薩巴捷反應（英語：Sabatier reaction），或薩巴捷過程（Sabatier process）由法國化學家保羅·薩巴捷和讓-巴蒂斯特·森登斯等人於1897年發現。該反應在高溫（最佳條件介於300°C－400°C）、高壓下以鎳觸媒催化，將氫氣和二氧化碳反應生成甲烷和水。釕與鋁（氧化鋁）之觸媒可提升此反應之效率。該反應為一放熱反應[1][2]。
- ∆H = −165.0 kJ/mol
![{\displaystyle {\ce {CO2{}+4H2->[{} \atop 400\ ^{\circ }{\ce {C}}][{\ce {pressure}}]CH4{}+2H2O}}}](http://wikimedia.org/api/rest_v1/media/math/render/svg/ceb1bbee6cc36730e26a3890a998c2d73e4ef9d8)
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