Methane

Chemical type

• Product and reactant
^{Cite 1}
• Hydrocarbon fuel
• Alkane (simplest alkane)
^{Cite 2}
• Hydrocarbon fuel
• Carbon-based compound
^{Cite 3}

Key properties

• Main component of natural gas
• High hydrogen content

^{Cite 1}

• Small fuel molecule enabling high compression levels (up to 85% dimensionality reduction)
• Allows stable simulations with fewer latent variables (q_min^CPU = 35, q_min^acc = 40)
• Exhibits less abrupt nonlinear error propagation in source terms compared to larger molecules
• Combusted in air mixtures with equivalence ratios (φ) from 0.3 to 1.5 and initial temperatures (T₀) from 1200 K to 1800 K

^{Cite 2}

• Improves reactivity and ignitability when blended with ammonia
• Influences chemiluminescence signals (e.g., CN*, CH*, CO₂*) in ammonia blends
• Sensitive to equivalence ratio, ammonia fraction, and strain rate
• Forms excited radicals like CH*, CN*, and CO₂* in flames
• Affects flame color, separation distance, and stability in counterflow setups

^{Cite 3}

• Product of CO₂ methanation (Sabatier reaction)
• Reactant in dry reforming of methane (DRM)
• Energy storage medium (power-to-gas)

^{Cite 1}

• Fuel in 0D constant-pressure batch reactor simulations
• Validation and testing of latent variable (LV) model for detailed kinetics
• Studied in interpolation and extrapolation conditions to assess solver robustness
• Employed to demonstrate computational speed-ups (up to 56.6% with detailed mechanisms, average 2.4x overall)

^{Cite 2}

• Blended with ammonia in premixed air flames for HRR inference via chemiluminescence regression
• Enhancer for ammonia combustion in laminar counterflow and turbulent swirl burners
• In studies of flame transfer functions and thermoacoustic instabilities
• Fuel component in ammonia-methane-air mixtures for power generation with reduced carbon impact

^{Cite 3}

Classification by use

• Chemicals used as fuels
• Chemicals used to store renewable energy
^{Cite 1}
• Fuels used in reduced-order combustion modeling
• Chemicals simulated with lumped mechanisms (CRECK C1C3: 111 species, 1998 reactions)
• Chemicals simulated with detailed mechanisms (Aramco V1.3: 251 species, 1537 reactions)
• Substances for analyzing stiffness and timescales in ODE systems
^{Cite 2}
• Fuel blends for combustion enhancement
• Hydrocarbon additives in alternative energy research
• Chemicals in flame diagnostics and emissions control
^{Cite 3}

1. [Cite 1] Recent progress in microporous membrane reactors for catalytic conversion CO2 into value-added chemicals, Advanced Membranes, Volume 7, June 2026, 100190
2. [Cite 2] A latent variable framework for handling detailed chemistry in reacting flows, Applications in Energy and Combustion Science, Volume 25, March 2026, 100430
3. [Cite 3] Measurement of heat release rate using regression of chemiluminescence signals in premixed ammonia-methane/hydrogen-air flames, Applications in Energy and Combustion Science, Volume 25, March 2026, 100434