Drying of biomass for second generation synfuel production

Fagernäs, Leena; Brammer, John; Wilén, Carl; Lauer, M.; Verhoeff, F.

doi:10.1016/j.biombioe.2010.04.005

Cited by 179 publications

(120 citation statements)

References 9 publications

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“…Biodiesel from plant oils and bioalcohol from sugar use only a portion of the total biomass. Next-generation processes are being developed to convert biomass to syngas (Baker & Keisler, 2011;Fagernäs et al, 2010) that can then be converted into fuels or chemicals by a synthetic process (the so-called Fischer-Tropsch, or FT, process …”

Section: Biogasmentioning

confidence: 99%

The Challenge of Bioenergies: An Overview

Carels¹

2011

Biofuel's Engineering Process Technology

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Section: Biogasmentioning

confidence: 99%

The Challenge of Bioenergies: An Overview

Carels¹

2011

Biofuel's Engineering Process Technology

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“…The moisture content of biomass delivered to a BCT site is typically in the range of 30% to 60% and usually requires drying (Fagernas et al, 2010). A common passive method is to solar-dry the feedstock by spreading it out and exposing it to the sun.…”

Section: Effects Of Feedstock Quality On Small Scale Gasificationmentioning

confidence: 99%

“…Additionally, smaller feedstock particle sizes lead to higher efficiency of the entire system because they have higher surface to volume ratio, thereby enabling improved heat transfer and promoting the reactivity of the biomass in the gasification process. However, if the particle size is too small, it increases the pressure drop for gases flowing through the reactor bed and prevents the gasifier from operating properly.The moisture content of biomass delivered to a BCT site is typically in the range of 30% to 60% and usually requires drying (Fagernas et al, 2010). A common passive method is to solar-dry the feedstock by spreading it out and exposing it to the sun.…”

mentioning

confidence: 99%

Performance Analysis of a Biomass Gasifier Genset at Varying Operating Conditions

Palmer¹,

Severy²,

Chamberlin³

et al. 2018

Applied Engineering in Agriculture

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ABSTRACT. An All Power Labs PP20 gasifier generation set (Berkeley, Calif.) any promising technologies are emerging for the conversion of residual forest waste to useful products. These processes are collectively known as biomass conversion technologies (BCTs) and include processes such as torrefaction, densification, and biochar production. However, the feasibility of BCT projects is highly dependent on the transportation economics of the unprocessed waste biomass (Pan et al., 2008). From a transportation economics standpoint, it is often optimal to place a BCT operation as close to the fuel source as possible. Examples include forest landing sites, at the roadside, or in locations close to forestry operations, such as former sawmills. Although optimal for transportation costs, technological and logistical challenges arise when operating a BCT in remote locations. A key logistical factor for BCT operation is obtaining a reliable source of electricity. Many potential sites do not have access to grid electricity, and a remote power source is therefore required to provide electricity to the BCT. BACKROUNDIn a previous study by Severy et al. (2016), various remote power generation technologies were compared for their potential feasibility for providing power at a remote forest landing site. The technologies evaluated in this study were an organic Rankine cycle (ORC) waste heat recovery device, a thermoelectric generator, a biomass gasifier with an engine generator (All Power Labs Power Pallet, Berkeley, Calif.), a solar PV array with battery storage, and a shaft work power generator. The generation sources were evaluated based on their mobility, footprint, reliability, operational intensity, electrical load following ability, environmental impact, capital cost, operational cost safety, and ease of permitting. The results of the technoeconomic feasibility study concluded that a biomass gasifier was the preferred alternative technology to replace a diesel generator at a BCT site due to its mobility, small footprint, competitive lifecycle cost, and quoted load following abilities (Severy et al., 2016). To validate the results of the feasibility study and extend research on the topic, the goal of this study is to evaluate the suitability of the APL PP20 for powering biomass conversion technologies in the greater Pacific Northwest area. The objectives are to measure the power output and load following capabilities, quantify the emission rates, and provide electricity to a remote BCT that has a fluctuating load. By conducting these tests, the authors can verify whether this gasifier generator is a technically-viable alternative to a diesel generator at offgrid locations. GASIFIER AS AN ELECTRICAL POWER SOURCEGasification technology has been used for decades (Ghosh et al., 2006). However, due to relatively recent technology improvements, there has been an increase in development and interest in the technology. Ahrenfeldt et al. (2013) review the state of the art of biomass gasification combined heat and power (CHP) syst...

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“…Drying system is used in processes to obtain the required moisture content of the feed. Fagernas et al [5] compared several types of dryers in a biomass drying process. They also investigated the environmental effects of dryers and offered different dryer types with respect to the feed characteristic and feed mass flow rate.…”

Section: Introductionmentioning

confidence: 99%