Top-Ranked Fine-Grained Categories of hydrogenation: =>see poetic categories

• exothermic:reaction,
• major:reaction,
• catalytic:process,
• catalytic:reaction,
• heterogeneous:reaction,
• industrial:reaction,
• molecular:reaction,
• heterogeneous:process,
• homogeneous:catalysis,
• organic:reaction,
• organic:synthesis,
• heterogeneous:catalysis,
• important:reaction,
• industrial:process,
• simple:reaction,
• synthetic:reaction,
• special:processing,
• fast:reaction,
• important:process,
• major:process,