2022-12-30
ʻO ka hoʻoheheʻe ʻana o ka wai molecular sieve ma muli o ka ʻike wai o ka huahana, 4A molecular sieve water removal guidelines.
1. Hoʻohana: 4A molecular sieve loaʻa i ka mana adsorption koho a hiki ke hoʻoneʻe i ka makū i nā mea hoʻoheheʻe a me nā kinoea, akā ʻaʻole ia e hoʻopili i nā solvents a me nā kinoea (e like me tetrahydrofuran).Hoʻohana ke ʻano kumu i ka wai hoʻoheheʻe caustic, hiki ke hoʻokaʻawale ʻia ka soda caustic i ka wai, ʻaʻole maʻalahi e hoʻokaʻawale me ka tetrahydrofuran ma hope o ka hoʻomaloʻo ʻana, hoʻohana i ka soda caustic i mea paʻakikī no ka hana hou ʻana, ua hoʻonui maoli ke kumukūʻai.
2. Ke ala hana: He mea maʻalahi ka hana dehydration o 4A molecular sieve.Hiki ke hoʻokomo pololei ʻia ka kānana molekele i loko o ka wehe ʻana i ka solvent, a i ʻole ka hoʻonā a me ke kinoea hiki ke hele pololei ʻia ma o ka molecular sieve adsorption tower.
3. Hiki i ka Adsorption: Molecular sieve 4A he nui ka mana adsorption, maʻamau 22%.
4. Ke koho ʻana i ka hana adsorption: 4A molecular sieve hiki ke hoʻopili maʻalahi i nā molekole wai.No ka mea, ʻoi aku ka liʻiliʻi o ke anawaena o ka wai ma mua o ka zeolite, hiki ke hoʻokō ʻia ke kaulike electrostatic ma hope o ka adsorption (ʻaʻole komo nā kānana mole i nā ʻāpana me nā anawaena ʻoi aku ka nui ma mua o nā kānana molecular).
5.Analysis me ka hana ʻole ʻana i ka wai: ʻAʻole e hoʻokuʻu ʻia ka sieve molecular 4a ma hope o ka lawe ʻana i ka wai ma ka lumi wela.
6. Hoʻoponopono hou: He mea maʻalahi ka hana houʻana o 4A molecular sieve.Ma hope o hoʻokahi hola, hiki ke hoʻohana hou ʻia ka nitrogen ma luna o 300°C (hiki ke pā pololei ʻia nā mea hiki ʻole ke puhi ʻia i ka lewa).
7. ʻO ke ola lōʻihi o ka lawelawe ʻana: 4A hiki ke hana hou ʻia ka sieve molecular no 3-4 mau makahiki.
He hygroscopicity ikaika ka molecular sieves i ka makū, no laila pono e hoʻohana ʻia no ka hoʻomaʻemaʻe kinoea a pono e pale i ka hoʻopili pololei ʻana me ka ea.Pono e hana hou ʻia nā kānana molekula i komo i ka makū ma hope o ka mālama ʻana no kahi manawa lōʻihi.ʻAʻole nā kānana molekula i ka ʻaila a me ka wai wai.E ho'āʻo e pale i ka pilina me ka aila a me ka wai wai i ka wā e hoʻohana ai.ʻO nā kinoea no ka hoʻomaloʻo ʻana i ka mālama ʻana i nā huahana ʻoihana e pili ana i ka ea, hydrogen, argon, a me nā mea ʻē aʻe. Hoʻohui ʻia nā mea maloʻo adsorption ʻelua i ka like, hana kekahi a hiki ke hana hou ʻia kekahi.I mea e ʻae ai i ka hana mau ʻana o nā mea hana, hoʻololi lākou kekahi i kekahi.Hana ka mea maloʻo i ka mahana maʻamau, a hana i ka hana hou ʻana o ka holoi ʻana i ka ea ma kahi mahana ma luna o 340°C.
ʻO ke kaʻina hana a me ka loina o ka molecular sieve dehydration
ʻO ka dehydration kahi kaʻina hana adsorption kino.ʻO ka adsorption o ke kinoea i kumu nui ʻia e ka gravity a i ʻole ka diffusion ikaika o Fan.Ua like ka adsorption o ke kinoea me ka condensation o ke kinoea.ʻAʻole koho a he hana hoʻohuli.He liʻiliʻi ka wela o ka adsorption a he liʻiliʻi ka ikehu hoʻāla e pono ai no ka adsorption, no laila ʻoi aku ka wikiwiki o ka adsorption, ʻoi aku ka maʻalahi o ke kaulike.
Ka manawa hoʻouna: Dec-30-2022