*1 Yokohama Dockyard & Machinery Works *2 Yokohama Research & Development Center, Technical Headquarters It usually takes a few weeks to analyze dioxins concentration in flue gas from MSW incinerators by official method. In order to reduce the required time for analysis, we have developed an on-line measuring equipment for pentachlorodibenzofuran (P5CDF) and a real-time measuring equipment for ...

In response to the growing contribution of the trucking sector to global warming and local air quality impacts, many nations and regions around the world have developed programs and policies to improve the environmental performance of heavy-duty vehicle fleets. To date, Japan, the U.S., Canada, and China have enacted mandatory fuel efficiency or greenhouse gas (GHG) standards for new heavy-duty...

In this paper, the properties of ignition mixed fuel pellets formed on basis fairly typical energy coal and wood industry waste in form cedar husks are experimentally established. The technical characteristics initial components mixtures based them, delay times for different mass concentrations biomass coal, composition flue gases during thermal decomposition these fuels their base were determi...

Conceptual design of a waste heat recovery cycle is carried out in attempt to enhance the thermal efficiency of a steam power plant. In the recovery system, super-critical an CO2 is employed as the working fluid operating in a Brayton cycle. Low grade heat rejected by the flue gases through the stack is used as the primary heat source, while a secondary heat exchanger utilizes th...

The biological oxidation of ferrous to ferric ion by iron oxidizing bacteria is potentially a useful industrial process for the removal of H2S from industrial gases, desulphurization of coal, and removal of sulfur dioxide from flue gas. In the bioprocess of H2S removal an aqueous Fe2(SO4)3 solution is used as an absorbent. H2S is absorbed and oxidized to elemental sulfur. At the same time, Fe i...

Municipal waste has characteristics that make it particularly suitable for the generation of heat and power. Waste is generally available close to the location of heat and power consumption in towns and densely populated areas. The technology used in modern Energy-from-Waste (EfW) plants is such that the waste is transformed into a reusable ash and that the flue gases are no longer a significan...

This study addresses the effect of impurities on the crystallization of Na2CO3 produced within a strategy for capturing CO2 from flue gases by alkaline absorption. A novel technology membrane assisted crystallization is proposed for Na2CO3 crystallization from mother liquors containing impurities. High purity of Na2CO3•10H2O crystals was obtained without impacting the performance of the mass tr...