The Use of Low-Calorific Value Gases In Environmental Protection Engineering

Uchman, Wojciech; Werle, Sebastian

doi:10.21307/acee-2016-014

Cited by 7 publications

(5 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The most popular and widely known is in 8 MW’s power Güssing (AUT), built in 2001. Other examples include plants in Kokemäki (FIN), Skive (DK), or Spiez (SUI) (Uchman and Werle 2016). Generally, it should be said that gasification systems are usually realized on a scale not much larger than combustion systems (Pinto et al 2007).…”

Section: Introductionmentioning

confidence: 99%

Gasification of sewage sludge within a circular economy perspective: a Polish case study

Werle

Sobek

2019

Environ Sci Pollut Res

Self Cite

View full text Add to dashboard Cite

Sewage sludge (SS) is a by-product of wastewater treatment plant (WWTP) operation. Due to fast rates of urbanization and industrialization, and rapid population growth, the world community faces a serious challenge associated with its disposal. There is an urgent need to explore low cost, energy efficient, and sustainable solutions for the treatment, management, and future utilization of SS. Thermal conversion of SS is considered the most promising alternative for sustainable SS management. Among three main thermochemical processes, it seems that gasification (GAS) of SS has the most advantages. The aim of this paper is a presentation of the gasification process as a sustainable method of SS management that takes into account the idea of a circular economy (CE). Gaseous fuel production, phosphorus recovery potential, and solid adsorbent production during the gasification process are analyzed and discussed. Result of this study shows that the lower heating value (LHV) of the gas from SS GAS process is up to 5 MJ/m3n and it can be effectively utilize in an internal combustion engines. The analysis proved that solid fraction after the SS GAS process can be treated as a valuable phosphorus source and perspective adsorbent materials. The amount of P2O5 in this material was equal to 22.06%. It is similar to natural phosphate rocks (28.05%). The maximum of the adsorption capacity of the phenol was comparable with commercial activated carbon (CAC): 42.22 mg/g for solid fraction after SS GAS and 49.72 mg/g for CAC. Graphical abstract

show abstract

Section: Introductionmentioning

confidence: 99%

Gasification of sewage sludge within a circular economy perspective: a Polish case study

Werle

Sobek

2019

Environ Sci Pollut Res

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, the low heating value of the pyrolysis gases is similar to syngas produced using air as a gasifying agent which its heating value ranges from 4 to 7 MJ/N m 3 . 48,49 The condensable fraction of carbonization gases is known as pyroligneous liquor or liquid. This liquid fraction, in turn, can be separated into two phases, forming the pyroligneous acid (PA) and the insoluble tar (IT).…”

Section: Carbonization Processmentioning

confidence: 99%

Potential use of wood pyrolysis coproducts: A review

Pereira

Fauller

Magalhães

et al. 2021

Env Prog and Sustain Energy

View full text Add to dashboard Cite

The wood carbonization is made at an enclosed environment with controlled addition of atmospheric air producing, besides charcoal, other coproducts such as condensable and non-condensable gases. These gases, which represent 70% of the dry wood mass, are released into the atmosphere, decreasing air quality and producing environmental and social impacts. In this context, it is necessary to develop technologies capable to convert these gases into usable products or transform them into heat and power. The incineration of gases from charcoal kilns opens new opportunities of business because the energy provided by burners can be utilized for drying the wood to be introduced into the kilns and for generation of electricity. On the other hand, condensable gases can also be used on a route to recover and purify the pyroligneous acid. Pyroligneous acid finds application in diverse areas, as antiseptic, antioxidant, antimicrobial, anti-inflammatory, herbicide, pesticide, plant growth enhancer, antitermitic activities; is a source for valuable chemicals; and provides smoked flavor and aroma for food. The main objective of this review is to explore the potential use of wood pyrolysis coproducts, aiming to subsidize and to encourage the technological development of equipment for use of these coproducts. This paper highlights the potential benefits arising from pyroligneous acid application and discusses the charcoal cogeneration technologies.

show abstract

“…Low heating value fuel commonly produces low flame temperature that beneficial in thermal nitric oxide (NOx) reduction [27]. However, a low heating value fuel has narrow flammability limits and lack of flame stability [28].…”

Section: Introductionmentioning

confidence: 99%

Thermal performance of cocoa pod cook stove

PUTU SUSASTRIAWAN,

PURWANTO,

SIDHARTA

et al. 2024

Journal of Thermal Engineering

View full text Add to dashboard Cite

Indonesia produces approximately 550.000 ton/year of cocoa pod waste from chocolate indus-try. The waste has a good potential to be used as a biomass feedstock of a cook stove. How-ever, thermal performance of the conventional cook stove is low when using a high moisture content feedstock, such as a cocoa pod waste. In addition, conventional cook stove generates high pollutant when high moisture content feedstock is used. In other to encounter the prob-lems, the present work develops gasifier based cocoa pod cook stove and investigates thermal performance of the stove at various equivalence ratios. The data collection is performed by varying equivalence ratio at 0.4, 0.5, and 0.6. Temperature of the stove, flame image, flame temperature, and water temperature are collected and used to analyze the thermal perfor-mance (i.e. useful heat and thermal efficiency) of the stove. The results reveal that a waste of cocoa pod can be used as a feedstock of gasifier based cook stove. Maximum useful heat of 1337.6 kJ and maximum thermal efficiency of 3.5% are obtained at optimum equivalence ratio of 0.5. To improve performance of the stove, the cocoa pod waste should be sun dried to reduce its moisture content and the porous burner may be applied as a burner of the gasifier based cook stove in the future work.

show abstract

The Use of Low-Calorific Value Gases In Environmental Protection Engineering

Cited by 7 publications

References 10 publications

Gasification of sewage sludge within a circular economy perspective: a Polish case study

Gasification of sewage sludge within a circular economy perspective: a Polish case study

Potential use of wood pyrolysis coproducts: A review

Thermal performance of cocoa pod cook stove

Contact Info

Product

Resources

About