The Experts below are selected from a list of 204 Experts worldwide ranked by ideXlab platform
I-lung Chien - One of the best experts on this subject based on the ideXlab platform.
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Combined Preconcentrator/Recovery Column Design for Isopropyl Alcohol Dehydration Process
Industrial & Engineering Chemistry Research, 2007Co-Authors: Saiful Arifin, I-lung ChienAbstract:The design and control of a complete heterogeneous azeotropic distillation column system using cyclohexane (CyH) as entrainer has been presented by Chien et al. (Ind. Eng. Chem. Res. 2004, 43, 2160). In that study, the feed composition to the heterogeneous azeotropic column is assumed to be near the Isopropyl Alcohol (IPA) and water azeotropic composition (water at 31 mol % in that paper). However, for a typical waste IPA stream in the semiconductor industry where IPA is used as a cleaning agent, this waste stream is more diluted. Taking a typical waste IPA stream with equal molar of IPA and water as an example, design and control of the overall Isopropyl Alcohol dehydration process will be investigated. The resulting proposed design flow sheet is a two-column system which combines preconcentrator column and recovery column into a single column. This design adapted from Ryan and Doherty (AIChE J. 1989, 35, 1592) for their ethanol dehydration process not only minimizes the total annual cost but also is ver...
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combined preconcentrator recovery column design for Isopropyl Alcohol dehydration process
Industrial & Engineering Chemistry Research, 2007Co-Authors: Saiful Arifin, I-lung ChienAbstract:The design and control of a complete heterogeneous azeotropic distillation column system using cyclohexane (CyH) as entrainer has been presented by Chien et al. (Ind. Eng. Chem. Res. 2004, 43, 2160). In that study, the feed composition to the heterogeneous azeotropic column is assumed to be near the Isopropyl Alcohol (IPA) and water azeotropic composition (water at 31 mol % in that paper). However, for a typical waste IPA stream in the semiconductor industry where IPA is used as a cleaning agent, this waste stream is more diluted. Taking a typical waste IPA stream with equal molar of IPA and water as an example, design and control of the overall Isopropyl Alcohol dehydration process will be investigated. The resulting proposed design flow sheet is a two-column system which combines preconcentrator column and recovery column into a single column. This design adapted from Ryan and Doherty (AIChE J. 1989, 35, 1592) for their ethanol dehydration process not only minimizes the total annual cost but also is ver...
Saiful Arifin - One of the best experts on this subject based on the ideXlab platform.
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Combined Preconcentrator/Recovery Column Design for Isopropyl Alcohol Dehydration Process
Industrial & Engineering Chemistry Research, 2007Co-Authors: Saiful Arifin, I-lung ChienAbstract:The design and control of a complete heterogeneous azeotropic distillation column system using cyclohexane (CyH) as entrainer has been presented by Chien et al. (Ind. Eng. Chem. Res. 2004, 43, 2160). In that study, the feed composition to the heterogeneous azeotropic column is assumed to be near the Isopropyl Alcohol (IPA) and water azeotropic composition (water at 31 mol % in that paper). However, for a typical waste IPA stream in the semiconductor industry where IPA is used as a cleaning agent, this waste stream is more diluted. Taking a typical waste IPA stream with equal molar of IPA and water as an example, design and control of the overall Isopropyl Alcohol dehydration process will be investigated. The resulting proposed design flow sheet is a two-column system which combines preconcentrator column and recovery column into a single column. This design adapted from Ryan and Doherty (AIChE J. 1989, 35, 1592) for their ethanol dehydration process not only minimizes the total annual cost but also is ver...
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combined preconcentrator recovery column design for Isopropyl Alcohol dehydration process
Industrial & Engineering Chemistry Research, 2007Co-Authors: Saiful Arifin, I-lung ChienAbstract:The design and control of a complete heterogeneous azeotropic distillation column system using cyclohexane (CyH) as entrainer has been presented by Chien et al. (Ind. Eng. Chem. Res. 2004, 43, 2160). In that study, the feed composition to the heterogeneous azeotropic column is assumed to be near the Isopropyl Alcohol (IPA) and water azeotropic composition (water at 31 mol % in that paper). However, for a typical waste IPA stream in the semiconductor industry where IPA is used as a cleaning agent, this waste stream is more diluted. Taking a typical waste IPA stream with equal molar of IPA and water as an example, design and control of the overall Isopropyl Alcohol dehydration process will be investigated. The resulting proposed design flow sheet is a two-column system which combines preconcentrator column and recovery column into a single column. This design adapted from Ryan and Doherty (AIChE J. 1989, 35, 1592) for their ethanol dehydration process not only minimizes the total annual cost but also is ver...
Robert K Cleary - One of the best experts on this subject based on the ideXlab platform.
