Structural effect of Ni/TiO2 on CO methanation: improved activity and enhanced stability

Highly dispersed Ni/TiO2 catalyst with Ni (111) obtained by cold plasma decomposition shows improved activity and carbon resistance for CO methanation.

A STATE OF ART AND PROSPECTS OF HANDLING USED PET BOTTLES

The main data on the production volume of bottles from polyethylene terephthalate (PET) in the world are presented. The main ways of handling used PET bottles as one of the hazardous types of waste for the environment, but promising from the point of view of using their properties, are analyzed. The main methods of handling used PET bottles are considered and a critical analysis of each of them is given. Particular attention is paid to the methods of recycling PET bottles, which made it possible to efficiently use recycled PET raw materials directly for their intended purpose. The features of physical, chemical, biological and combined processing methods are also considered, in particular, combustion, gasification, pyrolysis, plasma decomposition of PET bottles, as well as their decomposition under the influence of microorganisms. The main ways of solving the problem of used PET bottles are proposed. Bibl. 84, Fig. 1.

A STATE OF ART AND PROSPECTS OF PLASTIC SOLID WASTE MANAGEMENT

Basic data on the volume and structure of solid waste in the world and Ukraine are presented. The need to improve the ways of handling plastic solid waste as one of the most dangerous for the environment and promising from the point of view of using their properties is shown. A detailed classification of methods for handling plastic solid waste is proposed and a critical analysis of each of them is given. Particular attention is paid to the methods of disposal of plastic solid waste, in particular, recycling, which makes it possible to effectively use secondary plastic raw materials directly for their intended purpose. The features of physical, chemical, biological and combined processing methods are also considered, in particular combustion, gasification, pyrolysis, plasma decomposition of plastic solid waste, as well as their decomposition under the influence of sunlight and microorganisms. The main ways of solving the problem of plastic solid waste in Ukraine are proposed. Bibl. 83, Fig. 3, Tab. 3.