{"id":6676,"date":"2026-04-14T10:34:47","date_gmt":"2026-04-14T03:34:47","guid":{"rendered":"https:\/\/www.lautanairindonesia.com\/?p=6676"},"modified":"2026-04-21T13:34:21","modified_gmt":"2026-04-21T06:34:21","slug":"deaeration-in-boilers","status":"publish","type":"post","link":"https:\/\/www.lautanairindonesia.com\/id\/publication\/deaeration-in-boilers\/","title":{"rendered":"Deaeration pada Boiler: Tujuan, Jenis, dan Masalah Umum"},"content":{"rendered":"<p>Deaeration pada boiler merupakan salah satu proses paling krusial dalam menjaga efisiensi sistem dan mencegah kerusakan jangka panjang. Tanpa deaeration yang optimal, gas terlarut seperti oksigen dan karbon dioksida akan tetap berada di dalam feedwater, yang dapat menyebabkan korosi, penurunan heat transfer, hingga kerusakan equipment yang mahal. Dalam banyak operasional industri, masalah ini tidak langsung terlihat. Namun ketika sudah terjadi, dampaknya sering kali sulit dan mahal untuk diperbaiki.<\/p>\n\n\n\n<p>Karena itu, memahami cara kerja deaeration, memilih sistem yang tepat, serta mengetahui cara menangani masalah yang umum terjadi menjadi hal yang sangat penting untuk menjaga operasional boiler tetap stabil dan efisien.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Tujuan Deaeration pada Boiler<\/h2>\n\n\n\n<p>Tujuan utama dari deaeration pada boiler adalah menghilangkan gas terlarut, terutama oksigen dan karbon dioksida, dari boiler feedwater sebelum masuk ke dalam sistem.<\/p>\n\n\n\n<p>Oksigen bersifat sangat reaktif dan dapat menyebabkan pitting corrosion bahkan dalam konsentrasi yang sangat kecil. Sementara itu, karbon dioksida akan larut dalam air dan membentuk carbonic acid, yang menurunkan pH dan mempercepat korosi pada jalur condensate return. Jika gas-gas ini tidak dihilangkan dengan baik, maka akan terus menyerang permukaan logam dan memperpendek umur peralatan.<\/p>\n\n\n\n<p>Dengan penerapan deaeration yang efektif, industri dapat:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Mencegah korosi pada boiler dan sistem perpipaan<\/li>\n\n\n\n<li>Menjaga efisiensi heat transfer<\/li>\n\n\n\n<li>Mengurangi konsumsi chemical<\/li>\n\n\n\n<li>Memperpanjang umur equipment<\/li>\n\n\n\n<li>Menjaga operasional lebih stabil dan andal<\/li>\n<\/ul>\n\n\n\n<p>Dalam praktiknya, deaeration bukan hanya langkah proteksi, tetapi juga faktor penting dalam mengendalikan biaya operasional.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Jenis Deaerator pada Sistem Boiler<\/h2>\n\n\n\n<p>Untuk mencapai deaeration yang efektif, desain sistem harus disesuaikan dengan kebutuhan operasional. Secara umum, terdapat dua jenis deaerator yang paling sering digunakan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Tray Type Deaerator<\/h3>\n\n\n\n<p>Tray type deaerator menggunakan beberapa tray berlubang untuk memaksimalkan kontak antara steam dan air. Feedwater mengalir turun melewati tray, sementara steam naik dari bawah, memanaskan air hingga mencapai suhu saturasi dan melepaskan gas terlarut.<\/p>\n\n\n\n<p>Jenis ini banyak digunakan pada sistem boiler skala menengah hingga besar karena performanya stabil dan efisien, terutama saat terjadi perubahan beban. Agar tetap optimal, tray harus dijaga tetap bersih dari fouling karena deposit dapat mengurangi efektivitas kontak.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Spray Type Deaerator<\/h3>\n\n\n\n<p>Spray type deaerator bekerja dengan menyemprotkan air menjadi butiran halus menggunakan nozzle. Hal ini meningkatkan luas permukaan sehingga proses pemanasan dan pelepasan gas berlangsung lebih cepat saat kontak dengan steam.<\/p>\n\n\n\n<p>Sistem ini lebih compact dan cocok untuk aplikasi dengan keterbatasan ruang atau kapasitas lebih kecil. Namun, performanya sangat bergantung pada kondisi nozzle, sehingga inspeksi rutin diperlukan untuk memastikan distribusi semprotan tetap merata.