8 research outputs found

    Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review

    Get PDF
    More than 27 million tonnes of waste plastics are generated in Europe each year representing a considerable potential resource. There has been extensive research into the production of liquid fuels and aromatic chemicals from pyrolysis-catalysis of waste plastics. However, there is less work on the production of hydrogen from waste plastics via pyrolysis coupled with catalytic steam reforming. In this paper, the different reactor designs used for hydrogen production from waste plastics are considered and the influence of different catalysts and process parameters on the yield of hydrogen from different types of waste plastics are reviewed. Waste plastics have also been investigated as a source of hydrocarbons for the generation of carbon nanotubes via the chemical vapour deposition route. The influences on the yield and quality of carbon nanotubes derived from waste plastics are reviewed in relation to the reactor designs used for production, catalyst type used for carbon nanotube growth and the influence of operational parameters

    Service Oriented Pervasive Applications Based On

    No full text
    Abstract. The widespread deployment of inexpensive communications technology, computational resources in the networking infrastructure, and network-enabled end devices poses an interesting problem for end users: how to locate and interact with a particular network service or device. The increasing presence of mobile and ubiquitous applications has created a need for distributed systems and applications that are dynamic and can efficiently adapt to changes in service availability, user requirements and protocols. This paper describes the development of pervasive applications based on a middleware proposal which extracts the functional description of available services in heterogeneous networks exposing it in a unified syntax, and offering them using some standardized protocols.
    corecore