# US 11,028,337 B1 · Structure including rice hull ash and reinforcing binder for adsorbing contaminants from cooking oil

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- Number: US 11,028,337 B1
- Document ID: US11028337B1
- Status: Granted
- Kind: B1
- Application number: 16/401,295
- Filed: 2019-05-02
- Granted: 2021-06-08
- Earliest claimed: 2014-05-15
- Assignees: FreshFry LLC
- Applicants: FreshFry LLC
- Inventors: Jeremiah Chapman
- Web page: https://patentgrep.com/patent/US11028337B1

## CPC

- C11B 3/10: by adsorption
- B01D 15/267: {using neutral sorbents, e.g. activated carbon or diatomaceous earth}
- B01J 20/103: {comprising silica}
- B01J 20/28004: {Sorbent size or size distribution, e.g. particle size}
- B01J 20/2803: {Sorbents comprising a binder, e.g. for forming aggregated, agglomerated or granulated products}
- B01J 20/2805: {Sorbents inside a permeable or porous casing, e.g. inside a container, bag or membrane}
- B01J 20/3042: {Use of binding agents; addition of materials ameliorating the mechanical properties of the produced sorbent}
- B01J 20/3078: {Thermal treatment, e.g. calcining or pyrolizing}
- B01J 20/3092: {Packing of a container, e.g. packing a cartridge or column (of chromatography columns B01D15/206)}
- C10G 25/003: {Specific sorbent material, not covered by C10G25/02 or C10G25/03}
- B01D 15/00: Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- C10G 2300/202: Heteroatoms content, i.e. S, N, O, P
- C11B: PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES (drying-oils C09F)
- 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)
- B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- C10G: CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas C01B; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution C07C; cracking to cokes C10B); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES

## Abstract

A structure for adsorbing contaminants from cooking oil comprises: an outer shell comprised of a filter material; and an adsorbing mixture comprising rice hull ash blended with a reinforcing binder, wherein the adsorbing mixture is in the form of particles having a particle size from about 0.30 millimeters (300 microns) to about 1.40 millimeters (1400 microns), with an average particle size of about 0.60 millimeters (600 microns) to about 0.70 millimeters (700 microns). The adsorbing mixture is enclosed by the outer shell, such that, in use, cooking oil with the contaminants passes through the outer shell, contacts the adsorbing mixture within the outer shell, and then again passes through the outer shell with substantially fewer contaminants.

## Claims

### Claim 1

A structure for adsorbing contaminants from cooking oil, comprising:
an outer shell comprised of a filter material; and
an adsorbing mixture comprising rice hull ash blended with a reinforcing binder, wherein the adsorbing mixture is in the form of particles having a particle size from about 0.30 millimeters (300 microns) to about 1.40 millimeters (1400 microns), with an average particle size of about 0.60 millimeters (600 microns) to about 0.70 millimeters (700 microns); and
wherein the adsorbing mixture is arranged to be enclosed by the outer shell, such that, in use, cooking oil with the contaminants passes through the outer shell, contacts the adsorbing mixture within the outer shell, and then again passes through the outer shell with substantially fewer contaminants.

### Claim 2 (depends on 1)

The structure as recited in claim 1, wherein the filter material is nonwoven with an approximate weight of about 100 g/m2 to about 150 g/m2.

### Claim 3 (depends on 1)

The structure as recited in claim 1, wherein the adsorbing mixture has a density of between approximately 300 g/l and 600 g/l.

### Claim 4 (depends on 1)

The structure as recited in claim 1, wherein the outer shell encloses approximately 6 ounces of the adsorbing mixture.

### Claim 5 (depends on 1)

The structure as recited in claim 1, wherein the outer shell has dimensions of approximately 5.25 inches by 9.0 inches.

### Claim 6 (depends on 1)

The structure as recited in claim 1, wherein the reinforcing binder is a granular clay.

### Claim 7 (depends on 6)

The structure as recited in claim 6, wherein the granular clay is in a range of 10-50% of the adsorbing mixture by weight.

### Claim 8 (depends on 6)

The structure as recited in claim 6, wherein the granular clay is in a range of 12-35% of the adsorbing mixture by weight.

### Claim 9 (depends on 1)

The structure as recited in claim 1, wherein the adsorbing mixture further comprises a secondary binder.

### Claim 10 (depends on 9)

The structure as recited in claim 9, wherein the secondary binder is sodium carboxymethyl cellulose polymer.

### Claim 11

A structure for adsorbing contaminants from cooking oil, comprising:
an outer shell comprised of a filter material; and
an adsorbing mixture comprising rice hull ash blended with a reinforcing binder, wherein the adsorbing mixture is in the form of particles having a particle size from about 0.30 millimeters (300 microns) to about 1.40 millimeters (1400 microns), with an average particle size of about 0.60 millimeters (600 microns) to about 0.70 millimeters (700 microns);
wherein the adsorbing mixture is arranged to be enclosed by the outer shell, such that, in use, cooking oil with the contaminants passes through the outer shell, contacts the adsorbing mixture within the outer shell, and then again passes through the outer shell with substantially fewer contaminants;
wherein the adsorbing mixture has a density of between approximately 300 g/l and 600 g/l; and
wherein the outer shell encloses approximately 6 ounces of the adsorbing mixture.

### Claim 12 (depends on 11)

The structure as recited in claim 11, wherein the outer shell has dimensions of approximately 5.25 inches by 9.0 inches.

### Claim 13

A structure for adsorbing contaminants from cooking oil, comprising:
an outer shell comprised of a filter material; and
an adsorbing mixture comprising rice hull ash blended with a reinforcing binder, wherein the adsorbing mixture is in the form of particles having a particle size from about 0.30 millimeters (300 microns) to about 1.40 millimeters (1400 microns), with an average particle size of about 0.60 millimeters (600 microns) to about 0.70 millimeters (700 microns);
wherein the reinforcing binder is a granular clay that is in a range of 10-50% of the adsorbing mixture by weight; and
wherein the adsorbing mixture is arranged to be enclosed by the outer shell, such that, in use, cooking oil with the contaminants passes through the outer shell, contacts the adsorbing mixture within the outer shell, and then again passes through the outer shell with substantially fewer contaminants.

### Claim 14 (depends on 13)

The structure as recited in claim 13, wherein the granular clay is in a range of 12-35% of the adsorbing mixture by weight.

### Claim 15 (depends on 13)

The structure as recited in claim 13, wherein the adsorbing mixture further comprises a secondary binder.

### Claim 16 (depends on 14)

The structure as recited in claim 14, wherein the secondary binder is sodium carboxymethyl cellulose polymer.