Due to fast climate change and foreseen damage through global warming, access to clean and green energy has become very much essential for the sustainable development of the society, globally. Biomass based energy is one of the important renewable energy resources to meet the day to day energy requirements and is as old as the human civilization. Biomass gasification is among few important aspects of bioenergy for producing heat, power and biofuels for useful applications. Despite, the availability of vast literature, technological and material advancements, the dissemination of gasification technology could not overcome the critical barriers for the widespread acceptability over the conventional energy resources. This article presents a comprehensive review on the technical advancements, developments of biomass gasification technology and the barriers being faced by different stakeholders in the wide dissemination of the technology for day to day requirements of the society, followed by recommendations for policy makers to make this technology popular while serving the society.

Recent advances in the development of biomass gasification technology: A comprehensive review

Opportunities and challenges in sustainable treatment and resource reuse of sewage sludge: A review

Biomass has proven to be an effective energy carrier capable of fulfilling the growing demand of clean and everlasting energy source for the sustainable development of society Among different biomass conversion routes, biomass gasification is one of the most promising thermochemical routes for conversion of biomass into gaseous fuel for both heat and power generation applications besides biofuel production through fermentation But, we are unable to present these gaseous fuels directly for domestic and commercial uses, which indicates the existence of various barriers including the lack of research in this area In this article, various barriers to the technology, such as challenges with biomass supply chain management, biomass pretreatment, generic shortcomings, gas conditioning and conversion technology have been highlighted Based on recent studies, the gasification of biomass, gas conditioning, government policies and utilization of fuel gas for heat and power generation applications have been identified as the greatest challenges Despite the availability of different gasifier reactors, a highly efficient reactor design is yet to be developed for successful operation and commercialization Thus, an advanced gasification system with efficient gas conditioning technology can significantly overcome many of the barriers

Global challenges in the sustainable development of biomass gasification: An overview

Treatment of biowaste, the predominant waste fraction in low- and middle-income settings, offers public health, environmental and economic benefits by converting waste into a hygienic product, diverting it from disposal sites, and providing a source of income. This article presents a comprehensive overview of 13 biowaste treatment technologies, grouped into four categories: (1) direct use (direct land application, direct animal feed, direct combustion), (2) biological treatment (composting, vermicomposting, black soldier fly treatment, anaerobic digestion, fermentation), (3) physico-chemical treatment (transesterification, densification), and (4) thermo-chemical treatment (pyrolysis, liquefaction, gasification). Based on a literature review and expert consultation, the main feedstock requirements, process conditions and treatment products are summarized, and the challenges and trends, particularly regarding the applicability of each technology in the urban low- and middle-income context, are critically discussed. An analysis of the scientific articles published from 2005 to 2015 reveals substantial differences in the amount and type of research published for each technology, a fact that can partly be explained with the development stage of the technologies. Overall, publications from case studies and field research seem disproportionately underrepresented for all technologies. One may argue that this reflects the main task of researchers—to conduct fundamental research for enhanced process understanding—but it may also be a result of the traditional embedding of the waste sector in the discipline of engineering science, where socio-economic and management aspects are seldom object of the research. More unbiased, well-structured and reproducible evidence from case studies at scale could foster the knowledge transfer to practitioners and enhance the exchange between academia, policy and practice.

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Treatment technologies for urban solid biowaste to create value products: a review with focus on low- and middle-income settings

A review of hydrogen production via biomass gasification and its prospect in Bangladesh

The results of experimental investigation of pulverized coal combustion process with the aim to improve energy efficiency of an industrial steam boiler are presented in the paper. The investigation included measurement of combustion process parameters in four typical operating conditions, from minimum to maximum steam boiler load, and visualization of combustion process by using the camera with thermal imaging sensor. Several organizational and technical measures to improve energy efficiency of the industrial steam boiler are proposed and discussed in the paper. The measures are evaluated in terms of a possible reduction in the coal consumption and CO 2 emissions.

Experimental study on the efficiency of pulverized coal-fired steam boiler

The results of field measurements conducted in Umka Cardboard Mill hall are presented in the paper. The points of interest were air temperature and humidity distribution inside the hall as well as the temperatures of the cardboard machine surfaces and inner walls of the hall. Temperature, humidity and velocity of air at supply-air openings were also measured. Based on the results material and heat balance of the hall was calculated and discussed. The aims of the study were to evaluate the thermodynamic properties and waste heat potentials of the air extracted from the hall by mechanical ventilation system.

Goran Jankes

Papers

Experimental study on the efficiency of pulverized coal-fired steam boiler

Airflow measurements and mass and heat balance in a cardboard mill hall to approach energy efficiency