Advanced Process Combination Concepts

Heidenreich, Steffen; Müller, Michael; Foscolo, P.U.

doi:10.1016/b978-0-12-804296-0.00005-1

Cited by 4 publications

(3 citation statements)

References 121 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This is due to the fact that conventional fluidized‐bed gasifiers involve bed materials and biomass in a single reactor. Dual fluidized‐bed gasifier can overcome this issue by employing two physically separated reaction zones (reactors), namely, gasifier and combustor, with a possible circulation of bed material (Figure 1) [31]. The implemented DFB gasification system (Figure 2) was based on an operational biomass CHP plant in Güssing, Austria [32], including the improvements that were carried out in ref.…”

Section: Methodsmentioning

confidence: 99%

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

Bagherian

Mehranzamir

Ahmed

et al. 2021

IET Renewable Power Gen

View full text Add to dashboard Cite

Biomass is one of the most versatile sustainable energy sources. This versatility allows utilization of different biomass feedstock using a verity of conversion techniques. Often, a biomass‐to‐bioenergy conversion method is selected depending on the application, end‐use product, and the type of feedstock. In many applications such as residential energy supply, it is possible to select amongst various technologies. Although, there exist several challenges such as cost‐effectiveness and sustainability that constrains bioenergy development. To this end, this research elaborates on the impacts of different conversion methods on techno‐economic performance of bioenergy systems for residential energy supply. In this context, Organic Rankine Cycle based on direct combustion, and Dual Fluidized‐Bed technology based on gasification were selected for that purpose. A techno‐economic comparative analysis illustrates that the primary product of the system and fuel cost are the two most important factors in feasibility assessment. The negative impact of feedstock price was more severe on the Organic Rankine Cycle. For wood chips prices below 55$/t, Organic Rankine Cycle could be the better option due to lower capital and maintenance costs. In contrast, Dual Fluidized‐Bed could better tolerate the variation of feedstock price; offering 8% lower cost of energy at 65$/t wood chips.

show abstract

Section: Methodsmentioning

confidence: 99%

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

Bagherian

Mehranzamir

Ahmed

et al. 2021

IET Renewable Power Gen

View full text Add to dashboard Cite

show abstract

“…At present, the high tar content in biomass gasication is one of the bottlenecks restricting the development and industrialization of the gasication technology. 1,2 Tar in gasication syngas is composed of a variety of oxygen-containing and oxygen-free organic hydrocarbon components with high boiling point and other characteristics, such as strong corrosion and strong pollution. 3,4 Condensation in the transmission pipeline results in transmission pipeline blockage and corrosion.…”

Section: Introductionmentioning

confidence: 99%

ReaxFF MD and detailed reaction kinetic study on the thermal cracking and partial combustion of anisole: a biomass model tar compound

Hu,

Zhao,

Luo

2023

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…For instance, possible alternatives include composting [24,25] and anaerobic digestion [26]. Moreover, thermochemical treatments such as combustion [27,28], gasification [28,29], and pyrolysis [28,30] are currently under study. However, two major disadvantages must be highlighted.…”

Section: Introductionmentioning

confidence: 99%

Enhancement of Methanogenic Activity in Volumetrically Undersized Reactor by Mesophilic Co-Digestion of Sewage Sludge and Aqueous Residue

et al. 2021

View full text Add to dashboard Cite

To date, energy recovery from biological sewage sludge (BSS) by anaerobic digestion has been very popular. However, it can often happen that anaerobic reactors are volumetrically undersized, thus reducing performance in terms of biogas production. A continuous-flow pilot-scale plant was used to investigate, for the first time, the effects of mesophilic anaerobic co-digestion (MACoD) of sewage sludge and aqueous residue (AR) from a biosolids treatment plant (BTP) on methanogenic activity under low hydraulic retention time (HRT) conditions (to simulate the undersizing of the reactor). The results showed that the digestate is always more rapidly biodegradable than the matrices fed, while particulate COD hydrolyzed (12 ± 1.3%) is independent of the quantity of AR dosed. Feeding over 35% of soluble OLR, the total VFAs in the system strongly decreased, despite the low HRT. In correspondence with higher dosages of AR, the percentage of CH4 increased up to 77–78% and the CO2 CH4−1 ratio decreased to 0.25 ± 0.2. Specific methane production increased from 0.09 ± 0.01 m3CH4 kgCODremoved−1 with BSS alone to 0.28 ± 0.01 m3CH4CH4 kgCODremoved−1 in the case of BSS co-digested with AR. Moreover, co-digestion with AR from a BTP allowed continuous specific methanogenic activity to be enhanced from 1.76 ± 0.02 m3CH4 tVSS−1 d−1 to 6.48 ± 0.88 m3CH4 tVSS−1 d−1. Therefore, the MACoD of BSS and AR from a BTP could be a good solution to enhance methanogenic activity in a volumetrically undersized anaerobic digester with reduced HRT.

show abstract

Advanced Process Combination Concepts

Cited by 4 publications

References 121 publications

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

Techno‐economic analysis of direct combustion and gasification systems for off‐grid energy supply: A case for organic rankine cycle and dual fluidized‐bed

ReaxFF MD and detailed reaction kinetic study on the thermal cracking and partial combustion of anisole: a biomass model tar compound

Enhancement of Methanogenic Activity in Volumetrically Undersized Reactor by Mesophilic Co-Digestion of Sewage Sludge and Aqueous Residue

Contact Info

Product

Resources

About