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Optimization and Implementation of Continuous Liquid-Liquid Extraction and In-Situ Separation Processes for Practical Recovery
Optimization and Implementation of Continuous Liquid-Liquid Extraction and In-Situ Separation Processes for Practical Recovery
Detailed Information
- 자료유형
- 학위논문 서양
- 최종처리일시
- 20250211153005
- ISBN
- 9798384043706
- DDC
- 620.11
- 저자명
- Speer, David.
- 서명/저자
- Optimization and Implementation of Continuous Liquid-Liquid Extraction and In-Situ Separation Processes for Practical Recovery
- 발행사항
- [Sl] : University of Michigan, 2024
- 발행사항
- Ann Arbor : ProQuest Dissertations & Theses, 2024
- 형태사항
- 146 p
- 주기사항
- Source: Dissertations Abstracts International, Volume: 86-03, Section: B.
- 주기사항
- Advisor: Tuteja, Anish.
- 학위논문주기
- Thesis (Ph.D.)--University of Michigan, 2024.
- 초록/해제
- 요약Liquid-liquid extraction (LLE) is one of the most common and widely utilized separation techniques in industrial processes to date, with countless industrial systems employing this unit operation around the world. Although LLE offers an easy and low-energy methodology for separating miscible liquids, its design is necessarily constrained by the need to avoid the formation of emulsions. Emulsions, while very effective in helping an extraction process reach its thermodynamic equilibrium, are difficult to separate out, often rendering the entire LLE system economically unviable. As such, LLE operations typically avoid emulsion formation and instead opt for non-emulsified systems that typically have lower extraction efficiencies and correspondingly higher operating costs. In the production of volatile fatty acids (VFAs) from fermentation broth, for example, the separation block can be responsible for up to half of the overall process cost. Alternatives to LLE, such as distillation or electrodialysis, struggle with similar tradeoffs related to high economic or environmental costs. The ideal miscible liquid separation system should be highly energy-efficient, possess low operating costs, easily scalable, and compatible with existing industrial processes. In this dissertation, we describe how our recently developed membrane-based LLE process termed as Continuous Liquid-liquid Extraction And in-situ Separation (CLEANS) operates at high efficiency with reduced operating costs and minimal energy input. We examine the recovery of volatile fatty acids (VFAs) and ammonia via CLEANS, and make note of our separation technology's unique strengths.This dissertation begins by addressing one of the most ubiquitous challenges faced by any membrane-based process-surface fouling. We show that our optimized hydrophilic and oleophobic (HL/OP) membranes are capable of rapidly separating emulsions many times faster than by gravity alone, and that they can function even after over a month of continuous fouling in oil. Next, we design a CLEANS based LLE process using these HL/OP membranes. Our optimized CLEANS process demonstrates a capacity to recover VFAs over an order of magnitude more efficiently than has been reported previously. We then study the scale up and techno-economics of the developed CLEANS system for VFA extraction. Our work illustrates that the CLEANS process enables highly consistent extraction efficiency across variable scales of operation, as well as significantly lower operating costs and shorter payback periods when compared with traditional LLE operations. Finally, we expand the utility of our CLEANS processes by demonstrating its effectiveness in converting dissolved ammonia found in wastewater directly into ammonium sulfate, a product that is widely utilized as a fertilizer. We highlight our CLEANS process' unique advantages for this particular application-namely, that it does not require heating of the feed stream, nor the addition of costly or environmentally detrimental chemicals. Overall, this dissertation aims to demonstrate the utility of the CLEANS process to act as an effective recovery methodology for a wide variety of industrially relevant chemical species. We anticipate that the CLEANS process may prove beneficial for separation across a diverse set of industries including bio-processing, fuel purification, wastewater treatment, chemical synthesis, and many more.
- 일반주제명
- Materials science
- 일반주제명
- Chemical engineering
- 일반주제명
- Analytical chemistry
- 일반주제명
- Biochemistry
- 키워드
- Ammonium sulfate
- 기타저자
- University of Michigan Materials Science and Engineering
- 기본자료저록
- Dissertations Abstracts International. 86-03B.
- 전자적 위치 및 접속
- 로그인 후 원문을 볼 수 있습니다.