<\/p>\n\n\n\n<p><strong>Baca Juga: <a href=\"https:\/\/www.lautanairindonesia.com\/id\/publication\/condensate-treatment\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pentingnya Condensate Treatment untuk Operasi Boiler yang Andal<\/a><\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Masalah Umum pada Deaeration di Boiler<\/h2>\n\n\n\n<p>Dalam operasional sehari-hari, masalah pada deaeration di boiler biasanya muncul dalam bentuk gejala kecil. Namun jika tidak segera ditangani, dampaknya bisa meluas ke seluruh sistem.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Oksigen Masih Terdeteksi di Feedwater<\/h3>\n\n\n\n<p>Salah satu masalah paling umum adalah masih ditemukannya oksigen di dalam feedwater setelah proses deaeration. Hal ini biasanya terjadi karena suhu tidak mencapai kondisi saturasi, suplai steam tidak stabil, atau sistem venting tidak bekerja dengan baik dalam melepaskan gas.&nbsp;<\/p>\n\n\n\n<p>Untuk mengatasinya, operator perlu memastikan deaerator bekerja pada suhu yang tepat, didukung oleh suplai steam yang stabil, serta pengaturan vent yang cukup untuk membuang non condensable gases tanpa hambatan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Korosi Masih Terjadi<\/h3>\n\n\n\n<p>Jika korosi masih muncul pada pipa atau bagian boiler, ini menjadi indikasi bahwa proses deaeration belum berjalan optimal. Kondisi ini umumnya disebabkan oleh masih adanya oksigen tersisa yang tidak ditangani dengan chemical treatment yang tepat.&nbsp;<\/p>\n\n\n\n<p>Solusinya adalah meningkatkan performa deaeration sekaligus mengaplikasikan oxygen scavenger yang sesuai, sehingga sisa oksigen dapat dihilangkan sebelum menimbulkan kerusakan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Kehilangan Steam dari Vent Terlalu Tinggi<\/h3>\n\n\n\n<p>Steam yang keluar berlebihan dari vent deaerator sering dianggap normal, padahal hal ini menunjukkan inefisiensi. Biasanya terjadi karena bukaan vent terlalu besar, sehingga banyak steam terbuang tanpa meningkatkan efektivitas penghilangan gas.&nbsp;<\/p>\n\n\n\n<p>Penanganannya adalah dengan mengatur vent secara optimal, sehingga tetap mampu membuang gas dengan efektif tanpa menyebabkan kehilangan energi yang berlebihan.<\/p>\n\n\n\n<p><strong>Baca Juga: <a href=\"https:\/\/www.lautanairindonesia.com\/id\/publication\/boiler-water-treatment\/\" target=\"_blank\" rel=\"noreferrer noopener\">Pengolahan Air Boiler: Mengapa Penting dan Langkah-Langkah Utama untuk Memprosesnya<\/a><\/strong><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">4. Suhu Deaerator Tidak Stabil<\/h3>\n\n\n\n<p>Suhu deaerator yang naik turun dapat menurunkan efektivitas penghilangan gas secara signifikan. Hal ini biasanya disebabkan oleh fluktuasi tekanan steam atau sistem kontrol yang tidak mampu menjaga kondisi tetap stabil.&nbsp;<\/p>\n\n\n\n<p>Untuk mengatasinya, perlu dilakukan stabilisasi suplai steam serta memastikan control valve dan instrumen bekerja dengan baik, sehingga suhu dapat dijaga konsisten pada kondisi yang dibutuhkan.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5. Deaerator Cepat Kotor<\/h3>\n\n\n\n<p>Jika tray atau nozzle sering kotor atau tersumbat, penyebab utamanya biasanya berasal dari kualitas air yang kurang baik. Suspended solids atau hardness yang tidak tertangani dari proses upstream akan menumpuk di dalam deaerator dan menurunkan performa.&nbsp;<\/p>\n\n\n\n<p>Cara terbaik untuk mengatasi hal ini adalah dengan meningkatkan kualitas pre-treatment seperti filtrasi atau softening, serta melakukan pembersihan secara rutin agar deaerator tetap bekerja optimal.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Optimasi Deaeration dengan Dukungan yang Tepat<\/h2>\n\n\n\n<p>Deaeration pada boiler tidak hanya bergantung pada equipment, tetapi juga pada bagaimana sistem tersebut dioperasikan dan didukung. Performa mekanis, chemical treatment, dan kontrol operasional harus berjalan secara terintegrasi untuk menghasilkan hasil yang konsisten.<\/p>\n\n\n\n<p>Dalam banyak kasus, masalah seperti korosi, suhu tidak stabil, atau tingginya kadar oksigen bukan disebabkan oleh satu faktor saja, melainkan kombinasi dari beberapa celah dalam sistem.<\/p>\n\n\n\n<p>PT Lautan Air Indonesia mendukung industri dalam mengidentifikasi celah tersebut melalui evaluasi sistem secara menyeluruh, yang kemudian dilanjutkan dengan solusi yang disesuaikan, mulai dari program chemical, monitoring performa, hingga pendampingan operasional.