ʻO ka wehe ʻana o H2S a me CO2 mai nā syngas he ʻenehana hoʻomaʻemaʻe kinoea maʻamau. Hoʻohana ʻia ia i ka hoʻomaʻemaʻe ʻana o NG, SMR reforming gas, coal gasification, LNG production me coke umu kinoea, SNG kaʻina. Hoʻohana ʻia ke kaʻina hana MDEA e wehe i ka H2S a me CO2. Ma hope o ka hoʻomaʻemaʻe ʻana i nā syngas, ʻoi aku ka H2S ma mua o 10mg / nm 3, ʻoi aku ka CO2 ma mua o 50ppm (kaʻina LNG).
● ʻenehana makua, hana maʻalahi, palekana a hilinaʻi hoʻi.
● ʻAʻole pono ka reboiler i kahi puna wela o waho no ka hana hydrogen mai ke kinoea maoli SMR.
(e lawe ana i ka hoʻomaʻemaʻe kinoea SMR ma ke ʻano he laʻana)
Hoʻokomo ka syngas i ka reboiler o ka hale kiaʻi hou ma 170 ℃, a laila hoʻomaha ka wai ma hope o ka hoʻololi ʻana i ka wela. Hāʻule ka mahana i 40 ℃ a komo i ka hale kiaʻi decarbonization. Ke komo nei nā syngas mai ka ʻaoʻao haʻahaʻa o ka hale kiaʻi, hoʻoheheʻe ʻia ka wai amine mai luna, a hele ke kinoea i loko o ka hale kiaʻi absorption mai lalo a luna. Hoʻopili ʻia ka CO2 i loko o ke kinoea. Hele ke kinoea decarbonized i ke kaʻina hana aʻe no ka ʻohi hydrogen. Hoʻomalu ʻia ka ʻike CO2 o ke kinoea decarbonized ma 50ppm ~ 2%. Ma hope o ka hele ʻana i ka hale kiaʻi decarbonization, hoʻopau ka hopena lean CO2 a lilo i wai waiwai. Ma hope o ka hoʻololi ʻana i ka wela me ka wai lean ma ka puka o ka hale kiaʻi hou, e komo ka wai amine i ka hale kiaʻi hou no ka wehe ʻana, a hele ke kinoea CO2 i ka palena pākaukau mai luna o ka hale kiaʻi. Hoʻomaʻamaʻa ʻia ka solution amine e ka reboiler ma lalo o ka hale kiaʻi e wehe i ka CO2 a lilo i wai lean. Ka wai lean puka mai ka lalo o ka regeneration hale kiaʻi, ma hope o pressurized a laila e hele i loko o ka waiwai a me ka ilihune wai wela exchanger a me ka lean wai cooler e hooluolu iho, a laila, hoʻi i ka decarbonization hale kiaʻi e komo i ke kinoea kinoea CO2.
Nui o ka mea kanu | NG a i ʻole Syngas 1000~200000 Nm³/h |
Decarbonization | CO₂≤20ppm |
desulfurization | H₂S≤5ppm |
Paʻi | 0.5~15 MPa (G) |
● Hoʻomaʻemaʻe kinoea
● Hana kinoea hydrogen
● Methanol hydrogen hana
● etc.