le d\u00e9bit d&#039;effluent du r\u00e9acteur qui contourne la chaudi\u00e8re, permettant de contr\u00f4ler le niveau de pr\u00e9chauffage par l&#039;\u00e9changeur de gaz de synth\u00e8se.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Utilisations et conditions de fonctionnement de l&#039;ammoniac<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nL&#039;ammoniac est un gaz incolore compos\u00e9 d&#039;azote et d&#039;hydrog\u00e8ne (NH3). Dans des conditions atmosph\u00e9riques, il est plus l\u00e9ger que l&#039;air et d\u00e9gage une odeur \u00e2cre. C&#039;est un irritant hautement caustique, \u00e0 la fois toxique et inflammable. En raison de son faible point d\u2019\u00e9bullition, sous forme liquide, il doit \u00eatre stock\u00e9 sous pression ou \u00e0 basse temp\u00e9rature. L&#039;ammoniac industriel est vendu soit sous forme de liqueur ammoniacale, soit sous forme d&#039;ammoniac liquide anhydre sous pression ou r\u00e9frig\u00e9r\u00e9 transport\u00e9 dans des wagons-citernes ou des cylindres. L&#039;ammoniac domestique ou hydroxyde d&#039;ammonium est une solution de NH3 dans l&#039;eau. La majeure partie de l&#039;ammoniac est consomm\u00e9e dans la fabrication d&#039;engrais. C&#039;est \u00e9galement un \u00e9l\u00e9ment de base pour la synth\u00e8se de nombreux produits pharmaceutiques et est utilis\u00e9 dans de nombreux produits de nettoyage commerciaux.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2 id=\"h-ammonia-service-ball-valves\">Robinets \u00e0 tournant sph\u00e9rique de service d&#039;ammoniac<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nLes vannes d&#039;ammoniac sont con\u00e7ues pour \u00eatre performantes et fiables dans les processus industriels les plus dangereux tels que les applications s\u00e9v\u00e8res d&#039;ammoniac. Ces vannes sont disponibles dans un type \u00ab\u00a0flottant\u00a0\u00bb avec deux configurations de corps de base\u00a0: corps divis\u00e9 en orifice complet et standard et unibody en orifice standard uniquement.\r\n\r\n<!-- \/wp:paragraph -->\r\n\r\n<!-- wp:heading -->\r\n<h2>Nettoyage et tests<\/h2>\r\n<!-- \/wp:heading -->\r\n\r\n<!-- wp:paragraph -->\r\n\r\nTous les composants utilis\u00e9s pour le service de l&#039;ammoniac, \u00e0 l&#039;\u00e9tat gazeux ou liquide, sont sp\u00e9cifiquement nettoy\u00e9s pour \u00e9liminer toute trace d&#039;huile, de graisse ou d&#039;hydrocarbures avant l&#039;assemblage de la vanne. Les vannes pour le service d&#039;ammoniac sont assembl\u00e9es dans une zone restreinte sans huile par du personnel sp\u00e9cialement \u00e9quip\u00e9 et form\u00e9 pour effectuer cette t\u00e2che. La zone d&#039;assemblage, le travail, les surfaces, l&#039;\u00e9quipement et les outils sont sp\u00e9cialement entretenus pour garantir le respect des exigences de propret\u00e9.\r\n\r\n<!-- \/wp:paragraph -->","link":"https:\/\/zecovalve.com\/fr\/tag\/ammonia","name":"Vanne ammoniac","slug":"ammonia","taxonomy":"post_tag","meta":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v15.4 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ammonia Valve - Ammonia Motorized Valve &amp; Ammonia Globe Valve | ZECO<\/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:\/\/zecovalve.com\/fr\/tag\/ammonia\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ammonia Valve - Ammonia Motorized Valve &amp; Ammonia Globe Valve | ZECO\" \/>\n<meta property=\"og:description\" content=\"GET AMMONIA VALVE PRICE  Ammonia Process Overview  Ammonia synthesis is used to produce ammonia from nitrogen and hydrogen. The produced ammonia can then be used as a fertilizer, or it can be further processed into urea or nitric acid. A mixture of hydrogen and nitrogen, usually originating from a steam reformer, is admitted to the synthesis loop and then compressed in two stages into the synthesis pressure of 150-300 bar (2200-4400 psi). The stream is preheated by heat exchange with the hot effluent coming out of the converter before entering the ammonia converter.  