Con esta herramienta te facilitamos un acceso a todas las ofertas y demandas de tecnología europeas y a búsquedas de socios para participar en propuestas europeas de I+D publicadas en la red Enterprise Europe Network, pudiendo filtrar los resultados para facilitar las búsquedas más acordes con tus necesidades.

¿Quieres recibir estos listados de oportunidades de colaboración en tu correo de forma periódica y personalizada? Date de alta en nuestro Boletín

Para optimizar los resultados de la búsqueda, se recomienda utilizar términos en inglés.

Nanorrevestimientos de SiO2 para intercambiadores de calor de gases de combustión que evitan la corrosión y contaminación

Resumen

Tipo:
Oferta Tecnológica
Referencia:
TODE20141201002
Publicado:
09/12/2014
Caducidad:
09/12/2015
Resumen:
Una pyme alemana y un centro de investigación especializado en optimización de procesos térmicos ha desarrollado un nanorrevestimiento de SiO2 para intercambiadores de calor de gases de combustión destinado a entornos agresivos expuestos a altas temperaturas. Este revestimiento evita la contaminación y corrosión y sus ventajas incluyen el incremento de la vida útil del intercambiador hasta 18 veces más que la ofrecida por los sistemas convencionales y una eficiencia considerablemente mayor. Se buscan investigadores o socios industriales para establecer acuerdos comerciales con asistencia técnica.

Details

Tittle:
SiO2 nano-coatings for exhaust gas heat exchangers to prevent corrosion and contamination
Summary:
A German SME and a research institute specialized in the optimization of thermal processes developed an SiO2 nano-coating for exhaust gas heat exchangers used in aggressive high temperature environments. The coating prevents contamination and corrosion. Advantages include a service life of the exchanger 18 times higher than conventional systems and a significantly improved efficiency. Industrial partners for commercial agreements with technical assistance or research partners are sought.
Description:
Radiant tube burners and exhaust gas exchangers made of stainless steel can be combined in thermal industrial processes to recover thermal energy from the exhaust gas and supply it to the production process again. Thus, high energy costs and CO2 emissions can be lowered significantly. But heat recovery can lead to problems if the exhaust gas exchanger becomes contaminated with dirt particles or corroded because it is exposed to aggressive high temperature environments (500 -600 °C). This prevents an efficient heat recovery and the exchanger has to be replaced, which is expensive and time-consuming.

The technology developed by a German SME specialized in optimizing thermal processes and a research institute specialized in gas and thermal technologies provides a new method to prevent corrosion and contamination.

The stainless steel surface is coated with a SiO2 layer at nanometer scale. The coating is dirt-repellent and acid-resistant and suitable to be used in aggressive high temperature environments. The heat exchangers are coated using the chemical vapor deposition (DVP) process, thus combining advantages of thermal DVP and conventional nano-coatings.

The coating is made of amorphous, pure SiO2 which is applied to a pre-treated and activated surface. Before drying the surface is treated with an oxide layer which then easily connects with the coating material. Chemical bonds between substrate and coating are created by means of oxygen bridges. The metal atoms are now capable to bind to SiO2molecules. The SiO2-coating is a thin, elastic and transparent film and thinner than 1 µm. It does not have a negative effect on heat transfer and has a thermal stability up to 450 °C.

Due to the SiO2-coating the metal atoms are no longer capable of binding to other atoms. That is why dirt particles cannot get a hold on the surface on the heat exchanger and can be wiped off easily during maintenance whereas uncoated heat exchangers contaminate more and more and require a lot of maintenance or replacement.

The longevity of the new technology was successfully proven in sulfuric acid and thermal shock tests (heating up and cooling down). The coated heat exchangers proved to have a service life 18 times higher than that of uncoated heat exchangers.

The newly developed coating is suitable for all thermal processes which expose heat exchangers to aggressive environments such as the chemical industry, the automotive industry, industrial furnaces, biogas plants or domestic heating appliances.
Advantages and Innovations:
- service life of heat exchangers can be extended up to 18 times
- resistant against high temperature (500-600°C), water, dirt and acid
- much longer maintenance intervals because need for maintenance and cleaning is reduced significantly
- Significantly improved efficiency
- Easy usability
- No negative effect on heat transfer
Stage of Development:
Already on the market
IPs:
Secret Know-how

Partner sought

Type and Role of Partner Sought:
Industrial partners using heat exchangers in aggressive and high temperature environments, such as the chemical industry, the automotive industry, industrial furnaces, biogas plants domestic heating applications who want to integrate the new technology into their thermal processes.
The German company offers technical assistance and support to ensure the technology transfer. The training of the partner will be done by the German company.
Research partners are sought for joint research projects, possibly EU-funded.

Client

Type and Size of Client:
Industry SME 50-249
Already Engaged in Trans-National Cooperation:
Si
Languages Spoken:
English
German

Keywords

Technology Keywords:
04002006 Intercambiadores de calor
04008003 Micro y nanotecnología relacionada con la energía
02002002 Recubrimientos
04002004 Tecnologías de hornos y calderas