<\/p>\n\n\n\n<p>Jika sistem boiler Anda masih mengalami masalah oksigen, korosi, atau performa yang tidak stabil, ini bisa menjadi saat yang tepat untuk mengevaluasi kembali sistem deaeration yang digunakan. Dengan partner yang tepat, masalah tidak hanya diselesaikan, tetapi juga dapat dicegah agar tidak terulang kembali.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.lautanairindonesia.com\/id\/contact-us\/\" target=\"_blank\" data-type=\"page\" data-id=\"1567\" rel=\"noreferrer noopener\">Hubungi tim Lautan Air Indonesia<\/a> untuk membahas masalah boiler Anda.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Deaeration in boilers is one of the most critical processes in maintaining system efficiency and preventing long-term damage. Without proper deaeration, dissolved gases like oxygen and carbon dioxide remain in the feedwater, leading to corrosion, reduced heat transfer, and costly equipment failure. In many industrial operations, these problems do not appear instantly, but once they develop, they are expensive and difficult to reverse. This is why understanding how deaeration works, choosing the right system, and knowing how to handle common issues are essential for stable and efficient boiler operation. The Purpose of Deaeration in Boilers The main purpose of deaeration in boilers is to remove dissolved gases, especially oxygen and carbon dioxide, from boiler feedwater before it enters the system. Oxygen is highly reactive and can cause pitting corrosion even at very low concentrations. Meanwhile, carbon dioxide dissolves in water and forms carbonic acid, which lowers pH and accelerates corrosion in condensate return lines. If these gases are not removed properly, they will continuously attack metal surfaces and reduce the lifespan of the equipment. By applying effective deaeration, industries can: In practice, deaeration is not just a protective step, but a key factor in keeping operational costs under control. Types of Deaerators Used in Boiler Systems To achieve effective deaeration in boilers, the system design must match operational needs. The two most commonly used types are tray type and spray type deaerators. 1. Tray Type Deaerator Tray type deaerators use multiple perforated trays to create maximum contact between steam and water. Feedwater flows downward through these trays, while steam rises upward, heating the water to its saturation temperature and releasing dissolved gases. This type is widely used in medium to large scale boiler systems because it offers stable performance and high efficiency, especially under varying load conditions. To maintain its effectiveness, the trays must be kept clean and free from fouling, as deposits can reduce contact efficiency. 2. Spray Type Deaerator Spray type deaerators work by dispersing water into fine droplets using spray nozzles. This increases the surface area, allowing faster heating and gas removal when the droplets come into contact with steam. This system is more compact and suitable for smaller applications or installations with space limitations. However, its performance depends heavily on nozzle condition, so regular inspection is important to ensure even spray distribution and consistent deaeration. Read Also: The Importance of Condensate Treatment for Reliable Boiler Operations Common Issues in Deaeration in Boilers In daily operation, issues in deaeration in boilers usually appear as small irregularities, but if ignored, they can quickly affect the entire boiler system. Understanding what causes these problems and how to respond is key to maintaining stable performance. 1. Oxygen Still Found in Feedwater One of the most common issues is when oxygen is still detected in the feedwater even after the deaeration process. This usually happens because the feedwater does not reach the required saturation temperature, the steam supply is not consistent, or the venting system is not releasing gases properly.