The ammonia conversion process is a compromise between temperature and pressure. For the catalyst to be efficient a temperature of at least 400 \u00b0C (750 \u00b0F) is needed,  but since the reaction is exothermic a higher temperature negatively affects product yield. To counter this issue, the pressure is increased to push the reaction equilibrium toward ammonia (thus increasing product yield). Heat is recovered from the effluent by generating steam and by pre-heating the incoming feed. The effluent is then sent to refrigeration before the product is separated from the medium and unreacted gas is recycled to the start of the synthesis loop.   Types of Valves in Ammonia Synthesis Loop  The role of valves in the ammonia synthesis loop is to control the flow of synthesis gas into the converter and to ensure the recycling of the unreacted synthesis gas.  Converter inlet valve  This valve is used to adjust the flow of synthesis gas into the converter. The flow may need to be adjusted to cope with temperature fluctuations in the converter.  Converter outlet valve  This valve is located after the reactor and is used to regulate the flow of effluent to the boiler.  Boiler bypass valve  This valve is used to control the flow of reactor effluent that bypasses the boiler, allowing the amount of pre-heating by the synthesis gas heat exchanger to be controlled.  Ammonia Uses &amp; Operating Conditions  Ammonia is a colorless gas that consists of nitrogen and hydrogen (NH3). At atmospheric conditions, it is lighter than air with a pungent odor. It is a highly caustic irritant that is both toxic and flammable. Because of its low boiling point, as a liquid, it must be stored under pressure or at a low temperature. Industrial ammonia is sold either as ammonia liquor or as pressurized or refrigerated anhydrous liquid ammonia transported in tank cars or cylinders. Household ammonia or ammonium hydroxide is a solution of NH3 in water. Most ammonia is consumed in the manufacturing of fertilizer. It is also a building block for the synthesis of many pharmaceutical products and is used in many commercial cleaning products.  Ammonia Service Ball Valves  Ammonia valves are engineered for performance and reliability in the most hazardous industrial processes such as severe ammonia applications. These valves are available in a \u201cfloating\u201d type with two basic body configurations \u2013 split body in full and standard port and a unibody in standard port only.  Cleaning &amp; Testing  All components used for ammonia service, in a gaseous or liquid state, are specifically cleaned to remove any traces of oil, grease, or hydrocarbon materials prior to the valve assembly. Valves for ammonia service are assembled in an oil-free restricted area by personnel who are specially equipped and trained to perform this task. The assembling area, work, surfaces, equipment, and tools are specially maintained to ensure cleanliness requirements are met.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/fr\/tag\/ammonia\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/11\/ammonia-process.png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zecovalve.com\/#website\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"ZECO Valve\",\"description\":\"Industrial Ball Valve, Gate Valve and Globe Valve Manufacturer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/zecovalve.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"fr-FR\"},{\"@type\":\"CollectionPage\",\"@id\":\"https:\/\/zecovalve.com\/tag\/ammonia#webpage\",\"url\":\"https:\/\/zecovalve.com\/tag\/ammonia\",\"name\":\"Ammonia Valve - Ammonia Motorized Valve & Ammonia Globe Valve | ZECO\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/tag\/ammonia#breadcrumb\"},\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/tag\/ammonia\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/tag\/ammonia#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/tag\/ammonia\",\"url\":\"https:\/\/zecovalve.com\/tag\/ammonia\",\"name\":\"Ammonia Valve\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags\/805","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/tags"}],"about":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/taxonomies\/post_tag"}],"wp:post_type":[{"href":"https:\/\/zecovalve.com\/fr\/wp-json\/wp\/v2\/posts?tags=805"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}