Abstract
System of hydrogen production from the organic part of solid household waste, typical for the landfill of the city of Odessa is discussed. The system consists of low-temperature waste pyrolysis, high-temperature gasification of pyrolysis products, as well as a unit for membrane separation of synthesis gas into pure hydrogen and carbon monoxide. The high efficiency of the system we offer is achieved due to the recovery of the exothermic heat of the process, as well as combustion of carbon monoxide obtained during the separation of synthesis gas. The Odessa landfill receives solid waste per year from 2.5 million m3 to 3.0 million m3 depending on the season. Accordingly, up to 1.0 million m3 or 157,000 tons of carbon-containing (biodegradable) waste is subject to energy processing. With a minimum selling price of hydrogen of $ 4/kg, the annual income from the sale of 15,700 tons will be $ 62.8 million. Bibl. 11, Fig. 3, Table 1.
Highlights
The current stage in the development of hydrogen energy should be considered as a result of the implementation of the European Union concept, approved in January 2009 by the European Commission as a new “environmental and energy package”, which in 2010 became the “20–20–20” program
A highly efficient system for producing hydrogen from waste by low-temperature pyrolysis and high-temperature gasification in our proposed method includes equipment for grinding and drying waste, a pyrolysis furnace, a gasifier, a lowtemperature heat recuperator based on materials with phase transitions, a high-temperature heat recuperator, a steam generator, a cooling system, synthesis gas cooling and purification system, a hydrogen evolution unit, a gas boiler, storage systems for hydrogen, ash and carbon dioxide
We propose to perform the separation of hydrogen from synthesis gas using membrane units
Summary
The current stage in the development of hydrogen energy should be considered as a result of the implementation of the European Union concept, approved in January 2009 by the European Commission as a new “environmental and energy package”, which in 2010 became the “20–20–20” program. Namely paper, plastic, wood, metal and glass, after sorting will be processed into useful products with a market value.
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