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chlorhexidine with Isopropyl Alcohol versus iodine povacrylex with Isopropyl Alcohol and Alcohol versus nonAlcohol based skin preparations the incidence of and readmissions for surgical site infections after colorectal operations
Diseases of The Colon & Rectum, 2015Co-Authors: Christodoulos Kaoutzanis, Crystal M Kavanagh, Stefan W Leichtle, Kathleen B Welch, Akkeneel Talsma, James F Vandewarker, Richard M Lampman, Robert K ClearyAbstract:BACKGROUND: Surgical site infections are a major cause of morbidity and mortality after colorectal operations. Preparation of the surgical site with antiseptic solutions is an essential part of wound infection prevention. To date, there is no universal consensus regarding which preparation is most efficacious. OBJECTIVE: This study compared 2.0% chlorhexidine with 70.0% Isopropyl Alcohol versus 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol and Alcohol-based versus nonAlcohol-based skin preparations with regard to efficacy in preventing postoperative wound infections. DESIGN: This is a retrospective study from 2 prospectively collected statewide databases combined. A propensity score model was used to adjust for differences between the groups in patient demographics, characteristics, comorbidities, and laboratory values. SETTINGS: The multicenter data set used in this analysis represents a variety of academic and community hospitals within the state of Michigan from January 2010 through June 2012. PATIENTS: Patients over the age of 18 years who underwent clean-contaminated colorectal operations were included. MAIN OUTCOME MEASURES: The incidence of superficial surgical site infections, any surgical site infection, any wound complication, and readmission within 30 days for surgical site infection were measured. RESULTS: When 2.0% chlorhexidine with 70.0% Isopropyl Alcohol (n = 425) and 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol (n = 115) were compared, a total of 540 colorectal cases met inclusion criteria. When Alcohol-based (n = 610) and nonAlcohol-based (n = 177) skin preparations were compared, a total of 787 colorectal cases met inclusion criteria. There was no significant difference in the propensity-adjusted odds for having any of the 4 outcomes of interest when comparing 2.0% chlorhexidine with 70.0% Isopropyl Alcohol to 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol and when comparing Alcohol-based with nonAlcohol-based skin preparations. LIMITATIONS: This was a nonrandomized study performed retrospectively based on data collected within the state of Michigan. CONCLUSIONS: The use of 2.0% chlorhexidine with 70.0% Isopropyl Alcohol versus 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol or Alcohol-based versus nonAlcohol-based skin preparations does not significantly influence the incidence of surgical site infections or readmission within 30 days for surgical site infection after clean-contaminated colorectal operations.
Kerry L Laplante - One of the best experts on this subject based on the ideXlab platform.
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ethanol and Isopropyl Alcohol exposure increases biofilm formation in staphylococcus aureus and staphylococcus epidermidis
Infectious Diseases and Therapy, 2015Co-Authors: Megan K Luther, Sarah Bilida, Leonard A Mermel, Kerry L LaplanteAbstract:Introduction Alcohols, including ethanol and Isopropyl Alcohol, are used in clinical practice for disinfection and infection prevention. Recent studies, however, demonstrate that Alcohols may enhance biofilm production in Staphylococci.
Christodoulos Kaoutzanis - One of the best experts on this subject based on the ideXlab platform.
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chlorhexidine with Isopropyl Alcohol versus iodine povacrylex with Isopropyl Alcohol and Alcohol versus nonAlcohol based skin preparations the incidence of and readmissions for surgical site infections after colorectal operations
Diseases of The Colon & Rectum, 2015Co-Authors: Christodoulos Kaoutzanis, Crystal M Kavanagh, Stefan W Leichtle, Kathleen B Welch, Akkeneel Talsma, James F Vandewarker, Richard M Lampman, Robert K ClearyAbstract:BACKGROUND: Surgical site infections are a major cause of morbidity and mortality after colorectal operations. Preparation of the surgical site with antiseptic solutions is an essential part of wound infection prevention. To date, there is no universal consensus regarding which preparation is most efficacious. OBJECTIVE: This study compared 2.0% chlorhexidine with 70.0% Isopropyl Alcohol versus 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol and Alcohol-based versus nonAlcohol-based skin preparations with regard to efficacy in preventing postoperative wound infections. DESIGN: This is a retrospective study from 2 prospectively collected statewide databases combined. A propensity score model was used to adjust for differences between the groups in patient demographics, characteristics, comorbidities, and laboratory values. SETTINGS: The multicenter data set used in this analysis represents a variety of academic and community hospitals within the state of Michigan from January 2010 through June 2012. PATIENTS: Patients over the age of 18 years who underwent clean-contaminated colorectal operations were included. MAIN OUTCOME MEASURES: The incidence of superficial surgical site infections, any surgical site infection, any wound complication, and readmission within 30 days for surgical site infection were measured. RESULTS: When 2.0% chlorhexidine with 70.0% Isopropyl Alcohol (n = 425) and 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol (n = 115) were compared, a total of 540 colorectal cases met inclusion criteria. When Alcohol-based (n = 610) and nonAlcohol-based (n = 177) skin preparations were compared, a total of 787 colorectal cases met inclusion criteria. There was no significant difference in the propensity-adjusted odds for having any of the 4 outcomes of interest when comparing 2.0% chlorhexidine with 70.0% Isopropyl Alcohol to 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol and when comparing Alcohol-based with nonAlcohol-based skin preparations. LIMITATIONS: This was a nonrandomized study performed retrospectively based on data collected within the state of Michigan. CONCLUSIONS: The use of 2.0% chlorhexidine with 70.0% Isopropyl Alcohol versus 0.7% iodine povacrylex with 74.0% Isopropyl Alcohol or Alcohol-based versus nonAlcohol-based skin preparations does not significantly influence the incidence of surgical site infections or readmission within 30 days for surgical site infection after clean-contaminated colorectal operations.
