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This section provides an overview for urea scrs as well as their applications and principles. Also, please take a look at the list of 10 urea scr manufacturers and their company rankings. Here are the top-ranked urea scr companies as of December, 2024: 1.CECO Environmental, 2.Gates Corporation, 3.Hitachi Zosen Corporation.
Table of Contents
SCR is an abbreviation that can refer to both "selective catalytic reduction" and "silicon -controlled rectifier."
When we talk about urea SCR, we are primarily referring to selective catalytic reduction (SCR). As of 2022, this method predominantly employs an aqueous urea solution, hence the term "urea SCR."
Silicon controlled rectifiers are devices with switching characteristics and a three-terminal, four-layer structure used in power control circuits.
In the following sections, selective catalytic reduction and denitration (SCR) will be abbreviated as the SCR method.
As of 2022, urea SCR is utilized in exhaust gas treatment for automobiles, ships, and thermal power plants. However, back in 1989, it was still in the research stage for diesel vehicles, with attempts made to apply this method to diesel vehicles.
It was not until 2004 that practical application in automobiles was achieved. In the same year, Nissan Diesel (now UD Trucks) became the world's first company to incorporate urea SCRs, named FLENDS, into automobiles and put them into practical use.
Future demand for urea-SCR systems is expected to grow, partly due to diesel emission regulations that came into effect on October 1, 2003 (with standards based on the new regulations implemented on April 1, 2006).
In urea SCRs, exhaust gas initially passes through an oxidation catalyst, where NO is converted to NO2. During this process, CO and HC are also reduced. Next, an aqueous urea solution is injected into the exhaust gas, before the SCR catalyst, where the NH3 produced by urea hydrolysis serves as a reducing agent. NH3 reacts with NOx on the SCR catalyst, converting NOx into harmless N2. Finally, NH3 is further reduced by passing through an oxidation catalyst. This oxidation catalyst is used for ammonia slip control, which prevents the emission of ammonia into the atmosphere.
High-quality aqueous urea solutions are crucial for urea SCRs, as impurities can lead to deposits and disrupt the reduction process. An example of a high-quality aqueous urea solution is AdBlue, a registered trademark of the German Association of the Automotive Industry (VDA). The logistics industry was significantly impacted because diesel vehicles, in general, cannot restart without a continuous supply of aqueous urea solution.
Additionally, the production of urea water relies on urea as a raw material, synthesized from gaseous ammonia and carbon dioxide under high temperature and pressure conditions. In 2020, the Tokyo Institute of Technology announced a successful synthesis of urea from ammonia (carbonates) found in wastewater. The University of Tokyo also reported successful urea synthesis from ammonia (carbonates) in wastewater. Furthermore, urea has gained attention as a stable hydrogen carrier. This research was published on February 18, 2020, in the Nature Research scientific journal Scientific Reports under the title "Organic bases catalyze the synthesis of urea from ammonium salts derived from recovered environmental ammonia."
Considering the above, the stable supply of urea water is a future concern for urea SCRs. However, ongoing research and development efforts are expected to establish the necessary infrastructure in due course.
*Including some distributors, etc.
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Gates Industrial Corporation began in 1911 in Denver Colorado where the company remains today, with additional headquarters in Europe and Asia. The company is a manufacturer of power transmission and fluid power solutions to customers around the world in industries such as agriculture construction, automotive, mining, and heavy-duty industrial equipment. The company’s products include CVT transmission belts, serpentine kits, hydraulic hoses, electric water pumps for electric vehicles, and rubber synchronous belts used in material handling applications.
CECO Environmental, founded in 1869, is headquartered in Dallas, Texas, USA, and is a manufacturer of environmental solutions and products. The company offers products, including air quality control and fluid handling solutions, catering to diverse industries. It offers services like installation, maintenance, technical training, and compliance consulting, emphasizing complete solutions for clients' environmental needs. It has received awards such as the 2019 Environmental Excellence Award and the 2021 Innovation in Sustainable Technologies Award. Its clientele spans sectors like petrochemicals, pharmaceuticals, energy, and manufacturing.
Hitachi Zosen Corporation was established in 1943 and is a manufacturer of environmental, machinery, and infrastructure equipments based in Osaka, Japan. The company manufactures various machineries such as vacuum equipment, precision polishing devices, sheet extruding equipment, electron beam sterilization devices, and filter presses. Various technologies are developed by the company for the production of the products such as machine simulation, fluid simulation, automated manufacturing, deep UV sterilization, and artificial intelligence. The company has implemented policies for sustainability efforts and adhering to Sustainable Development Goals (SDGs).
Proventia Group Oyj, established in 2017 in Oulu, Finland, is a manufacturer of exhaust emission reduction technologies and equipment for the engine, machine, and vehicle industries. The company's products include emission control systems and emission control retrofits for heavy vehicles and machinery, as well as a range of parts for its equipment. The company also provides the production of test equipment for new solutions and thermal control insulation for heavy-duty machinery and equipment. It also launched an EVA product family for battery and fuel cell development and testing in 2023.
