Effect of additives on thermochemical conversion of solid biofuel blends from wheat straw, corn stover, and corn cob

Dragutinovic, Natasa; Höfer, Isabel; Kaltschmitt, Martin

doi:10.1007/s13399-017-0273-7

Cited by 18 publications

(15 citation statements)

References 52 publications

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“…Among crops, the largest amount of waste during agricultural production [20,25] or postharvest processes [26] can result from corn [27,28]. Corn has a high yield potential and a variety of applications [29][30][31].…”

Section: Introductionmentioning

confidence: 99%

Energy Consumption and Quality of Pellets Made of Waste from Corn Grain Drying Process

et al. 2022

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The aim of this study was to assess the possibility of managing the waste resulting from the corn grain drying process as a biofuel characterized by low energy consumption in the compaction process and to evaluate the quality of the pellets made of this waste. The waste was agglomerated in the form of corn grain (CG), husks (CH), and cobs (CC), and their mixtures were prepared in a 4:1 volume ratio. The results of the analyses showed that CH was the most advantageous material for agglomeration due to the process’s low energy consumption (47.6 Wh·kg−1), while among the prepared mixtures, CC-CH was the most energy-efficient (54.7 Wh·kg−1). Pellets made of the CH-CC mixture were characterized by good quality parameters, with a satisfactory lower heating value (13.09 MJ·kg−1) and low energy consumption in the agglomeration process (55.3 Wh·kg−1). Moreover, data analysis revealed that the obtained pellets had density (1.24 kg∙dm−3) and mechanical durability (89%), which are important in their transport and storage. The findings of this study suggest that the use of waste from the corn grain drying process, in the form of pellets, may allow obtaining granules with different quality.

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Section: Introductionmentioning

confidence: 99%

Energy Consumption and Quality of Pellets Made of Waste from Corn Grain Drying Process

et al. 2022

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“…The assessment of the chemical composition of ash from biofuels (biomass) demonstrates the degree of impact of solid residues from the combustion process on the environment. Moreover, the assessment of ash in terms of macro-and microelements content makes it possible to demonstrate its degree of usefulness (e.g., for fertilizer (agricultural) purposes) [28,29]. On the basis of the analysis of the chemical composition of ash, Table 1 presents the results of macroelements content in ashes from the analyzed biomass.…”

Section: Results Of Ashes' Chemical Composition Examinationmentioning

confidence: 99%

Evaluation of the Properties and Usefulness of Ashes from the Corn Grain Drying Process Biomass

et al. 2020

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The paper presents the results of a study on chemical composition of ashes from three types of waste biomass in terms of fertilizer usefulness. Waste from the process of corn grain drying, including corn cobs, corn grains and corn husk and their mixtures in the ratio 4:1 (v/v) were examined. The study proved that corn grain was the material with the highest concentration of macroelements among those studied (P—21,452 ppm, K—25,970 ppm, S—5911 ppm) and the mixture of corn cobs with corn grains (Ca—81,521 ppm). When microelements were considered, the highest concentration was recorded for corn cobs (Cu—207 ppm, Mn—844 ppm, Zn—857 ppm) and corn husk (Fe—15,100 ppm). The analysis of toxic elements in the ashes of the biomass studied showed their highest concentration in corn husk ash (Ni—494 ppm, Cr—301 ppm, Pb—42.7 ppm, As—4.62 ppm). The analysis showed that regardless of the type of biomass studied, all ashes were strongly enriched (in relation to the average soil content) with phosphorus and corn husk ash with calcium in particular. A slight enrichment in copper and lead was recorded for all ashes, and moderate or low for the other elements. It was found that the examined ashes from biomass, which is a residue from the drying of maize grain, have a high fertilizer usefulness.

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“…Corn stalk (CS) accounts for a large proportion of agricultural waste [23] and has broad application prospects, so it has gradually attracted the attention of researchers [24][25][26]. It is meaningful that the reasonable utilization of CS can solve the aforementioned problems of low energy content and high AAEMs to a certain extent.…”

Section: Introductionmentioning

confidence: 99%

Effects of process parameters on the physicochemical properties of corn stalk hydrochar and the removal of alkali and alkaline earth metals

Wang

Sun

et al. 2021

IET Renewable Power Gen

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The advantages of the direct combustion of agricultural biomass for power generation are restricted due to the drawbacks of this biomass and the deep peak shaving trend. Hydrothermal carbonization can improve the physical and thermochemical properties of raw materials. Corn stalk samples were selected as the research object in this study. Corn stalk hydrochars were prepared with reaction pressures of 0-3 MPa, reaction temperatures of 160-240 • C, and residence times of 1-10 h. The effects of the process parameters on the physicochemical properties of hydrochar and on the removal of alkali and alkaline earth metals (AAEMs) were studied by measuring the hydrochar mass, energy yield, product composition, morphology, as well as the removal efficiency of AAEMs. The results indicated that the corn stalk hydrochar had higher mass and energy yields than the raw corn stalk. X-ray diffraction showed that the carbon content in the hydrochar was greater than that in raw corn stalk. Scanning electron microscopy showed that the reaction temperature played a more significant role in the hydrothermal carbonization process than the reaction pressure and residence time.

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Effect of additives on thermochemical conversion of solid biofuel blends from wheat straw, corn stover, and corn cob

Cited by 18 publications

References 52 publications

Energy Consumption and Quality of Pellets Made of Waste from Corn Grain Drying Process

Energy Consumption and Quality of Pellets Made of Waste from Corn Grain Drying Process

Evaluation of the Properties and Usefulness of Ashes from the Corn Grain Drying Process Biomass

Effects of process parameters on the physicochemical properties of corn stalk hydrochar and the removal of alkali and alkaline earth metals

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