Dynamics of Continuous Countercurrent Mass-Transfer         Processes
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'Jeffrey Foltz', 'PO_EMAI': 'jfoltz@nsf.gov', 'PO_PHON': '7032924231'}
The proposed research is aimed at developing a theory for                       predicting the dynamic behavior of countercurrent mass-transfer                 columns.  All previous models are aimed at predicting the                       steady-state behavior.  The theoretical development will begin                  with a single component and with finite mass transfer rates to be               followed by multicomponent mixtures.  Experiments will be                       conducted on countercurrent packed-column extraction, with                      concentration disturbances.  The effects of reflux on                           the column dynamics and on the stability will then be analyzed.                                                                                                 The dynamic analysis results will be useful in process design and               in the control of a host of countercurrent mass-transfer                        operations, such as distillation, adsorption, absorption, and                   extraction.
{'FirstName': 'Friedrich', 'LastName': 'Helfferich', 'PI_MID_INIT': 'G', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Friedrich G Helfferich', 'EmailAddress': None, 'NSF_ID': '000106672', 'StartDate': '11/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Pennsylvania State Univ University Park', 'CityName': 'UNIVERSITY PARK', 'ZipCode': '168021503', 'PhoneNumber': '8148651372', 'StreetAddress': '201 OLD MAIN', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Pennsylvania', 'StateCode': 'PA', 'CONGRESSDISTRICT': '15', 'CONGRESS_DISTRICT_ORG': 'PA15', 'ORG_UEI_NUM': 'NPM2J7MSCF61', 'ORG_LGL_BUS_NAME': 'THE PENNSYLVANIA STATE UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1417', 'Text': 'Interfacial Engineering Progra'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8715263.xml'}