Calorific evaluation and energy potential of grape pomace

Burg, Patrik; Ludín, David; Kazimierz, Rutkowski; Krakowiak-Bal, Anna; Trávníček, Petr; Zemánek, Pavel; Turán, Ján; Višacki, Vladimir

doi:10.1515/intag-2015-0082

Cited by 15 publications

(7 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The sample of white grape pomace in the dry state contained 6.03 wt.% hydrogen. Similar contents in white grape pomace were measured by Burg et al [ 51 ] at 5.82 wt.%. At higher torrefaction temperatures, hydrogen content decreased to 5.57 wt.% in the GP-W sample at 275 °C.…”

Section: Resultssupporting

confidence: 87%

Energy Utilization of Torrefied Residue from Wine Production

et al. 2021

View full text Add to dashboard Cite

A significant amount of waste is generated in the food industry, which is both an environmental and an economic problem. The recycling of this waste has become an important area of research. The processing of grapes produces 20–30% of the waste in the form of grape pomace and stalks. This article assesses the fuel values of these materials before and after torrefaction. The input materials were grape pomace samples from the varieties Riesling (Vitis vinifera “Welschriesling”) and Cabernet Sauvignon (Vitis vinifera “Cabernet Sauvignon”) from the South Moravia region and stalks from the variety Welschriesling. The torrefaction process was performed using a LECO TGA 701 thermogravimetric analyzer under nitrogen atmosphere at set temperatures of 225 °C, 250 °C, and 275 °C. The residence time was 30 min. Elemental analysis, calorific value, and gross calorific value were determined for all samples. The analyses show a positive effect of torrefaction on fuel properties in the samples. Between temperatures 250 °C and 275 °C, the carbon content increased by 4.29 wt.%, and the calorific value increased with the increase in temperature reaching a value of 25.84 MJ·kg−1 at a peak temperature of 275 °C in the sample grape pomace from blue grapevine.

show abstract

Section: Resultssupporting

confidence: 87%

Energy Utilization of Torrefied Residue from Wine Production

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Renewable energy sources play a key role in current global strategies to reduce greenhouse gas emissions and, partly, in efforts to replace fossil fuels [1,2]. Biomass is one of the most important sources of renewable energy.…”

Section: Introductionmentioning

confidence: 99%

Chemical Characteristics of Biomass Ashes

et al. 2018

View full text Add to dashboard Cite

The aim of the conducted research was to obtain information on the main components of ashes from 35 biomass species used in combustion processes to obtain reference data for the development of utility possibilities for these ashes, with particular emphasis on agricultural use. The examined biomass samples were divided into groups depending on origin: woody biomass and energetic woody plants I-WWB, herbaceous and grassy energy plants II-EC, agricultural waste III-AR, forest waste IV-FR and waste from the agri-food industry V-AFIW. The analysis of the studied elements contents was carried out in the designated groups. The chemical composition of ash was dominated by the macroelements Ca, K, P and S, which suggests the possibility of their agricultural use. At the same time, the low content of toxic elements such as As and Pb should not be a limiting feature in their use, with the exception of wood biomass. In addition, ashes obtained from the biomass combustion were enriched with microelements such as Zn, Cu and Mn, which further increases their possibilities of fertilizer use. The potential use of ash from each type of biomass in the aspect of its chemical composition should be considered individually, regardless of the division into groups depending on the origin of biomass.

show abstract

“…The implementation of grape pomace within combustion technologies seems to be favourable in particular in power sector dominated so far by coal-fired units (like in Poland) by fostering positive financial feedback (existing boilers may be easily adopted). It has been previously reported that this type of grape marc utilisation within power sector is financially reasonable and technically justified in both small and large wineries [6,19]. Moreover, in this case it may be easier to introduce wine pomace in power sector through one general technical solution.…”

Section: A C Bmentioning

confidence: 99%

“…nocondensing boilers. According to [19], to reduce a moisture content of grape pomace from 60% to 8%, approximately 1.5 GJ of heat need to be utilised. However, that value may be covered by renewable energy streams (solar, geothermal) or waste heat (from fumes) in integrated driers.…”

Section: Physicochemical Analysis Of Grape Pomacementioning

confidence: 99%

The Application of Grape Pomace as a Solid Biofuel in Combustion Technologies

Cholewiński¹,

Pospolita²,

Jesionek³

2017

The Publications of the MultiScience - XXXI. MicroCAD International Scientific Conference

View full text Add to dashboard Cite

The winemaking sector generates considerable quantity of biodegradable waste, that may be used as a solid fuels in several combustion technologies. Importantly, the specificity of both material physicochemical properties and production periodicity of grape marc imposes some limitations in its utilization within power units. In the article issues concerning combustion and co-combustion with lignite and bituminous coals of grape residues from wine industry were presented and discussed. The grape pomace was identified and compared to other solid fuels on the basis of proximate and ultimate analysis. The physicochemical parameters proved, that winemaking residues are similar to more conventional types of solid biomass (wood, straw), however, they contain more nitrogen. That fact may lead to increased emissions of NO x , particularly unfavourable in the case of small heating systems. Moreover, grape pomace differed significantly from coals, therefore, when utilised in existing single coal-fired power station, it seems to be vital to limit its presence in fuel mixture to 5-10%. In subsequent parts of the paper, in order to assess the yield of winemaking residues, production ratios (per unit of manufactured wine) of this type of biomass were proposed (0.18-0.35 kg per 1 litre of wine) as well as the influence of the moisture content on their technical potential in heat generation. Finally, cogeneration unit supplied by grape pomace in two ways were identified and calculated in terms of the identification of both electricity and heat capacities per wine production unit.

show abstract

Calorific evaluation and energy potential of grape pomace

Cited by 15 publications

References 15 publications

Energy Utilization of Torrefied Residue from Wine Production

Energy Utilization of Torrefied Residue from Wine Production

Chemical Characteristics of Biomass Ashes

The Application of Grape Pomace as a Solid Biofuel in Combustion Technologies

Contact Info

Product

Resources

About