Advanced thermochemical conversion technologies used for energy generation: Advancement and prospects

Siwal, Samarjeet Singh; Sheoran, Karamveer; Saini, Adesh K.; Vo, Dai‐Viet N.; Wang, Qilin; Thakur, Vijay Kumar

doi:10.1016/j.fuel.2022.124107

Cited by 33 publications

(12 citation statements)

References 127 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, most of these wastes are not treated in the right way because of the low economic benefits and the limitations of laws and regulations. At present, the study on converting agricultural biomass wastes to value-added resources is extensive because of the increasing regard for forest resource protection. , Microbe-mediated transformation, pyrolysis, and chemical conversions are the most widely used methods in this field. − …”

Section: Introductionmentioning

confidence: 99%

Preparation of Cellulose Nanofibers from Corn Stalks by Fenton Reaction: A New Insight into the Mechanism by an Experimental and Theoretical Study

Qin

Wang

et al. 2023

J. Agric. Food Chem.

View full text Add to dashboard Cite

Agricultural biomass wastes are an abundant feedstock for biorefineries. However, most of these wastes are not treated in the right way. Here, corn stalks (CSs) were assigned as the raw material to produce cellulose nanofibers (CNFs) via in situ Fenton oxidation treatment. In order to probe the formation mechanism of an in situ Fenton reactor, the bonding interaction of hydrated Fe 2+ ions and fiber has been systemically studied based on adsorption experiments, IR spectroscopy, density functional theory (DFT) calculations, and Raman spectroscopy. The results indicate that the coordination of the hydrated Fe 2+ ion to the fiber generates a quasi-octahedral-coordinated sphere around the Fe center. The Jahn−Teller distortion effect of the Fe center promotes the Fe−O 2 H 2 bonding interaction via reduction of the energy gap of the d z 2 orbital of the Fe center and π 2py /π 2pz orbitals of the H 2 O 2 molecule. The oxidation treatment of the pretreated CS by the in situ Fenton process shows the formation of a new carboxyl group on the fiber surface. The scanning electron microscopy image shows that the Fenton-treated fiber was scattered into the nanosized CNFs with a diameter of up to 50 nm. Both experimental and theoretical studies show that the pseudo-first-order kinetic reaction could describe the in situ Fenton kinetics well. Moreover, the proposed catalytic cycle shows that the large thermodynamic barrier is the cleavage of the O−O bond of H 2 O 2 to generate the • OH radical, and the whole catalytic cycle is found to be spontaneous at room temperature.

show abstract

Section: Introductionmentioning

confidence: 99%

Preparation of Cellulose Nanofibers from Corn Stalks by Fenton Reaction: A New Insight into the Mechanism by an Experimental and Theoretical Study

Qin

Wang

et al. 2023

J. Agric. Food Chem.

View full text Add to dashboard Cite

show abstract

“…Hydrothermal liquefaction is a commonly used thermochemical conversion process which can convert biomass into biobased fuels or value-added chemicals without pretreatment. − Spirulina with high protein content is a commonly used HTL material, which is widely used in catalytic HTL, coliquefaction upgrading in batch reactors, and pilot-scale continuous reactor . However, the yield and quality of bio-oil cannot meet commercial operation under normal conditions .…”

Section: Introductionmentioning

confidence: 99%

In Situ Synergistic Catalysis Hydrothermal Liquefaction of Spirulina by CuO–CeO₂ and Ni–Co to Improve Bio-oil Production

Meng

et al. 2023

ACS Omega

View full text Add to dashboard Cite

Hydrothermal liquefaction (HTL) is one of the most promising technologies for biofuel production. The preparation and application of catalysts for HTL have been the research focus in recent years. In this study, a new synergistic catalytic process strategy is proposed. CuO−CeO 2 /γ-Al 2 O 3 was used as an in situ hydrogen donor catalyst and Ni−Co/SAPO-34 was synthesized for hydroprocessing to improve bio-oil production process. The results of XRD and XPS demonstrated that the metal components were well supported on the catalyst. When the two catalysts were mixed, the yield of bio-oil increased from 51.00% to 64.51%, the carbon recovery rate raised from 69.53% to 88.18%, the energy recovery rate grew from 63.42% to 80.22%, and the S content is relatively reduced by 83.3%. Also, TG analysis showed that the content of light components in bio-oil increased. Moreover, the hydrocarbons and alcohols were observed to a higher proportion from the GC-MS analysis. This new method still has high catalytic activity after repeated use for five times. This study provides a new idea for preparing higher yield and superior quality bio-oil.

