# US 2019/0168417 A1 · Simultaneous cement enhancement and carbon dioxide utilization by mounting a carbon dioxide capture system onboard a concrete mixer vehicle

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- Number: US 2019/0168417 A1
- Document ID: US20190168417A1
- Status: Published application
- Kind: A1
- Application number: 15/828,839
- Filed: 2017-12-01
- Published: 2019-06-06
- Earliest claimed: 2017-12-01
- Assignees: Saudi Arabian Oil Compay
- Applicants: Saudi Arabian Oil Company
- Inventors: Bandar Fadhel; Ahmad D. Hammad; Issam T. Amr; Rami A. Bamagain
- Web page: https://patentgrep.com/patent/US20190168417A1

## CPC

- B28C 5/42: Apparatus specially adapted for being mounted on vehicles with provision for mixing during transport ({B28C5/1893 takes precedence; mounted on a wheelbarrow B28C5/1215, B28C5/1818, B28C5/2018; } vehicle aspect B60P3/16)
- B01D 53/02: by adsorption, e.g. preparative gas chromatography {(solid sorbent compositions B01J20/00, preparation of inorganic compounds or elements C01)}
- B01D 53/1475: {Removing carbon dioxide}
- B01D 53/62: Carbon oxides
- B28C 5/4203: {Details; Accessories}
- B28C 5/46: Arrangements for applying super- or sub-atmospheric pressure during mixing; Arrangements for cooling or heating during mixing {, e.g. by introducing vapour}
- B28C 7/0046: {Storage or weighing apparatus for supplying ingredients (B28C7/04 takes precedence)}
- B28C 7/04: Supplying or proportioning the ingredients {(B28C7/022 takes precedence; forming a predetermined ratio of the components to be mixed, in general B01F35/80)}
- C04B 28/10: Lime cements or magnesium oxide cements
- C04B 40/0091: {Processes of mixing characterised by carbon dioxide treatment}
- B01D 2251/604: Hydroxides
- B01D 2251/606: Carbonates
- B01D 2252/102: Ammonia
- B01D 2252/204: Amines
- B01D 2253/102: Carbon
- B01D 2253/108: Zeolites
- B01D 2253/204: Metal organic frameworks (MOF's)
- B01D 2257/504: Carbon dioxide
- C04B 2111/00019: {Carbon dioxide sequestration}
- Y02C 20/40: of CO2
- Y02P 40/18: Carbon capture and storage [CCS]
- B28C: PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER (preparing material for foundry moulds B22C5/00)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)
- C04B: LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE {(roofing granules E04D7/005)}; CERAMICS (devitrified glass-ceramics C03C10/00); REFRACTORIES; TREATMENT OF NATURAL STONE
- Y02C: CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## Abstract

A vehicle CO2 capture and utilization system includes a concrete mixer vehicle and a vehicle exhaust capture system. The concrete mixer vehicle comprises a vehicle exhaust and a mixer tank. The vehicle exhaust capture system is located onboard the concrete mixer vehicle. Additionally, the vehicle exhaust capture system includes one or more fluid pathways that fluidly couple the vehicle exhaust and the mixer tank.

## Claims

### Claim 1

A vehicle CO2 capture and utilization system comprising a concrete mixer vehicle and a vehicle exhaust capture system; wherein:
the concrete mixer vehicle comprises a vehicle exhaust and a mixer tank;
the vehicle exhaust capture system is located onboard the concrete mixer vehicle; and
the vehicle exhaust capture system comprises one or more fluid pathways that fluidly couple the vehicle exhaust and the mixer tank.

### Claim 2 (depends on 1)

The vehicle CO2 capture and utilization system of claim 1, wherein the mixer tank houses an uncured cementitious material mixture and when the concrete mixer vehicle generates CO2 emission, at least a portion of CO2 emission generated by the concrete mixer vehicle and output by the vehicle exhaust is introduced into the mixer tank and mixes with the uncured cementitious material mixture thereby carbonizing the uncured cementitious material mixture and forming CaCO3 in the mixer tank.

### Claim 3 (depends on 1)

The vehicle CO2 capture and utilization system of claim 1, wherein:
the vehicle exhaust capture system further comprises a CO2 capture unit that is fluidly coupled to the vehicle exhaust and the mixer tank using the one or more fluid pathways; and
the CO2 capture unit is located onboard the concrete mixer vehicle and is structurally configured capture CO2.

### Claim 4 (depends on 3)

The vehicle CO2 capture and utilization system of claim 3, wherein the CO2 capture unit comprises a housing and one or more carbon capturing structures located within the housing.

### Claim 5 (depends on 4)

The vehicle CO2 capture and utilization system of claim 4, wherein the one or more carbon capturing structures comprise amines, carbonate, ammonia, hydroxide, activated carbons, zeolites, metal organic frameworks, mesoporous structures, carbon capture filters, fibers, microporous structures, or a combination thereof.

### Claim 6 (depends on 4)

The vehicle CO2 capture and utilization system of claim 4, wherein the one or more carbon capturing structures are configured to capture CO2 via adsorption, absorption, or a combination thereof.

### Claim 7 (depends on 3)

The vehicle CO2 capture and utilization system of claim 3, wherein:
the one or more fluid pathways comprise a first fluid pathway extending from the vehicle exhaust to the CO2 capture unit and a second fluid pathway extending from the CO2 capture unit to the mixer tank;
a flow generation unit is fluidly coupled to the second fluid pathway; and
the flow generation unit is structurally configured to generate fluid flow from the CO2 capture unit to the mixer tank.

