The characteristics of the biomarkers and δ13C of n-alkanes released from thermally altered solid bitumens at various maturities by catalytic hydropyrolysis

► A soft solid bitumen was heated to simulate maturation of bitumen in reservoir. ► HyPy was engaged to release biomarkers and n-alkanes from bitumen residues. ► Biomarker parameters in HyPy pyrolysates were more stable than in maturation products. ► δ13C of n-alkanes in HyPy pyrolysates of various maturities are similar. ► HyPy provides a way to study solid bitumen at mature to high-over mature stages.