scholarly journals Creating Values from Biomass Pyrolysis in Sweden: Co-Production of H2, Biocarbon and Bio-Oil

Processes ◽  
2021 ◽  
Vol 9 (3) ◽  
pp. 415
Author(s):  
Ilman Nuran Zaini ◽  
Nanta Sophonrat ◽  
Kurt Sjöblom ◽  
Weihong Yang

Hydrogen and biocarbon are important materials for the future fossil-free metallurgical industries in Sweden; thus, it is interesting to investigate the process that can simultaneously produce both. Process simulations of biomass pyrolysis coupled with steam reforming and water-gas-shift to produce H2, biocarbon, and bio-oil are investigated in this work. The process simulation is performed based on a biomass pyrolysis plant currently operating in Sweden. Two co-production schemes are proposed: (1) production of biocarbon and H2, and (2) production of biocarbon, H2, and bio-oil. Sensitivity analysis is also performed to investigate the performance of the production schemes under different operating parameters. The results indicated that there are no notable differences in terms of the thermal efficiency for both cases. Varying the bio-oil condenser temperature only slightly changes the system’s thermal efficiency by less than 2%. On the other hand, an increase in biomass moisture content from 7 to 14 wt.% can decrease the system’s efficiency from 79.0% to 72.6%. Operating expenses are evaluated to elucidate the economics of 3 different cases: (1) no bio-oil production, (2) bio-oil production with the condenser at 50 °C, and (3) bio-oil production with the condenser at 130 °C. Based on operation expenses (OPEX) and revenue alone, it is found that producing more bio-oil helps improving the economics of the process. However, capital costs and the cost for post-processing of bio-oil should also be considered in the future. The estimated minimum selling price for biocarbon based on OPEX alone is approx. 10 SEK, which is within the range of the current commercial price of charcoal and coke.

2018 ◽  
Vol 129 ◽  
pp. 134-149 ◽  
Author(s):  
Raquel Escrivani Guedes ◽  
Aderval S. Luna ◽  
Alexandre Rodrigues Torres

2022 ◽  
Vol 9 ◽  
Author(s):  
Abrar Inayat ◽  
Ashfaq Ahmed ◽  
Rumaisa Tariq ◽  
Ammara Waris ◽  
Farrukh Jamil ◽  
...  

Biomass pyrolysis is one of the beneficial sources of the production of sustainable bio-oil. Currently, marketable bio-oil plants are scarce because of the complex operations and lower profits. Therefore, it is necessary to comprehend the relationship between technological parameters and economic practicality. This review outlines the technical and economical routine to produce bio-oils from various biomass by fast pyrolysis. Explicit pointers were compared, such as production cost, capacity, and biomass type for bio-oil production. The bio-oil production cost is crucial for evaluating the market compatibility with other biofuels available. Different pretreatments, upgrades and recycling processes influenced production costs. Using an energy integration strategy, it is possible to produce bio-oil from biomass pyrolysis. The findings of this study might lead to bio-oil industry-related research aimed at commercializing the product.


Author(s):  
Hamayoun Mahmood ◽  
Muhammad Moniruzzaman ◽  
Suzana Yusup ◽  
Mohammad Ilyas Khan ◽  
Maria Jafar Khan

Fuel ◽  
2017 ◽  
Vol 196 ◽  
pp. 261-268 ◽  
Author(s):  
Shiyu Liu ◽  
Yaning Zhang ◽  
Liangliang Fan ◽  
Nan Zhou ◽  
Gaoyou Tian ◽  
...  

2011 ◽  
Vol 347-353 ◽  
pp. 2604-2607 ◽  
Author(s):  
Si Yi Luo ◽  
Chao Li ◽  
Chui Jie Yi ◽  
Yang Min Zhou

In this paper, a novel biomass pyrolysis and liquefaction system using blast furnace as heating source was presented. The system is composed of three parts: blast furnace slag granulation, biomass pyrolysis centrifuge reactor, and the waste heat of blast furnace as the heat source. As the cost of biomass pyrolysis was greatly reduced, this system has a promising application prospect.


2019 ◽  
Vol 117 (23) ◽  
pp. 12576-12583 ◽  
Author(s):  
John R. Hannon ◽  
Lee R. Lynd ◽  
Onofre Andrade ◽  
Pahola Thathiana Benavides ◽  
Gregg T. Beckham ◽  
...  

Technoeconomic and life-cycle analyses are presented for catalytic conversion of ethanol to fungible hydrocarbon fuel blendstocks, informed by advances in catalyst and process development. Whereas prior work toward this end focused on 3-step processes featuring dehydration, oligomerization, and hydrogenation, the consolidated alcohol dehydration and oligomerization (CADO) approach described here results in 1-step conversion of wet ethanol vapor (40 wt% in water) to hydrocarbons and water over a metal-modified zeolite catalyst. A development project increased liquid hydrocarbon yields from 36% of theoretical to >80%, reduced catalyst cost by an order of magnitude, scaled up the process by 300-fold, and reduced projected costs of ethanol conversion 12-fold. Current CADO products conform most closely to gasoline blendstocks, but can be blended with jet fuel at low levels today, and could potentially be blended at higher levels in the future. Operating plus annualized capital costs for conversion of wet ethanol to fungible blendstocks are estimated at $2.00/GJ for CADO today and $1.44/GJ in the future, similar to the unit energy cost of producing anhydrous ethanol from wet ethanol ($1.46/GJ). Including the cost of ethanol from either corn or future cellulosic biomass but not production incentives, projected minimum selling prices for fungible blendstocks produced via CADO are competitive with conventional jet fuel when oil is $100 per barrel but not at $60 per barrel. However, with existing production incentives, the projected minimum blendstock selling price is competitive with oil at $60 per barrel. Life-cycle greenhouse gas emission reductions for CADO-derived hydrocarbon blendstocks closely follow those for the ethanol feedstock.


Work Study ◽  
2000 ◽  
Vol 49 (2) ◽  
pp. 59-62 ◽  
Author(s):  
Michael Fisher

E‐commerce is either a major opportunity or a significant business threat. The cost of entry is low in terms of capital costs but high in terms of effort and opportunity cost. It can significantly lower the cost of trading but using it for this purpose is sub‐optimal; it allows restructuring of the supply chain, of business processes and of the nature of the business itself. Its effective deployment requires an understanding of the way in which the company operates now and of a vision of the way it could operate in the future. E‐commerce offers the technology to make, and can act as a catalyst for, this change.


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