Diesel Exhaust Gas Treatment Fluid Adblue Catalyst

• Type: Adblue
• Application: Diesel Truck
• Transport Package: Standard Export Packing
• Specification: 10kg
• Trademark: Mingshuo
• Origin: China
• Model NO.: Diesel Exhaust Gas Treatment Fluid
• HS Code: 310210
• Production Capacity: 1000 Ton/Year

Product Description

Diesel exhaust fluid (DEF) is an aqueous urea solution made with 32.5% urea and 67.5% deionized water. DEF is used as a consumable in selective catalytic reduction (SCR) in order to lower NO_x concentration in the diesel exhaust emissions from diesel engines.

CR systems are sensitive to potential chemical impurities in the urea solution, therefore the solvent is demineralized water. The urea solution is clear, non-toxic and safe to handle. However, it can corrode some metals and so must be stored and transported carefully.

DEF is stored in a tank on board the vehicle, and injected into the exhaust stream by a metering system. The injection rate depends on the specific after-treatment system, but is typically 2-6% of diesel consumption volume. This low dosing rate ensures long fluid refill intervals and minimises the tank's size (and subsequent obtrusion into vehicle packaging space). An electronic control unit adjusts the addition of fluid in accordance with such parameters as engine operating temperature and speed.

Working Principles
Diesel engines can be run with a lean burn air-to-fuel ratio (overstoichiometric ratio), to ensure the full combustion of soot and to prevent them exhausting unburnt fuel. The excess of air necessarily leads to generation of nitrogen oxides (NO_x), which are harmful pollutants, from the nitrogen in the air. Selective catalytic reduction is used to reduce the amount of NO_x released into the atmosphere. Diesel exhaust fluid (DEF) from a separate tank is injected into the exhaust pipeline, where the aqueous urea vaporizes and decomposes to form ammonia and carbon dioxide. Within the SCR catalyst, the NO_x are catalytically reduced by the ammonia (NH₃) into water (H₂O) and nitrogen (N₂), which are both harmless; and these are then released through the exhaust.

DEF is a 32.5% solution of urea, (NH₂)₂CO. When it is injected into the hot exhaust gas stream, the water evaporates and the urea thermally decomposes to form ammonia and isocyanic acid.

The overall reduction of NO_x by urea is:

2 (NH₂)₂CO + 4 NO + O₂ → 4 N₂ + 4 H₂O + 2 CO₂ and
2 (NH₂)₂CO + 3 NO₂ → 2 ¹⁄₂ N₂ + 4 H₂O + 2 CO₂

Our products can meet national standards, as well as the European Union standards and international quality certification.



Management System Certification: ISO9001:2008, ISO14001:2004, OHSAS18001:2007

Company Introduction:
Founded in 2004, Shandong Mingshuo New Energy Technology Co., Ltd. is located in Shandong Province, China. With a registered capital of CNY 30 million and an area of over 16 acres, Mingshuo is dedicated to the development, manufacturing, sales and service providing in environmental protection field.

We mainly specialize in organic waste treatment, biogas plant, desulfurization system, biogas purification, biogas utilization and organic fertilizer systems. As the production base of medium and large biogas equipments in China, our company is highly recommended by China Biogas Association, China Association of Rural Energy Industry, and China Import and Export Commodity Website. Our company has passed the quality management system ISO 9001:2008, environment management system ISO 14001:2004 and occupational health & safety management system OHSAS 18001:2007 standards, with professional environmental engineering construction qualification, safety production license in construction field, and qualifications of Class D1, D2 pressure vessel. Moreover, we have obtained more than 30 patents and participated in the formulation of the national standards for biogas desulfurization equipment.

With the unique design, professional R & D team, and pursuit of better solution, we're able to offer the most suitable and customized professional technical consulting, technical supports and after-sale services for all types of customers according to their different requirements and situations. Our products are widely used in biogas, fertilizer, coking, natural gas, city gas, food, ceramics, and other industries.


Contact: Emma Luan
Tel/Fax: [phone]
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Manufacturer & Supplier for Biogas Plant, Desulfurization System, Organic Waste Treatment Equipment etc.