US 12,654,125 B1Granted

Forming and processing slurry in carbon dioxide capture and separation systems

AssigneeAirMyne, Inc.

InventorsCyndia Aiyun Cao, Abdullah Fattahi, Bart Ludo Scherpbier, Flynn Corrigan Michael Legg, Derek Chase Popple, Ngoc The Pham, Mark Patrick Cyffka, Sudip Mukhopadhyay

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Abstract

In a general aspect, a carbon dioxide (CO2) capture and separation system is presented. In some implementations, a carbon dioxide capture and separation system includes a slurry processing system fluidically connected to first and second gas-liquid contactors. The slurry processing system includes a gravity-driven separation unit. The slurry processing system is configured to receive a CO2-rich slurry including precipitated reaction products from the first gas-liquid contactor, form a solid-enriched CO2-rich slurry and a clarified CO2-lean solution based on the CO2-rich slurry. The first gas-liquid contactor is configured to receive a gaseous feed and receive the clarified CO2-lean solution from the slurry processing system. The clarified CO2-lean solution captures CO2 from the gaseous feed in the first gas-liquid contactor to form the CO2-rich slurry. The second gas-liquid contactor is configured to receive the solid-enriched CO2-rich slurry and extract CO2 from the solid-enriched CO2-rich slurry.

Claims30

Dependent claims

A carbon dioxide capture and separation system comprising:

a slurry processing system configured to receive a CO2-rich slurry comprising precipitated reaction products from a first gas-liquid contactor in a first mixed stream, the slurry processing system comprising a gravity-driven separation unit, the gravity-driven separation unit fluidically connected to the first gas-liquid contactor and configured to:
form a solid-enriched CO2-rich slurry in a second mixed stream based on the CO2-rich slurry, the solid-enriched CO2-rich slurry having a higher concentration of precipitated reaction products than that of the CO2-rich slurry received in the first mixed stream, and
form a clarified CO2-lean solution in a first solution stream based on the CO2-rich slurry, the clarified CO2-lean solution having a lower concentration of precipitated reaction products than that of the CO2-rich slurry received in the first mixed stream;
the first gas-liquid contactor fluidically connected to the slurry processing system and configured to:
receive a gaseous feed, and
receive the clarified CO2-lean solution in the first solution stream from the slurry processing system, wherein the clarified CO2-lean solution captures CO2 from the gaseous feed to form the CO2-rich slurry;
and
a second gas-liquid contactor fluidically connected to the slurry processing system and configured to:
receive the solid-enriched CO2-rich slurry in the second mixed stream;
and
extract CO2 from the solid-enriched CO2-rich slurry.

8 more elements

A carbon dioxide capture and separation method, comprising:

directing a CO2-rich slurry from a first gas-liquid contactor to a slurry processing system in a first mixed stream, the CO2-rich slurry comprising precipitated reaction products, the slurry processing system comprising a gravity-driven separation unit;
by operation of the gravity-driven separation unit of the slurry processing system,
forming a solid-enriched CO2-rich slurry in a second mixed stream based on the CO2-rich slurry, the solid-enriched CO2-rich slurry having a higher concentration of precipitated reaction products than that of the CO2-rich slurry in the first mixed stream;
and
forming a clarified CO2-lean solution in a first solution stream based on the CO2-rich slurry, the clarified CO2-lean solution having a lower concentration of precipitated reaction products than that of the CO2-rich slurry in the first mixed stream;
directing the clarified CO2-lean solution to the first gas-liquid contactor fluidically connected to the slurry processing system;
forming, by operation of the first gas-liquid contactor, the solid-enriched CO2-rich slurry by interacting a gaseous feed with the clarified CO2-lean solution such that the clarified CO2-lean solution captures CO2 from the gaseous feed;
directing the solid-enriched CO2-rich slurry to a second gas-liquid contactor fluidically connected to the slurry processing system;
and
extracting, by operation of the second gas-liquid contactor, CO2 from the solid-enriched CO2-rich slurry.

7 more elements

Dependencies are inferred from the claim text.