Pile delignification
AssigneeIstanbul Teknik Universitesi
InventorsOya Atici, Erdem Tezcan
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Abstract
The present invention relates to a delignification method which is applied for removing lignin from a biomaterial mixture in form of a pile, and essentially comprises the steps of piling of the biomaterials, treating the pile with an irrigation solution comprised of water or an aqueous solution comprising chemical materials, transferring the irrigation solution leached during reaching to the bottom of the pile to a pool or a storage unit with a drainage system, giving the irrigation solution which is transferred to the pool or the storage unit to irrigation again after controlling and optimizing, and leaching the pile by stopping the irrigation when the delignification process ends.
Claims19
A delignification method for removing lignin from a biomaterial mixture which is in form of a pile, comprising:
- piling biomaterials in open air,
- treating the piled biomaterials with an irrigation solution which is an aqueous solution comprising chemical materials at atmospheric temperature and atmospheric pressure,
- wherein the irrigation solution comprises at least one of the chemical materials:
- ammonium persulfate, potassium persulfate, and sodium persulfate,
- transferring the irrigation solution leached during reaching to the bottom of the pile, to a pool or a storage unit with a drainage system,
- recirculating the irrigation solution which is transferred to the pool or the storage unit to the piled biomaterials again after controlling and optimizing at least one of pH, chemical amounts, salinity and ionic force of the irrigation solution by compensating consumed chemical materials, and
- leaching the piled biomaterials by stopping the irrigation when the delignification process ends.
A delignification method for removing lignin from a biomaterial mixture which is in form of a pile, comprising:
- piling biomaterials in open air wherein the biomaterials are in bags or sacks,
- treating the piled biomaterials with an irrigation solution which is an aqueous solution comprising chemical materials at atmospheric temperature and atmospheric pressure,
- wherein the irrigation solution comprises at least one of the chemical materials:
- NaOH, Na2CO3, NH4OH, NaHCO3 KOH, Mg(OH)2, Na2S, K2S, ammonium persulfate, potassium persulfate, sodium persulfate, sodium hypochlorite, sodium perborate, sodium percarbonate, and hydrogen peroxide chemicals,
- transferring the irrigation solution leached during reaching to the bottom of the pile, to a pool or a storage unit with a drainage system,
- recirculating the irrigation solution which is transferred to the pool or the storage unit to the piled biomaterials again after controlling and optimizing at least one of pH, chemical amounts, salinity and ionic force of the irrigation solution by compensating consumed chemical materials, and
- leaching the piled biomaterials by stopping the irrigation when the delignification process ends.
Dependencies are inferred from the claim text.