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The Triassic Chang 7 shale in the Ordos Basin with considerable total organic carbon content (TOC) has been considered as an ideal target for in-situ conversion process (ICP) in China. However, the compositional kinetics for oil and gas generation from the Chang 7 organic matter during heating remain unclear, causing difficulty in the resource evaluation of shale oil and the temperature optimization in future ICP. In this study, the non-isothermal pyrolysis of two Chang 7 kerogens at 2 and 20 ºC/h were conducted to investigate the potential of individual components of products as well as their evolution kinetics. By using a comprehensive two-dimensional gas chromatography (GC×GC), the yields of individual components (including C 1–5 , C 6–14 saturates, C 6–14 aromatics, C 15+ saturates, C 15+ aromatics and NSOs) in pyrolysis products were measured. The maximum yields of oils and C 1–5 from ZK-2 kerogen with hydrogen index (HI) of 471 mg/g TOC were 421.5 and 240.5 mg/g TOC, much higher than those from ZK-1 with HI of 332 mg/g TOC. Relatively, the temperature for giving maximum yield of C 6–14 is significantly higher than those of C 15+ and heteroatomic compounds (NSOs), which were decomposed to re-generate light hydrocarbons in the closed system. It showed that activation energies (Ea) for the generation and cracking of C 6–14 and C 2–5 were distributed in broader ranges compared with NSOs and C 15+ components by kinetic fits. Meanwhile, the mass conversions of oil and gas from the Chang 7 kerogen in ICP at 0.5–10 ºC/d were obtained. The temperatures giving maximum HC yield in ICP were predicted to be 330–368 ºC. The oil and gas generation potentials of the Chang 7 shale in the Ordos Basin giving maximum HC yields were estimated as 542 × 108 t and 89.4 × 108 m3, respectively. Finally, it is elucidated that heated temperatures of about 20 ºC higher than those giving maximum oil yield result in GOR higher than 200 m3/m3. These findings are beneficial for the economic production of shale oil in ICP. • Yields of individual pyrolysis products from the Chang 7 kerogens were determined. • Compositional kinetic models for the evolution of nine components were addressed. • T giving maximum HC yield in ICP at 0.5–10 ºC/d are 330–368 ºC. • ICP at T of 20 ºC higher than those giving maximum oil yield will result in GOR > 200 m3/m3. [ABSTRACT FROM AUTHOR]