Heat integrated process and system for organic solvent production using vapor recompression
AssigneeWhitefox Technologies Limited
InventorsJin Ming ZHOU, Thiago Righi, Chenxu Shi, Stephan BLUM, Virginia Andrade
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Abstract
A distillation and dehydration system is provided that produces an anhydrous organic solvent. The provided system includes vapor recompression (e.g., a mechanical or thermal vapor recompression unit) to recover heat from a rectification-distillation section (e.g., a rectifier/stripper column). The addition of vapor recompression enables further heat recovery within a stream by increasing the condensation temperature and pressure of that stream and later using its latent heat by condensing it.
Claims20
A distillation and dehydration method comprising:
- generating a distillation overhead stream in a distillation system;
- directing the distillation overhead stream to a compression system, yielding a compressed vapor;
- sending the compressed vapor to a condensation system, yielding a condensate stream;
- and
- directing the condensate stream to a separation system.
A distillation and dehydration method, comprising:
- generating a distillation overhead stream in a distillation system;
- directing the distillation overhead stream to a compression system, yielding a compressed vapor;
- sending the compressed vapor to an energy recovery system that generates steam at a first pressure;
- compressing the steam from the first pressure to a second pressure, greater than the first pressure;
- and
- directing the steam at the second pressure to a receiving system.
A heat recovery system, comprising:
- a vapor recompression unit connected on a first low pressure side to an overhead vapor output of a distillation unit and connected on a first high pressure side to a first heat exchanger for a steam condensate vessel;
- and
- a first steam compressor connected on a second low pressure side to a steam outlet of the steam condensate vessel and connected on a second high pressure side to a second heat exchanger for a medium pressure receiving system.
Dependencies are inferred from the claim text.