He aha nā ʻano hana no ka hana hou ʻana i nā palaka ʻōpala?

He aha nā ʻano hana no ka hana hou ʻana i nā palaka ʻōpala?

ʻEkolu mau ʻano no ka hana hou ʻana: 1. Lapaʻau hoʻoheheʻe wela: ʻO kēia ʻano hana e wela a hoʻoheheʻe i nā palaka ʻōpala i ka aila a i ʻole ke kinoea, a i ʻole e hoʻohana ia mau mea ma ke ʻano he ikehu a hoʻohana hou i nā ʻano kemika e hoʻokaʻawale iā lākou i nā huahana petrochemical no ka hoʻohana ʻana. ʻO ke kaʻina hana o ka hoʻoheheʻe wela ʻo ia: depolymerize ka polymer i nā wela kiʻekiʻe, a haki nā kaulahao molekala a hoʻoheheʻe ʻia i loko o nā molekele liʻiliʻi a me nā monomers. He ʻokoʻa ke kaʻina hana hoʻoheheʻe wela, a he ʻokoʻa ka huahana hope, aia ma ke ʻano o ka monomer, ka polymer kaumaha haʻahaʻa, a i ʻole ka hui ʻana o nā hydrocarbons lehulehu. ʻO ke koho o ka oilification a i ʻole ke kaʻina gasification pono e pili i nā pono maoli. ʻO nā ʻano hana i hoʻohana ʻia: ʻano pahu hoʻoheheʻe (no ka PE, PP, PP random, PS, PVC, a me nā mea ʻē aʻe), ʻano microwave (PE, PP, random PP, PS, PVC, a me nā mea ʻē aʻe). , PS, PMMA). ʻAno evaporator Tube (no PS, PMMA), ʻano moe ebullating (no PP, PP random, PE cross-linked, PMMA, PS, PVC, etc.), ʻano decomposition catalytic (no PE, PP, PS, PVC, etc. ). ʻO ka paʻakikī nui o ka hoʻoheheʻe ʻana i ka wela, ʻo ia ka maikaʻi o ka hoʻoheheʻe ʻana i ka wela, kahi e paʻakikī ai ka hoʻokō ʻana i ka hoʻoheheʻe ʻana i ka wela nui a me ka pohā wela. Ma waho aʻe o ka hoʻoheheʻe ʻana o ka wela, aia kekahi mau ʻano hana kemika ʻē aʻe, e like me ka haki ʻana o ka wela, hydrolysis, alcoholysis, alkaline hydrolysis, etc.

2. Hoʻoheheʻe hou ʻia ʻO kēia kaʻina hana e hoʻokaʻawale, ʻohi, a hoʻomaʻemaʻe i nā palaka ʻōpala, a laila hoʻoheheʻe a hoʻopaʻa ʻia i nā huahana plastik. No nā huahana ʻōpala a me nā mea i koe mai nā mea kanu hana resin a me ka hana ʻana i ka plastic a me nā mea kanu hana, hiki ke hoʻohana ʻia kēia ʻano hana e hana i nā huahana like ʻole me ka maikaʻi ʻoi aku ka maikaʻi. He mea paʻakikī ka hoʻokaʻawale ʻana a me ka hoʻomaʻemaʻe ʻana i nā palaka ʻōpala i hoʻohana ʻia i ka lehulehu, a he kiʻekiʻe ke kumukūʻai. Hoʻohana pinepine ʻia lākou e hana i nā huahana koʻikoʻi a haʻahaʻa. 3. Hoʻohana hou ʻia ka hui: ʻO kēia ʻano hana e wāwahi i nā plastics ʻōpala, e like me nā huahana PS foam, PU foam, etc.