MARC
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■00520250211153005
■006m o d
■007cr#unu||||||||
■020 ▼a9798384043706
■035 ▼a(MiAaPQ)AAI31631381
■035 ▼a(MiAaPQ)umichrackham005629
■040 ▼aMiAaPQ▼cMiAaPQ
■0820 ▼a620.11
■1001 ▼aSpeer, David.
■24510▼aOptimization and Implementation of Continuous Liquid-Liquid Extraction and In-Situ Separation Processes for Practical Recovery
■260 ▼a[Sl]▼bUniversity of Michigan▼c2024
■260 1▼aAnn Arbor▼bProQuest Dissertations & Theses▼c2024
■300 ▼a146 p
■500 ▼aSource: Dissertations Abstracts International, Volume: 86-03, Section: B.
■500 ▼aAdvisor: Tuteja, Anish.
■5021 ▼aThesis (Ph.D.)--University of Michigan, 2024.
■520 ▼aLiquid-liquid extraction (LLE) is one of the most common and widely utilized separation techniques in industrial processes to date, with countless industrial systems employing this unit operation around the world. Although LLE offers an easy and low-energy methodology for separating miscible liquids, its design is necessarily constrained by the need to avoid the formation of emulsions. Emulsions, while very effective in helping an extraction process reach its thermodynamic equilibrium, are difficult to separate out, often rendering the entire LLE system economically unviable. As such, LLE operations typically avoid emulsion formation and instead opt for non-emulsified systems that typically have lower extraction efficiencies and correspondingly higher operating costs. In the production of volatile fatty acids (VFAs) from fermentation broth, for example, the separation block can be responsible for up to half of the overall process cost. Alternatives to LLE, such as distillation or electrodialysis, struggle with similar tradeoffs related to high economic or environmental costs. The ideal miscible liquid separation system should be highly energy-efficient, possess low operating costs, easily scalable, and compatible with existing industrial processes. In this dissertation, we describe how our recently developed membrane-based LLE process termed as Continuous Liquid-liquid Extraction And in-situ Separation (CLEANS) operates at high efficiency with reduced operating costs and minimal energy input. We examine the recovery of volatile fatty acids (VFAs) and ammonia via CLEANS, and make note of our separation technology's unique strengths.This dissertation begins by addressing one of the most ubiquitous challenges faced by any membrane-based process-surface fouling. We show that our optimized hydrophilic and oleophobic (HL/OP) membranes are capable of rapidly separating emulsions many times faster than by gravity alone, and that they can function even after over a month of continuous fouling in oil. Next, we design a CLEANS based LLE process using these HL/OP membranes. Our optimized CLEANS process demonstrates a capacity to recover VFAs over an order of magnitude more efficiently than has been reported previously. We then study the scale up and techno-economics of the developed CLEANS system for VFA extraction. Our work illustrates that the CLEANS process enables highly consistent extraction efficiency across variable scales of operation, as well as significantly lower operating costs and shorter payback periods when compared with traditional LLE operations. Finally, we expand the utility of our CLEANS processes by demonstrating its effectiveness in converting dissolved ammonia found in wastewater directly into ammonium sulfate, a product that is widely utilized as a fertilizer. We highlight our CLEANS process' unique advantages for this particular application-namely, that it does not require heating of the feed stream, nor the addition of costly or environmentally detrimental chemicals. Overall, this dissertation aims to demonstrate the utility of the CLEANS process to act as an effective recovery methodology for a wide variety of industrially relevant chemical species. We anticipate that the CLEANS process may prove beneficial for separation across a diverse set of industries including bio-processing, fuel purification, wastewater treatment, chemical synthesis, and many more.
■590 ▼aSchool code: 0127.
■650 4▼aMaterials science
■650 4▼aChemical engineering
■650 4▼aAnalytical chemistry
■650 4▼aBiochemistry
■653 ▼aLiquid-liquid extraction
■653 ▼aMembrane technology
■653 ▼aSeparation processes
■653 ▼aVolatile fatty acids
■653 ▼aAmmonium sulfate
■690 ▼a0794
■690 ▼a0542
■690 ▼a0486
■690 ▼a0487
■71020▼aUniversity of Michigan▼bMaterials Science and Engineering.
■7730 ▼tDissertations Abstracts International▼g86-03B.
■790 ▼a0127
■791 ▼aPh.D.
■792 ▼a2024
■793 ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17164462▼nKERIS▼z이 자료의 원문은 한국교육학술정보원에서 제공합니다.
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