METHOD & PROCESS PRINCIPLE
Multi-column rectification uses controlled reflux, hydroselection and impurity side-draws to separate aldehydes, methanol, fusel oils and water from crude ethyl alcohol.
BIOETHANOL PROCESS UNITS
Ethyl Alcohol Rectification Unit
Purifies crude ethyl alcohol by controlled rectification, hydroselection and impurity side-draws to produce ENA, Suma or technical alcohol at the specified grade.
MAIN EQUIPMENT & PACKAGE LIMITS
Rectification column, hydroselection column, aldehyde and fusel-oil sections, reboilers, condensers, decanters, reflux drums and transfer pumps.
CRITICAL DESIGN INPUTS
Crude alcohol composition and strength, aldehyde, methanol and higher-alcohol content, required ENA/Suma/technical-alcohol grade, daily capacity, utility conditions and permitted by-product limits.
ENGINEERING DELIVERABLES
Design Basis, material balance, PFD, P&ID, equipment and instrument datasheets, line/equipment lists, control narrative, cause-and-effect, layout/3D interfaces, inspection plan, operating and commissioning procedures.
AUTOMATION, SAFETY & HSE
Closed handling, relief/vent/drain routing, alarms and trips, hazardous-area classification, HAZOP actions, maintainable isolation, fire protection and emergency shutdown interfaces.
APPLICATIONS & PERFORMANCE BASIS
ENA, Suma and technical ethyl-alcohol rectification and purification.
CODES, STANDARDS & QUALITY BASIS
ASME/TEMA, IEC/NFPA, alcohol product test standards ASTM/EN/DIN/GOST as specified.
CONTRACTUAL CODE BASIS
ASME/TEMA, IEC/NFPA, alcohol product test standards ASTM/EN/DIN/GOST as specified.