Method and system for removing hydrogen sulfide from sour oil and sour water
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C02F-001/20
B01D-019/00
B03C-005/02
C10G-031/08
C10G-021/30
C10G-021/16
C02F-101/10
C02F-001/66
C02F-101/32
출원번호
US-0646153
(2017-07-11)
등록번호
US-9938163
(2018-04-10)
발명자
/ 주소
Brenize, Galen
Morris, Jeffrey Blair
출원인 / 주소
Anschutz Exploration Corporation
대리인 / 주소
Sheridan Ross P.C.
인용정보
피인용 횟수 :
0인용 특허 :
228
초록▼
Embodiments of the present invention are generally related to a system and method to remove hydrogen sulfide from sour water and sour oil. In particular, hydrogen sulfide is removed from sour water and sour oil without the need for special chemicals, such as catalyst chemicals, scavenger chemicals,
Embodiments of the present invention are generally related to a system and method to remove hydrogen sulfide from sour water and sour oil. In particular, hydrogen sulfide is removed from sour water and sour oil without the need for special chemicals, such as catalyst chemicals, scavenger chemicals, hydrocarbon sources, or a large scale facility. The system and method in the present invention is particularly useful in exploratory oil and gas fields, where large facilities to remove hydrogen sulfide may be inaccessible. The present invention addresses the need for safe and cost effective transport of the deadly neurotoxin. Particular embodiments involve a system and method that can be executed both on a small and large scale to sweeten sour water and sour oil.
대표청구항▼
1. A method for removing hydrogen sulfide from crude oil and water comprising: filling a first container with water;filling a second container with crude oil and water, wherein the crude oil comprises hydrogen sulfide;distributing air in a first stream from a device that can create airflow to the fi
1. A method for removing hydrogen sulfide from crude oil and water comprising: filling a first container with water;filling a second container with crude oil and water, wherein the crude oil comprises hydrogen sulfide;distributing air in a first stream from a device that can create airflow to the first container, using a first connection running from the device to the first container, wherein a distal end of the first connection comprises at least one opening;collecting air in a space located within the first container, the collected air comprising hydrogen sulfide;transferring the collected air from the space through a connection to an air compartment;distributing air in a second stream from the device to the air compartment using a second connection running from the device to the air compartment;mixing the second stream and the collected air to form an air mixture;removing the air mixture from the air compartment;distributing water from the first container to the second container;measuring the amount of hydrogen sulfide in the crude oil within the second container;continuing to distribute water from the first container to the second container; returning water from the second container to the first container;continuing to distribute air in the second stream from the device to the first container;continuing to transfer air from the space from the air compartment;continuing to measure the amount of hydrogen sulfide in the air mixture;wherein the water is fresh and the crude oil is transferred to at least one of a vehicle, a rail car and a ship. 2. The method of claim 1, wherein the removed air is flared. 3. The method of claim 1, further comprising maintaining the temperature of the sour crude oil above 45 degrees Fahrenheit. 4. The method of claim 1, wherein when the amount of hydrogen sulfide in the crude oil in the second storage device is below a predetermined amount, transferring the crude oil out of the second storage device. 5. The method of claim 1, further comprising maintaining the pH of said water at 7.0 or below. 6. The method of claim 1, wherein the water distributed from the first container to the second container is distributed at an upper portion of the second container. 7. A method for removing hydrogen sulfide from an emulsion of water and crude oil, comprising: receiving, from a well production site, a well production stream comprising sour gas and sour crude oil;separating the well production stream into at least sour gas and an emulsion of sour water and sour crude oil, wherein the emulsion comprises hydrogen sulfide;treating the emulsion to remove at least a substantial portion of the hydrogen sulfide, the treating comprising:filling a first storage device with water;filling a second storage device with the emulsion;distributing air in a first stream from a device that can create airflow to the first container, using a first connection running from the device to the first container, wherein the first connection comprises at least one opening;collecting air in a space located within the first container, the collected air comprising hydrogen sulfide;transferring the collected air from the space through a connection to an air compartment;distributing air in a second stream from the device to the air compartment using a second connection running from the device that can create airflow to the air compartment;mixing the second stream and the collected air to form an air mixture;removing the air mixture from the air compartment;distributing water from the first container to the second container; measuring the amount of hydrogen sulfide in the sour crude oil within the second container;continuing to distribute water from the first container to the second container until the amount of hydrogen sulfide in the sour crude oil in the second container is below a desired amount;returning water from the second container to the first container;continuing to distribute air in the second stream from the device to the first container;continuing to transfer air from the space from the air compartment; andcontinuing to measure the amount of hydrogen sulfide in the air mixture;wherein the water is fresh; and further comprising maintaining the pH of said water at 7.0 or below. 8. The method of claim 7, wherein the removed air is at least one of released to the atmosphere and flared. 9. The method of claim 7, wherein the removed air mixture is stored. 10. The method of claim 7, wherein when the amount of hydrogen sulfide in the crude oil in said second storage device is below a desired amount, transferring the crude oil out of the second storage device. 11. The method of claim 7, wherein the sour crude oil is transferred to at least one of a vehicle, a rail car and a ship. 12. The method of claim 7, further comprising maintaining the temperature of the sour crude oil above 45 degrees Fahrenheit. 13. A method for removing hydrogen sulfide from sour crude oil, comprising: a) combining an amount of sour crude oil with water to form an amount of a first H2S water having hydrogen sulfide contained therein;b) after said step of combining, separating the first H2S water from the sour crude oil;c) treating the first H2S water to remove a substantial portion of hydrogen sulfide contained therein by bubbling air up through the first H2S water, thereby generating an amount of a second H2S water having less H2S than said first H2S water;d) collecting the air after it has bubbled through the first H2S water, the collected air comprising hydrogen sulfide;e) mixing the collected air with a stream of fresh air to form an air mixture that contains less H2S than the collected air; andf) combining the second H2S water with the sour crude oil, and repeating steps (c-f) until the amount of hydrogen sulfide in the sour crude oil is below a predetermined amount. 14. The method as set forth in claim 13, further comprising maintaining the pH of the water at 7.0 or below. 15. The method as set forth in claim 13, further comprising venting the air mixture to the environment. 16. The method as set forth in claim 13, further comprising measuring the amount of H2S in the second H2S water. 17. The method as set forth in claim 14, further comprising measuring the amount of H2S in the collected air. 18. The method as set forth in claim 14, further comprising maintaining the temperature of the sour crude oil above 45 degrees Fahrenheit. 19. The method as set forth in claim 14, wherein the method is carried out under atmospheric pressure. 20. The method of claim 13, wherein the sour crude oil is transferred to at least one of a vehicle, a rail car and a ship.
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