# US 12,600,913 B2 · Liquid based chemical compositions and treatment systems and treatment methods using same for reducing sulfur content in hydrocarbon based liquids including crude oil

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,600,913 B2
- Document ID: US12600913B2
- Status: Granted
- Kind: B2
- Application number: 18/515,969
- Filed: 2023-11-21
- Published: 2024-05-23
- Granted: 2026-04-14
- Earliest claimed: 2022-11-22
- Assignees: Gaps Technology, LLC.
- Applicants: Gaps Technology, LLC
- Inventors: Cliffton Lee Roe
- Web page: https://patentgrep.com/patent/US12600913B2

## CPC

- C10G 19/02: with aqueous alkaline solutions
- C10G 2300/202: Heteroatoms content, i.e. S, N, O, P
- 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 treatment composition for being added to petroleum based liquids for reducing total sulfur content in the petroleum based liquids, comprising: sodium sulfide and at least one hydroxide compound. A dosage of the treatment composition may be added to liquids containing sulfur, including crude oil and distillates of crude oil and then allowed to react with such liquids over a period of time, e.g., hours or days. By such reaction total sulfur content of the liquids may be reduced by more than 50%.

## Claims

### Claim 1

A treatment composition for being added to petroleum based liquids for reducing total sulfur content in the petroleum based liquids, comprising: sodium sulfide, water and at least one hydroxide compound.

### Claim 2 (depends on 1)

The treatment composition according to claim 1, further including at least one polar solvent into which the sodium sulfide, water and the at least one hydroxide compound are dissolved or dispersed.

### Claim 3 (depends on 2)

The treatment composition according to claim 2, wherein the sodium sulfide constitutes 3-20 wt % of the composition, the at least one hydroxide compound constitutes 5-25 wt % of the treatment composition, the at least one polar solvent constitutes 55-92 wt % of the treatment composition, and a pH of the treatment composition is at least 12.5.

### Claim 4 (depends on 2)

The treatment composition according to claim 2, wherein the at least one polar solvent includes at least one of polar hydrocarbon based liquid(s), including alcohols, toluene, hexane, xylene, and mixtures thereof.

### Claim 5

A treatment process for reducing total sulfur content in a petroleum based liquid, comprising steps of: dissolving sodium sulfide and at least one hydroxide compound in water to form an aqueous solution; adding the aqueous solution to the petroleum based liquid, wherein a dosage amount of sodium sulfide is 0.01 to 5.0 g per liter of the petroleum based liquid and a total dosage amount of the at least one hydroxide compound is in a range of 0.01 to 5.0 g per liter of the petroleum based liquid; of dispersing the aqueous solution into the petroleum based liquid; and allowing the sodium sulfide and the at least one hydroxide compound to react with the petroleum based liquid.

### Claim 6 (depends on 5)

The treatment process according to claim 5, further comprising the step of adding at least one polar solvent to the aqueous solution before the aqueous solution is added into the petroleum based liquid.

### Claim 7 (depends on 6)

The treatment process according to claim 6, wherein the at least one polar solvent includes at least one of polar hydrocarbon based liquid(s), including alcohols, toluene, hexane, xylene, and mixtures thereof.

### Claim 8 (depends on 6)

The treatment process according to claim 6, wherein the step of allowing the sodium sulfide and the at least one hydroxide compound to react with the petroleum based liquid is performed at standard temperature and pressure.