show abstract

“…As an organics‐rich abundant waste in agricultural fields, corn stover could play a significant role in the replacement of petroleum products 1–3 . Unfortunately, varying harvest methods, agronomic practices, weather patterns, and geographical location 4–7 make preprocessing difficult due to factors such as high moisture levels, exogenous ash, heterogeneity, bulk density, specific energy consumption for pelletization, and complex decomposition of biomass 8–12 . Lacey et al 10 .…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3] Unfortunately, varying harvest methods, agronomic practices, weather patterns, and geographical location [4][5][6][7] make preprocessing difficult due to factors such as high moisture levels, exogenous ash, heterogeneity, bulk density, specific energy consumption for pelletization, and complex decomposition of biomass. [8][9][10][11][12] Lacey et al 10 presented air classification as a potentially attractive separation technology that can remove soil-induced minerals for as little as $2.5/t of biomass like wood, with more than 41% ash removal with the sacrifice of less than 7% biomass. Tumuluru et al 11 showed that corn stover can be densified by 30-40% with 30%-40% less specific energy consumption by a high-moisture pelletization process for as little as $46.2/t of biomass pellets.…”

mentioning

confidence: 99%

Technoeconomic assessment comparison of batch and continuous hydrothermal carbonization of waste corn stover into advanced biorefinery feedstock

Islam

Saha

Klinger

et al. 2023

Biofuels Bioprod Bioref

View full text Add to dashboard Cite

The objective of this study was to investigate the economic feasibility of the hydrothermal carbonization (HTC) of waste corn stover. Two different cases of HTC of waste corn stover were considered for a 544 320 kg day−1 as‐received corn stover plant. Case I assumed a batch HTC process, and case II assumed a continuous HTC process. The results show that both cases were economically feasible; however, case I reached the break‐even point at 3 years whereas case II reached the break‐even point at 4 years. Case I also showed greater return on investment (5.02) than case II (3.98) at the end of the 20 year project life, including 26.6% lower total capital investment. About 73% of fixed capital cost came from investment in the reactor alone for case I, whereas 63% came from the reactor for case II. The break‐even selling price of the product was found to be $86.1/kg. A sensitivity analysis showed that the break‐even selling price of the product was the most sensitive to the variation of the cost of corn stover and the least sensitive to variation in the tipping income.

show abstract

Advanced thermochemical conversion technologies used for energy generation: Advancement and prospects

Cited by 33 publications

References 127 publications

Preparation of Cellulose Nanofibers from Corn Stalks by Fenton Reaction: A New Insight into the Mechanism by an Experimental and Theoretical Study

Preparation of Cellulose Nanofibers from Corn Stalks by Fenton Reaction: A New Insight into the Mechanism by an Experimental and Theoretical Study

In Situ Synergistic Catalysis Hydrothermal Liquefaction of Spirulina by CuO–CeO₂ and Ni–Co to Improve Bio-oil Production

Technoeconomic assessment comparison of batch and continuous hydrothermal carbonization of waste corn stover into advanced biorefinery feedstock

Contact Info

Product

Resources

About

Advanced thermochemical conversion technologies used for energy generation: Advancement and prospects

Cited by 33 publications

References 127 publications

Preparation of Cellulose Nanofibers from Corn Stalks by Fenton Reaction: A New Insight into the Mechanism by an Experimental and Theoretical Study

Preparation of Cellulose Nanofibers from Corn Stalks by Fenton Reaction: A New Insight into the Mechanism by an Experimental and Theoretical Study

In Situ Synergistic Catalysis Hydrothermal Liquefaction of Spirulina by CuO–CeO2 and Ni–Co to Improve Bio-oil Production

Technoeconomic assessment comparison of batch and continuous hydrothermal carbonization of waste corn stover into advanced biorefinery feedstock

Contact Info

Product

Resources

About

In Situ Synergistic Catalysis Hydrothermal Liquefaction of Spirulina by CuO–CeO₂ and Ni–Co to Improve Bio-oil Production