KR101665178B1 - CO₂저감 및 바이오매스 처리효율과 바이오에너지 생산성을 극대화한 waste-zero 바이오에너지 생산방법 - Google Patents
CO₂저감 및 바이오매스 처리효율과 바이오에너지 생산성을 극대화한 waste-zero 바이오에너지 생산방법 Download PDFInfo
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Abstract
Description
도 2는 본 발명 waste free 또는 waste-zero 바이오에너지 생산방법을 종속영양 미세조류 재배공정을 포함하여 도시한 다이어그램이다.
도 3a는 미세조류 배양시 Fe(Ⅲ)EDTA 흡수제에 의한 CO2 농도변화를 나타낸 그래프이다.
도 3b는 미세조류 배양시 Fe(Ⅲ)EDTA 흡수제에 의한 H2S 농도변화를 나타낸 그래프이다.
도 3c는 미세조류 배양시 세포농도에 대한 흡광도의 변화를 나타낸 그래프이다.
도 3d는 미세조류 배양시 세포농도에 대한 Fe(Ⅲ) 농도변화를 나타낸 그래프이다.
단위공정 | 유입물질 | 중간생성물질 | 바이오에너지 생산량 | |||
바이오당화 및 알콜발효공정 | 과실부산물 폐바이오매스 폐글리세롤 |
9,000 33 2 |
폐바이오매스 | 1,823 | 바이오에탄올 바이오부탄올 |
3,245 162 |
혐기소화공정 | 폐바이오매스 | 1,823 | 바이오가스 | 547 | ||
조류배양공정 | 바이오가스 | 547 | 미세조류 | 55 | 정제바이오가스 | 328 |
바이오디젤 생산공정 |
미세조류 | 55 | 폐바이오매스 폐글리세롤 |
33 2 |
바이오디젤 | 22 |
성분 | g/L |
글루코오스(Glucose) | 40 |
펩톤(Peptone) | 5 |
효모 추출물 | 5 |
Claims (22)
- 바이오매스 전처리 공정(1)을 포함하는 바이오당화 및 알콜 발효공정(2)과; 혐기소화공정(3); 및 독립 및 혼합영양 조류 재배공정(4)으로 이루어지는 바이오에너지 생산방법에 있어서;
(a)상기 바이오매스 전처리 공정(1)을 포함하는 바이오당화 및 알콜 발효공정(2)에서 생산되는 바이오알콜 및 부탄올 정제공정(8)의 폐발효액(11)을 포함하는 액상 부산물을 이용하여 바이오가스(13)를 생산하고 발생하는 부산물인 혐기소화슬러지(12)는 다시 상기 바이오매스 전처리공정(1)으로 반송되는 혐기소화 단계와,
(b)상기 (a)혐기소화 단계에서 발생하는 부산물인 혐기소화슬러지(12)는 바이오알콜 생산을 위한 바이오매스로 상기 독립 또는 혼합영양 조류 배양공정(4)에서 수확한 거대조류(16)와 함께 바이오매스 전처리공정(1)에 투입되어 재활용하는 단계와,
(c)상기 (a)단계의 바이오당화 및 알콜 발효공정(2)에서 생산된 바이오당(20)은 종속영양 미세조류 재배공정(18)에 필요한 영양성분으로 공급하는 단계 중 어느 하나 이상을 더 포함하여 이산화탄소 배출저감과 공정폐기물배출을 최소화하고 바이오매스 처리효율 및 바이오매스 생산성의 극대화하는 것이 특징인 바이오에너지 생산방법.
- 제 1항에 있어서, 상기 종속영양 미세조류 재배공정(18)에서 수확한 미세조류(19)와 독립영양 또는 혼합영양조류재배공정(4)중 어느 하나 이상에서 수확된 미세조류바이오매스(15)는 바이오 디젤 정제공정(5)에 공급하여 바이오디젤(7)을 생산하고, 상기 바이오디젤 정제공정의 부산물인 액상 글리세롤(9)과 고상의 당 함유 폐기물(17)은 바이오 당화 및 알코올발효공정(2)으로 반송시키는 것을 더 포함하는 것을 특징으로 하는 바이오에너지 생산방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 제 1항에 있어서, 상기 혐기소화공정(3)은 UASB 반응기를 이용하는 것을 특징으로 하는 바이오에너지 생산방법.
- 삭제
- 삭제
- 제1항에 있어서, 상기 혐기소화공정에서 발생하는 혐기소화슬러지(12)는 열분해를 통하여 바이오촤(22)로 제조되는 것이 특징인 바이오에너지 생산방법.
- 제1항에 있어서, 상기 종속영양 미세조류 재배공정(18)의 배양액은 Fe(Ⅲ)EDTA와 Fe(Ⅲ)EDTA 외 Fe(Ⅲ) 3가 철염, 산소(O2), 과산화수소(H2O2), 염소(Cl2), 차아염소산나트륨(NaOCl), 모노클로로아민(NH2Cl), 오존(O3) 중의 하나 이상의 산화제를 추가로 더 투입하여 황화수소를 처리하는 것을 특징으로 하는 바이오에너지 생산방법.
- 삭제
- 삭제
- 제 2항에 있어서, 상기 종속영양 미세조류는 건조중량당 지질(lipid) 오일 30% 이상인 것을 특징으로 하는 바이오에너지 생산방법.
- 제 2항에 있어서, 상기 액상 글리세롤(9)의 농도는 바이오디젤 생산량 대비 5-20%(w/v)인 것을 특징으로 하는 바이오에너지 생산방법.
- 제 2항에 있어서, 상기 고상의 당 함유 폐기물은 탄수화물 함량이 45-50%이상인 것을 특징으로 하는 바이오에너지 생산방법.
- 삭제
- 제11항에 있어서, 상기 Fe(Ⅲ)EDTA의 상기 종속영양 미세조류배양 공정의 배양액의 농도는 4 mM 이하로 유지하는 것을 특징으로 하는 바이오에너지 생산방법.
- 삭제
- 제 18항에 있어서, 상기 종속영양 미세조류재배공정은 바이오디젤 제조공정의 부산물인 액상글리세롤을 바이오디젤 제조공정으로부터 상기 종속영양 조류재배공정의 조류배양액 내부로 공급받는 것을 특징으로 하는 바이오에너지 생산방법.
- 제 18항 또는 제 20항 중 어느 한 항에 있어서, 상기 종속영양 조류재배공정은 바이오 당화 및 알콜발효공정에서 발생하는 당의 생산량과 같은 바이오 당화 및 알콜발효공정에서 전환되어 소모되는 당의 소모량의 차이를 바이오 당화 및 알콜발효공정으로부터 상기 종속영양 조류재배공정의 조류배양액 내부로 공급받는 것을 특징으로 하는 바이오에너지 생산방법.
- 제 21항에 있어서, 상기 종속영양 조류재배공정은 혐기소화공정으로부터의 액상폐기물을 상기 종속영양 조류재배공정에 공급하여 조류배양액에 질소와 인을 공급하는 것을 특징으로 하는 바이오에너지 생산방법.
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