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KRONOS: An algorithm for solving ill-conditioned nonlinear programs

delete2026-08-13
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M
M.G. Toufik Ahmed
M
M. M. Faruque Hasan *
DOI:10.1016/j.compchemeng.2026.109839delete
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Abstract

Abstract

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• KRONOS solves ill-conditioned NLPs via minimum-norm KKT residual corrections. • Highest feasibility on 75 ill-conditioned problems among 28 solver configurations. • KRONOS reaches the known optimum for a rank-deficient reactor optimization problem. • KRONOS fits NO–CO microkinetic experimental data when standard solvers struggle.
Keywords:
Nonlinear optimization
Ill-conditioned optimization
Minimum-norm KKT residual
Optimization solver
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COMPUTERS & CHEMICAL ENGINEERING
IF:
3.9
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271
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texas a&m university
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