### Claim 8 (depends on 7)

The vehicle CO2 capture and utilization system of claim 7, wherein the flow generation unit comprises a mass flow controller.

### Claim 9 (depends on 1)

The vehicle CO2 capture and utilization system of claim 1, wherein the vehicle exhaust capture system comprises a CO2 storage tank fluidly coupled to the vehicle exhaust and located onboard the concrete mixer vehicle.

### Claim 10 (depends on 9)

The vehicle CO2 capture and utilization system of claim 9, wherein:
the vehicle exhaust capture system further comprises a CO2 capture unit that is fluidly coupled to the vehicle exhaust, the mixer tank, and the CO2 storage tank using the one or more fluid pathways; and
the CO2 capture unit is located on the concrete mixer vehicle and is structurally configured capture CO2.

### Claim 11 (depends on 10)

The vehicle CO2 capture and utilization system of claim 10, wherein:
a fluid pathway extends between and fluidly couples the CO2 capture unit and the CO2 storage tank; and
a flow generation unit is fluidly coupled to the fluid pathway that extends between and fluidly couples the CO2 capture unit and the CO2 storage tank and is structurally configured to generate fluid flow from the CO2 capture unit to the CO2 storage tank.

### Claim 12 (depends on 10)

The vehicle CO2 capture and utilization system of claim 10, wherein:
a fluid pathway extends between and fluidly couples the CO2 storage tank and the mixer tank; and
a flow generation unit is fluidly coupled to the fluid pathway that extends between and fluidly couples the CO2 storage tank and the mixer tank and is structurally configured to generate fluid flow from the CO2 storage tank to the mixer tank.

### Claim 13 (depends on 1)

The vehicle CO2 capture and utilization system of claim 1, further comprising an auxiliary exhaust capture system that comprises one or more fluid pathways fluidly coupled to a pump exhaust of a concrete pump.

### Claim 14 (depends on 13)

The vehicle CO2 capture and utilization system of claim 13, wherein the one or more fluid pathways of the auxiliary exhaust capture system fluidly couple the pump exhaust to the mixer tank.

### Claim 15 (depends on 13)

The vehicle CO2 capture and utilization system of claim 13, wherein the one or more fluid pathways of the auxiliary exhaust capture system fluidly couple the pump exhaust to a CO2 storage tank, a the CO2 storage tank, or both.

### Claim 16

A vehicle CO2 capture and utilization system comprising a concrete mixer vehicle and a vehicle exhaust capture system; wherein:
the concrete mixer vehicle comprises a combustion engine, a vehicle exhaust, and a mixer tank;
the vehicle exhaust capture system comprises one or more fluid pathways that fluidly couple the vehicle exhaust and the mixer tank;
the vehicle exhaust capture system comprises a CO2 capture unit that is located onboard the concrete mixer vehicle and is fluidly coupled to the vehicle exhaust and the mixer tank using the one or more fluid pathways;
the vehicle exhaust capture system comprises a CO2 storage tank that is fluidly coupled to the vehicle exhaust using the one or more fluid pathways and is located onboard the concrete mixer vehicle;
the one or more fluid pathways comprise a first fluid pathway extending from the vehicle exhaust to the CO2 capture unit, a second fluid pathway extending from the CO2 capture unit to the mixer tank, and a third fluid pathway extending from the CO2 capture unit to the CO2 storage tank;
a first flow generation unit is fluidly coupled to the second fluid pathway and is structurally configured to generate fluid flow from the CO2 capture unit to the mixer tank; and
a second flow generation unit is fluidly coupled to the third fluid pathway and is structurally configured to generate fluid flow from the CO2 capture unit to the CO2 storage tank.

### Claim 17

A method of carbonizing a cementitious material mixture, the method comprising
generating CO2 emission using a concrete mixer vehicle, the concrete mixer vehicle comprising a vehicle exhaust and a mixer tank, wherein the mixer tank houses an uncured cementitious material mixture; and
introducing at least a portion of the CO2 emission generated by the concrete mixer vehicle and output by the vehicle exhaust into the mixer tank via one or more fluid pathways fluidly coupled to the vehicle exhaust and the mixer tank, such that CO2 mixes with the uncured cementitious material mixture thereby carbonizing the uncured cementitious material mixture and forming CaCO3 in the mixer tank.

### Claim 18 (depends on 17)

The method of claim 17, further comprising:
capturing the CO2 emission generated by the concrete mixer vehicle using a CO2 capture unit fluidly coupled to the vehicle exhaust by a first fluid pathway of the one or more fluid pathways; and
releasing at least a portion of the CO2 emission captured by the CO2 capture unit from the CO2 capture unit into a second fluid pathway fluidly coupled to the CO2 capture unit and the mixer tank thereby introducing CO2 into the mixer tank.

### Claim 19 (depends on 18)

The method of claim 18, wherein releasing the CO2 emission comprises generating a fluid flow within the second fluid pathway having a fluid flow rate greater than a release fluid flow rate using a flow generation unit fluidly coupled to the second fluid pathway such CO2 captured within the CO2 capture unit flows from the CO2 capture unit into the mixer tank.

### Claim 20 (depends on 17)

The method of claim 17, further comprising storing at least a portion of the CO2 emission generated by the concrete mixer vehicle in a CO2 storage tank fluidly coupled to the vehicle exhaust.
