Wɔ nnansa yi mfeɛ mu, ɛnam nsakraeɛ a ɛba wiase nyinaa ahoɔden nhyehyɛeɛ mu ne nneɛma a atwa yɛn ho ahyia ho banbɔ ahwehwɛdeɛ a ɛtu mpɔn nti, wɔde semi-coke, sɛ pɛtro a ɛyɛ den a ɛho tew na ɛyɛ adwuma yie no adi dwuma kɛseɛ wɔ nnuru, dadeɛ ne ahoɔden adwumayɛ mu. Semi-COKE yɛ semi-coke product a wɔde dry distillation ne pyrolysis a ɛyɛ mmerɛw a ɛka bom anaasɛ ɛnyɛ-cohesive fango wɔ mfinimfini ne ɔhyew a ɛba fam tebea mu na ɛyɛ. Ɛwɔ su a ɛne nsõ a ɛba fam, sulphur a ɛba fam, phosphorus a ɛba fam ne calorific bo a ɛkɔ soro, na nkakrankakra abɛyɛ nea ɛkorɔn-su pa a wɔde si fango a wɔde di dwuma wɔ amanne kwan so ananmu.
Sɛ yɛhwɛ mfiridwuma mu a, wɔayɛ semi-coke no mu nneɛma a wɔyɛ no yiye, titiriw no, dry distillation furnace mfiri a wɔayɛ no foforo, a ama semi-coke no aba ne ne su atu mpɔn kɛse. Pyrolysis temperature a wɔhwɛ so, fango a wɔannoa no nsusuwii ne nneɛma a ɛyɛ hyew a wɔsan de di dwuma no abɛyɛ nneɛma atitiriw a ɛka semi-coke adwumayɛ. Bio nso, mfiridwuma a wɔde di dwuma ɔkwan biara so a wɔde aba no ama semi-coke production nhyehyɛe no ayɛ nea ɛyɛ den, na ahoɔden a wɔde di dwuma ne efĩ a wɔtow gu no so atew bio.
Wɔ gua so dwumadie ho no, mfasoɔ a ɛwɔ semi-coke so no, aman ne mpɔtam pii regye atom. Wɔ nnuruyɛ mu no, semi-coke yɛ ade a ɛho hia a wɔde yɛ calcium carbide, na ne nsõ a ɛba fam no boa ma efĩ a ɛba calcium carbide no so no so tew. Wɔ dade a wɔde yɛ nneɛma mu no, lignite, sɛ pɛtro ne ade a ɛtew so no betumi atew ahoɔden a wɔde di dwuma ne mframa bɔne a wɔtow gu no so yiye. Bere koro no ara mu no, lignite a wɔhwehwɛ wɔ ɔmanfo a wɔnyɛ asraafo a ɛho tew ho gua no nso renya nkɔanim, titiriw wɔ mmeae a nneɛma a atwa yɛn ho ahyia ho banbɔ ho nhyehyɛe a emu yɛ den wom no. Lignite de nkakrankakra resesa fango a ayɛ mmerɛw no na ɛrebɛyɛ ade a ɛnyɛ nea ɛsɛe nneɛma a atwa yɛn ho ahyia a wɔde yɛ ɔhyew ne ahoɔden a wɔde ma wɔn a wɔte hɔ no.
Nanso, lignite adwuma no nso hyia nsɛnnennen. Amanaman ntam gua no wɔ gyinapɛn ahorow a ɛyɛ papa a ɛyɛ den ma lignite, na sɛnea wɔbɛma nneɛma a wɔyɛ ho ka ne nneɛma a atwa yɛn ho ahyia ho banbɔ ho ahwehwɛde ahorow ayɛ nea ɛkari pɛ no abɛyɛ ade a nnwumakuw de wɔn adwene si so. Nea ɛka ho no, ɛsɛ sɛ wɔyɛ lignite akwantu ne nneɛma a wɔkora so ho mfiridwuma no yiye bio na ama wɔatew nneɛma a ɛpaapae ne nneɛma a ɛyɛ hyew a wɔhwere no so. Daakye, ɛnam mfiridwuma mu nkɔsoɔ ne nhyehyɛeɛ mmoa nti, wɔhwɛ kwan sɛ Lignite bɛnya gyinabea a ɛho hia kɛseɛ wɔ wiase nyinaa ahoɔden gua so.
Wɔ wiase nyinaa ahoɔden nsakrae akyi no, Lignite mfiridwuma mu nnoɔma foforɔ ne gua so ntrɛmu bɛkɔ so ahyɛ nnwuma yi nkɔsoɔ a ɛbɛtena hɔ daa no ho nkuran na ɛde ahoɔden ano aduru a ɛho tew na ɛyɛ adwuma yie ama mfiridwuma ne ɔmanfoɔ mfuo.
