ʻOihana mana uila: condenser vacuum extraction, negative pressure dedusting.
ʻO ka ʻoihana Petrochemical: ka hoʻoheheʻe ʻana i ka ʻūhā, ka crystallization o ka ʻūhā;deoxygenation wai ma ka ʻaila ʻaila.
ʻO kēlā me kēia ʻano o nā mea hoʻoheheʻe i loko o ka ʻoihana lāʻau lapaʻau.
ʻO ka hoʻohālikelike kiʻekiʻe ma ka noiʻi mokulele.
ʻO ka hoʻololi ʻana i ka wai ma ka ʻenekini wai a me ka hoʻokuʻu ʻana.
ʻO ka ʻōnaehana vacuum.a me nā ʻano kaʻina hana hoʻopaʻa ʻana ma ka ʻoihana hana pepa.
ʻO ka hana ʻeleʻele o ka plastic a me ka ʻōpala.
ʻO ka lānahu a me ka ʻoihana mining: hoʻoheheʻe ʻia a me ka kānana ʻana; ka hoʻokahe kinoea i ka seam lanahu.
Pūnaehana ʻauwaʻa ma ka ʻoihana paka.
ʻO nā ʻano PSA āpau (pressure swing adsorption).