GLR stands for Glass Lined Reactor, while SSR stands for Stainless Steel Lined Reactor. The main difference between these two types of reactors lies in their material of construction and their properties.
GLR, or Glass Lined Reactor, is a reactor made of carbon steel structure with a glass lining of uniform thickness. The glass lining protects the steel from corrosion and provides chemical inertness. GLRs are commonly used when the reaction mass is acidic, as the glass lining is resistant to chemical and acids, protecting the reactor surface from oxidation and corrosion. GLRs are ideal for dealing with strong acids like nitric, sulphuric, hydrochloric, or phosphoric acids that would corrode stainless steel reactors over time. GLRs also have a wide range of chemistry that can be performed in them. Some advantages of GLRs include high resistance to thermal shock, low maintenance costs, and excellent heat transfer properties. However, GLRs also have limitations such as limited pressure and temperature ranges and a relatively higher risk of mechanical damage or cracking.
SSR, or Stainless Steel Lined Reactor, is a reactor made of stainless steel. Stainless steel reactors have excellent thermal conductivity, can be heated quickly, and are resistant to high temperatures. They are hygienic and can achieve high stirring effects for both dense and granular materials. However, SSRs have poor resistance to strong acids and alkalis. Therefore, they are not suitable for reactions involving corrosive media.
In summary, GLRs are used when the reaction mass is acidic and protection against corrosion is required. They have good resistance to thermal shock and excellent heat transfer properties. On the other hand, SSRs are used when high thermal conductivity, quick heating, and resistance to high temperatures are desired. However, they are not suitable for reactions involving strong acids or alkalis.
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