Detailed modeling of soot formation in laminar premixed ethylene flames at a pressure of 10 bar

Conference · Sun Jan 01 00:00:00 EST 1995 · Combustion and Flame; (United States)

OSTI ID:6571617

Kazakov, A; Wang, H; Frenklach, M ^[1]

---

1. Pennsylvania State Univ., University Park, PA (United States). Dept. of Materials Science and Engineering

Detailed modeling of soot particle nucleation, growth and oxidation in laminar premixed ethylene-air flames at a pressure of 10 bar is presented. The employed kinetic model of soot formation, developed and tested earlier for subatmospheric and atmospheric flames, can quantitatively describe the experimental soot volume fraction profiles collected in a number of ethylene flames at high pressures. The kinetic model consists of initial aromatic ring formation from nonaromatic species, planar polycyclic aromatic hydrocarbon (PAH) growth through the hydrogen-abstraction-acetylene-addition reaction mechanism, particle nucleation through coalescence of PAHs, particle growth by coagulation and surface reactions of the forming clusters and particles, and particle oxidation. Analysis of the computational results obtained at 10 bar and additional tests performed for a 1-bar flame suggest that the influence of pressure on soot production arises mainly from the larger concentration of acetylene, which affects both the soot surface growth and the nucleation of soot particles.

• OSTI ID: 6571617
• Report Number(s): CONF-940711-; CODEN: CBFMAO
• Journal Information: Combustion and Flame; (United States), Vol. 100:1-2; Conference: 25. international symposium on combustion, Irvine, CA (United States), 31 Jul - 5 Aug 1994; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
ETHYLENE
COMBUSTION KINETICS
SOOT
CHEMICAL REACTION YIELD
OXIDATION
COMBUSTORS
KINETIC EQUATIONS
LAMINAR FLOW
MATHEMATICAL MODELS
PRESSURIZATION
ALKENES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
EQUATIONS
FLUID FLOW
HYDROCARBONS
KINETICS
ORGANIC COMPOUNDS
REACTION KINETICS
YIELDS
025000* - Petroleum- Combustion
020800 - Petroleum- Waste Management