&nbsp; To resolve this, operators need to ensure that the deaerator operates at the correct temperature, supported by a stable steam supply, and that the vent is adjusted properly to allow non condensable gases to escape without restriction. 2. Corrosion Still Occurs If corrosion continues to appear in boiler tubes or condensate lines, it is a strong indication that deaeration is not fully effective. This condition often occurs when residual oxygen remains in the system and is not supported by proper chemical treatment.&nbsp; The solution is to improve the overall deaeration performance while also applying an appropriate oxygen scavenger program, so that any remaining dissolved oxygen can be safely removed before it causes damage. 3. Steam Loss from Vent is Too High Excessive steam coming out from the deaerator vent is another issue that is often overlooked. This usually happens because the vent opening is too large, causing unnecessary steam loss without improving gas removal efficiency.&nbsp; To handle this, the vent should be adjusted carefully to achieve a balance, where gases can still be released effectively while minimizing energy loss from excessive steam discharge. Read Also: Boiler Water Treatment: Why It\u2019s Important and Key Steps to Process It 4. Deaerator Temperature is Unstable An unstable deaerator temperature can directly reduce the effectiveness of gas removal. This problem is commonly caused by fluctuating steam pressure or an inconsistent control system that cannot maintain steady operating conditions.&nbsp; To fix this, it is important to stabilize the steam supply and ensure that control valves and instrumentation are working properly, so the deaerator can consistently reach and maintain the required temperature. 5. Deaerator Gets Dirty Quickly When trays or spray nozzles become dirty or clogged frequently, the root cause is usually poor water quality entering the system. Suspended solids or hardness that are not properly treated upstream will accumulate inside the deaerator and reduce its efficiency.&nbsp; The best way to address this is by improving the upstream water treatment process, such as filtration or softening, and maintaining a regular cleaning schedule to keep the deaerator in optimal condition. Optimizing Deaeration in Boilers with the Right Support Deaeration in boilers is not only about equipment, but also about how well the system is operated and supported. Mechanical performance, chemical treatment, and operational control must work together to achieve consistent results. In many cases, recurring issues like corrosion, unstable temperature, or high oxygen levels are not caused by a single factor, but by a combination of system gaps that require a more integrated approach. PT Lautan Air Indonesia supports industries by identifying these gaps through detailed system evaluation, followed by tailored solutions that include chemical treatment programs, performance monitoring, and operational assistance. With the right approach, deaeration can run more efficiently, reduce the risk of damage, and help maintain long-term boiler reliability. If your boiler system is still experiencing oxygen issues, corrosion, or unstable performance, it may be time to reassess how your deaeration system is operating. Working with the right partner can help ensure the problem<\/p>","protected":false},"author":4,"featured_media":6677,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[],"class_list":["post-6676","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-publication"],"_links":{"self":[{"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/posts\/6676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/comments?post=6676"}],"version-history":[{"count":0,"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/posts\/6676\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/media\/6677"}],"wp:attachment":[{"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/media?parent=6676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/categories?post=6676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lautanairindonesia.com\/id\/wp-json\/wp\/v2\/tags?post=6676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}