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Record W2068029216 · doi:10.2202/1542-6580.1919

Biomass Gasification in Supercritical Water -- A Review

2009· review· en· W2068029216 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.

Bibliographic record

VenueInternational Journal of Chemical Reactor Engineering · 2009
Typereview
Languageen
FieldEngineering
TopicSubcritical and Supercritical Water Processes
Canadian institutionsDalhousie University
Fundersnot available
KeywordsSupercritical fluidProcess engineeringExergyBiomass (ecology)Environmental scienceHeat exchangerWaste managementYield (engineering)Hydrogen productionExergy efficiencyHydrogenMaterials scienceChemistryEngineeringMechanical engineering

Abstract

fetched live from OpenAlex

Supercritical water possesses a number of important characteristics that make it suitable for oxidation, synthesis and gasification reactions. It is especially advantageous for very wet biomass whose gasification in this medium avoids the large expense of energy required for drying. Although the process is in laboratory scale it has a great potential for production of hydrogen and other gases from biomass. This paper reviews the present state of the art and summarizes major observations arrived at in small scale laboratory flow and batch reactors. Effects of operating parameters like, pressure, temperature, etc., on the yield and conversion are discussed. Catalysts appear to play an important role in increasing the conversion rate and decreasing the reaction temperature for gasification. Heat recovery from the product stream holds key to making the gasification process auto-thermal. Heat exchanger efficiency, therefore, plays an important role in this process. Several investigators have used the equilibrium model and exergy analysis for thermodynamic analysis of supercritical gasification plants. Energy efficiency of such a plant could be around 50%.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Not applicable · Consensus signal: none
GenreCandidate signal: Review · Consensus signal: Review
Teacher disagreement score0.900
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0010.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.023
GPT teacher head0.295
Teacher spread0.272 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it