Ka Hoʻomaʻemaʻe ʻana i ka Sodium Hydrosulfide: Ka Moolelo a me nā ʻIke

I loko o ka ʻoihana ʻaila a me nā kemika, ʻo nā kaʻina hana hoʻomaʻemaʻe e like me ka distillation vacuum a me ka catalytic cracking e hoʻopuka pinepine i nā kinoea acidic. ʻO kēia mau kinoea acidic ma ke ʻano laulā he 85%–95% hydrogen sulfide (H₂S), 3%–10% carbon dioxide (CO₂), 2%–5% nā kinoea organik, a me 0.5%–3% nā ʻāpana ʻē aʻe.

ʻO ka maʻamau, mālama nā hale hoʻomaʻemaʻe liʻiliʻi a me waena i kēia mau kinoea waikawa ma ka omo ʻana iā lākou me kahi hopena sodium hydroxide (NaOH) 30%. Hoʻopili ka NaOH me H₂S e hana i ka sodium hydrosulfide (NaHS). Ke hiki ka nui o ka NaHS i loko o ka hopena i 30%, hana ka hopena i kahi kaʻina hana hoʻonui. Ma hope o ka dehydration a me ka hoʻonui ʻana, piʻi ka nui o ka NaHS i 70%, a laila ʻokiʻoki ʻia ka NaHS i hoʻoheheʻe ʻia i mau ʻāpana.

Eia nō naʻe, no ka mea aia ka CO₂ i loko o nā kinoea ʻakika, hoʻopuka ʻia nā mea haumia e like me ka sodium carbonate (Na₂CO₃) i ka wā o ka mālama ʻana, e hōʻemi ana i ka maʻemaʻe o ka huahana NaHS.

Eia kekahi, ke hoʻohana ʻia nā ʻōpala pahu hāmama e ʻokiʻoki i ka NaHS i hoʻoheheʻe ʻia, hana pinepine ka NaHS me ka oxygen i ka lewa, e hana ana i ka sodium thiosulfate (Na₂S₂O₃), kahi mea i maʻalahi ke pala a paʻakikī ke mālama. Hoʻokuʻu pū ka ʻokiʻoki hāmama i nā kinoea hoʻonāukiuki, e hoʻohaumia ana i ke kaiapuni hana.

Kaomi ma aneʻi e kiʻi i kahi ʻōlelo hoʻēmi no ka sodium hydrosulfide, e loaʻa nā mea kupanaha.