Lonyo Sodium Hydrosulfide: Lembe ma ukadhu man ngec

I tic mi petroleum man chemical, tic mi yiku piny ma leng calu ve vacuum distillation man catalytic cracking pol kare giwodho yamo ma rac. Yamo ma acidic eni pol kare gibedo ku 85%-95% hydrogen sulfide (H2S), 3%-10% carbon dioxide (CO2), 2%-5% gas ma kwo, man 0.5%-3% pa ​​piny mukende.

Ka yubu piny ma nok man ma dit pol kare timo tic ku yamu ma rac eni ni mako gi ku 30% sodium hydroxide (NaOH) solution. NaOH timo tic ku H2S mi yubu sodium hydrosulfide (NaHS). Ka rwom pa NaHS i pii utuc 30%, pii ne ukadhu kud i yub mi rwom. I ngei pii man rwom, NaHS medre ni 70%, man NaHS ma mol jupoko i dul.

Ento, calu yamo ma acid utiye ku CO₂, piny ma reco calu sodium carbonate (Na2CO3) wok ikare mi yath, ma dwoko piny leng pa NaHS.

Mi medo, ka open-drum flakers jutiyo kudu pi poko NaHS ma mol, NaHS timo tic ku oxygen i yamu, man eketho sodium thiosulfate (Na2S2O3), ma copo nyothre man tek ni kano. Open slicing de wodhu yamu ma rac, ma nyayu peko i kabedu mi yubu piny.

Dii kaneni pi nwangu wel ma piny pi sodium hydrosulfide, lembe ma nyayu anyonga bino bedu.