Industry has gained considerable experience with co2 storage in operations that purify natural gas ( mainly in canada ) as well as with co2 injection to boost oil production ( primarily in the u . s . ) 在世界各地，制造肥料等化学品以及排除二氧化碳与硫化氢（又称酸气）以供应纯化天然气的过程，都大量采用了捕集技术。
