System and method for distillation
AssigneePraj Industries Limited
InventorsGhansham Baburao Deshpande, Ajit Prabhakar Deshmukh
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Abstract
The present invention relates to a system and method for distillation to reduce steam consumption has been disclosed. The system comprises of an analyser column 11, multiple pressure booster units (fan set-I 79, fan set-II 24, and fan set-III 29), a rectifier column 15, a plurality of evaporator units (30,12), a splitter unit 05, a plurality of de-superheating units (03, 80), and additional DDGS dryer unit 25. The integration of pressure booster units (fan set-I 79, fan set-II 24, and fan set-III 29) and additional DDGS dryer unit 05 increases the steam (vapor) production and reduces the steam (vapor) consumption in the system from external source and balances the optimization of process energy requirements, energy cost, and process carbon intensity.
Claims19
A system for ethanol separation, the system comprising:
- an analyzer unit configured to produce a stripped vapor stream from a feed stream, wherein the stripped vapor stream includes ethanol and water;
- one or more first compressors configured to compress the stripped vapor stream to produce a first compressed vapor stream;
- a rectifier unit configured to receive the first compressed vapor stream and to produce a rectified vapor stream;
- a first evaporator configured to receive the rectified vapor stream and to form an evaporator vapor stream and a condensate stream;
- and
- one or more second compressors configured to compress the evaporator vapor stream to form a second compressed stream.
A system for ethanol separation, the system comprising:
- an analyzer unit configured to produce a stripped vapor stream from a feed stream, wherein the stripped vapor stream includes ethanol and water;
- one or more first compressors configured to compress the stripped vapor stream to produce a first compressed vapor stream;
- a rectifier unit configured to receive the first compressed vapor stream and to produce a rectified vapor stream;
- and
- a first evaporator configured to receive the rectified vapor stream and to form an evaporator vapor stream and a condensate stream,
- wherein the evaporator vapor stream is utilized in one or more downstream processing units to form saturated water vapor, wherein the saturated water vapor is utilized as a heat source for one or more of a second evaporator, the analyzer unit, an exhaust column in fluid communication with the rectifier unit, and a dehydration system,
- wherein the condensate stream is transferred to at least one of the rectifier unit and a dehydration system.
A method of ethanol purification, the method comprising:
- processing a feed stream including fermented wash to form a stripped vapor stream, wherein the stripped vapor stream includes ethanol and water;
- compressing the stripped vapor stream to produce a first compressed vapor stream;
- processing the first compressed vapor stream in a rectifier unit to form a rectified vapor stream;
- processing the rectified vapor stream to form an evaporator vapor stream and a condensate stream;
- and
- compressing the evaporator vapor stream and a purified vapor stream from a scrubbing unit to form a second compressed stream, wherein the scrubbing unit includes a scrubber.
Dependencies are inferred from the claim text.