Diesel Exhaust Fluid Plants

Protection of the environment, keeping the air quality as clean as possible from exhaust emissions of vehicles is the need of the hour. Regulations around the world have been strengthened considerably to achieve the desired goals. NOx emissions regulations started with passage of the Clean Air Act (CAA). 

Bharat Stage VI / Euro 6 specifies reduction of harmful pollutants like nitrogen oxide (NOx), carbon monoxide (CO), hydrocarbons and particulate matter (PM) from vehicle exhausts.

Diesel Exhaust Fluid (DEF) Plants produce Aqueous Urea Solution (AUS32) reduces the NOx content of the exhaust in a diesel vehicle by converting them in nitrogen and water.

Operations And Functioning

ISO 22241 specifies the quality characteristics of the NOx reducing agent Diesel Exhaust Fluid (DEF) which is needed to operate SCR converters. SCR converters i.e. Selective Catalytic Converter are used in motor vehicles with diesel engines.

The production facility consists of two independent stages:
1. Demineralization stage
2. Diesel Exhaust Fluid (DEF) production stage

The plant accepts a permeate stream with an electrical conductivity ≤5 μS/cm. The grade of water is based on the definition of water grade 3 of ISO 3696.
Diesel Exhaust Fluid (DEF) is produced by mixing demineralized water with urea under specific conditions.
The quality of the urea solution used for the technology complies with ISO 22241 standards.

Features

  • The Ultra-Pure water is produced using reverse osmosis or electro deionization process.
  • Water treatment system converts water having high TDS to water to < 5 TDS. Conductivity less than 5μ S/Cm.
  • For this, water is treated in 3 stages- raw water treatment, 1st pass of secondary treatment and 2nd Pass of Secondary treatment. Technical Grade Urea is procured from licensed sources only (ISO 22241 – 3).
  • Highly flexible production process using customised software.
  • Very low power consumption, <15kW.
  • User Friendly Screens built upon versatile AST software platform.
  • Blending Ratio can be automatically controlled to produce AUS32 and AUS40.
  • Online analysis of key parameters – ensures total quality in every batch of production.
  • The plant can be supplied as Manual, Semi-automatic and fully automatic as per customer needs.

Operations And Functioning

ISO 22241 specifies the quality characteristics of the NOx reducing agent Diesel Exhaust Fluid (DEF) which is needed to operate SCR converters. SCR converters i.e. Selective Catalytic Converter are used in motor vehicles with diesel engines.

The production facility consists of two independent stages:
1. Demineralization stage
2. Diesel Exhaust Fluid (DEF) production stage

The plant accepts a permeate stream with an electrical conductivity ≤5 μS/cm. The grade of water is based on the definition of water grade 3 of ISO 3696.
Diesel Exhaust Fluid (DEF) is produced by mixing demineralized water with urea under specific conditions.
The quality of the urea solution used for the technology complies with ISO 22241 standards.

Features

  • The Ultra-Pure water is produced using reverse osmosis or electro deionization process.
  • Water treatment system converts water having high TDS to water to < 5 TDS. Conductivity less than 5μ S/Cm.
  • For this, water is treated in 3 stages- raw water treatment, 1st pass of secondary treatment and 2nd Pass of Secondary treatment. Technical Grade Urea is procured from licensed sources only (ISO 22241 – 3).
  • Highly flexible production process using customised software.
  • Very low power consumption, <15kW.
  • User Friendly Screens built upon versatile AST software platform.
  • Blending Ratio can be automatically controlled to produce AUS32 and AUS40.
  • Online analysis of key parameters – ensures total quality in every batch of production.
  • The plant can be supplied as Manual, Semi-automatic and fully automatic as per customer needs.

Standards & Approvals

  • ISO 22241 Chapters 1-4
  • BS 17042

Standards & Approvals

  • ISO 22241 Chapters 1-4
  • BS 17042

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