GVS North America, Inc. is a subsidiary of GVS Group, located in Sanford, Maine, and has been a manufacturer filter solutions since 1979. The company specializes in the production of highly technological filtration solutions for applications in the healthcare, life sciences, automotive, appliance, safety, and commercial and industrial filtration sectors. With its corporate headquarters in Bologna, Italy, the company has 19 plants across Italy, the United Kingdom, Brazil, the United States, China, as well as in Mexico, Romania, and Puerto Rico, while also maintaining 29 commercial offices worldwide to serve its global clientele.
SCR Solutions Holding Ltd., established in 2017 in Amsterdam, the Netherlands, is a manufacturer of production equipment for AdBlue diesel exhaust fluid. The company's products include a range of production equipment for AdBlue and also supplies filling equipment that includes cans, drums, and trucks. The company can supply filling equipment for AdBlue as well as make onsite visits for the custom manufacture of production equipment for AdBlue to suit a client's facilities. AdBlue is a diesel exhaust fluid used in vehicles with selective catalytic reduction technology to reduce harmful gases being released into the atmosphere.
Yara Canada, established in 1905 and headhquartered in Saskatchewan, Canada, is a manufacturer of crop nutrition products and chemical and environmental solutions. The company's products include micronutrient fertilizers, nitrogen sulfur fertilizers, and calcium nitrate fertilizers. It also produces ammonium nitrate, concrete accelerator admixture, and diesel exhaust fluid. These products are used in agriculture, power plants, and many industrial sites, such as cement, waste incinerators and glass manufacturing plants, which must increasingly be equipped with a NOx reduction system.
Nett Technologies Inc., established in 1994 in Mississauga, Ontario, Canada, is a manufacturer of pollution control solutions for compression and spark-ignited engines for both the OEM and retrofit markets. The company's products include engine exhaust silencers, power generator silencers, and engine silencers. These products are used on diesel and gas-powered vehicles, such as construction equipment, mining equipment, and forklifts for material handling machinery. The company serves industries that include construction, material handling, and power generation.
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
Ranking as of December 2024
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | CECO Environmental |
18.4%
|
| 2 | Gates Corporation |
14.7%
|
| 3 | Hitachi Zosen Corporation |
12.9%
|
| 4 | SCR Solutions Holding Ltd |
11.1%
|
| 5 | Proventia Group Oyj |
8.8%
|
| 6 | Nett Technologies Inc. |
8.3%
|
| 7 | Yara Canada |
7.8%
|
| 8 | GVS North America |
7.4%
|
| 9 | STMicroelectronics |
6.0%
|
| 10 | STT Emtec AB |
4.6%
|
Derivation Method
The ranking is calculated based on the click share within the urea scr page as of December 2024. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
2 | 25.0% |
|
Canada
|
2 | 25.0% |
|
Japan
|
1 | 12.5% |
|
Finland
|
1 | 12.5% |
|
Italy
|
1 | 12.5% |
|
Netherlands
|
1 | 12.5% |
25 products found
25 products
Serizawa Pharmaceutical Co., Ltd.
90+ people viewing
Last viewed: 1 hour ago
It has become a reliable JIS mark product. (JIS K-2247) With the tightening of automobile exhaust gas regulations, the urea SCR system is an exhau...
Takato Technica Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
Fast Response
The urea water production equipment NEXTA32.5 solves the burden of urea water (AdBlue, etc.). Features ■Cost reduction You can significantly reduc...
Takato Technica Co., Ltd.
40+ people viewing
Last viewed: 1 day ago
Fast Response
The urea water production equipment NEXTA32.5 solves the burden of urea water (AdBlue, etc.). Features ■Cost reduction You can significantly reduc...
Maruma Technica Co., Ltd.
420+ people viewing
Last viewed: 1 hour ago
Fast Response
The lineup includes JCB diesel engines and KOHLER diesel engines. JCB is a British construction machinery manufacturer that was founded in 1945 and...
9 models listed
Maruma Technica Co., Ltd.
460+ people viewing
Last viewed: 1 hour ago
Fast Response
The lineup includes JCB diesel engines and KOHLER diesel engines. JCB is a British construction machinery manufacturer that was founded in 1945 and...
8 models listed
Tohoku Shinwa Chemical Co., Ltd.
40+ people viewing
Last viewed: 1 hour ago
Adblue® is a high-grade urea water made of 32.5% urea and 67.5% pure water, which is essential for the urea SCR system installed in diesel cars. On...
Tohoku Shinwa Chemical Co., Ltd.
40+ people viewing
Last viewed: 41 minutes ago
Adblue® is a high-grade urea water made of 32.5% urea and 67.5% pure water, which is essential for the urea SCR system installed in diesel cars. On...
Tohoku Shinwa Chemical Co., Ltd.
40+ people viewing
Last viewed: 1 hour ago
Adblue® is a high-grade urea water made of 32.5% urea and 67.5% pure water, which is essential for the urea SCR system installed in diesel cars. On...
Tohoku Shinwa Chemical Co., Ltd.
50+ people viewing
Last viewed: 1 hour ago
Adblue® is a high-grade urea water made of 32.5% urea and 67.5% pure water, which is essential for the urea SCR system installed in diesel cars. On...
Serizawa Pharmaceutical Co., Ltd.
100+ people viewing
Last viewed: 1 hour ago
High-grade urea water for marine diesel SCR systems. It can reduce nitrogen compounds (NOx) emitted by engines and convert them into harmless nitro...
