IPC분류정보
국가/구분 |
United States(US) Patent
등록
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국제특허분류(IPC7판) |
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출원번호 |
US-0962784
(2001-09-25)
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발명자
/ 주소 |
- Eaton, Gerald B.
- Monahan, Michael J.
- Ebert, Alan K.
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출원인 / 주소 |
- Energy & Environmental International, L.C.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
0 인용 특허 :
123 |
초록
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A composition including a polyalphaolefin and at least one alpha olefin monomer partitioning agent that function as drag reducing agents and a process for the preparation of the drag reducing agents are disclosed. The process includes the steps of contacting alpha olefin monomers with at least one c
A composition including a polyalphaolefin and at least one alpha olefin monomer partitioning agent that function as drag reducing agents and a process for the preparation of the drag reducing agents are disclosed. The process includes the steps of contacting alpha olefin monomers with at least one catalyst in a reactant mixture to form a polyalphaolefin. The reactant mixture may include at least one alpha olefin partitioning agent or the at least one alpha olefin partitioning agent may be mixed with the polyalphaolefin after polymerization. The alpha olefin monomer partitioning agents are alpha olefin monomers that are solid at ambient temperatures. Preferably, the alpha olefin monomers are selected from the group consisting of C 20 -C 60 alpha olefin monomers. A process for reducing drag in a conduit is also disclosed.
대표청구항
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1. A process for reducing drag in a conduit, comprising:forming a drag reducing agent comprising a polyalphaolefin and at least one alpha olefin monomer partitioning agent, wherein the drag reducing agent is formed by contacting alpha olefin monomers with at least one catalyst in a reactant mixture,
1. A process for reducing drag in a conduit, comprising:forming a drag reducing agent comprising a polyalphaolefin and at least one alpha olefin monomer partitioning agent, wherein the drag reducing agent is formed by contacting alpha olefin monomers with at least one catalyst in a reactant mixture, polymerizing the alpha olefin monomers, wherein during the polymerization at least a portion of the alpha olefin monomers polymerize in the reactant mixture to provide a polyalphaolefin, and adding to the reactant mixture at least one alpha olefin monomer partitioning agent, wherein the at least one alpha olefin monomer partitioning agent is selected from the group consisting of C 20 , C 21 , C 22 , C 23 , C 24 , C 25 , C 26 , C 27 , C 28 , C 29 , C 30 , C 31 , C 32 , C 33 , C 34 , C 35 , C 36 , C 37 , C 38 , C 39 , C 40 , C 41 , C 42 , C 43 , C 44 , C 45 , C 46 , C 47 , C 48 , C 49 , C 50 , C 51 , C 52 , C 53 , C 54 , C 55 , C 56 , C 57 , C 58 , C 59 , and C 60 alpha olefin monomers, and mixtures thereof; andintroducing the drag reducing agent into the conduit. 2. The process of claim 1, wherein the at least one alpha olefin monomer partitioning agent includes C 30 alpha olefin monomer. 3. The process of claim 2, wherein during the polymerization substantially all of the alpha olefin monomers polymerize in the reactant mixture to provide the polyalphaolefin. 4. The process of claim 3, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 5. The process of claim 4, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 6. The process of claim 1, wherein during the polymerization substantially all of the alpha olefin monomers polymerize in the reactant mixture to provide a polyalphaolefin. 7. The process of claim 6, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 8. The process of claim 7, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 9. The process of claim 1, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 10. The process of claim 9, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 11. A process for forming a drag reducing agent comprising a polyalphaolefin and at least one alpha olefin monomer partitioning agent, the process comprising:contacting alpha olefin monomers with at least one catalyst in a reactant mixture;polymerizing the alpha olefin monomers, wherein during the polymerization at least a portion of the alpha olefin monomers polymerize in the reactant mixture to provide a polyalphaolefin; andadding to the reactant mixture at least one alpha olefin monomer partitioning agent, wherein the at least one alpha olefin monomer partitioning agent is selected from the group consisting of C 20 , C 21 , C 22 , C 23 , C 24 , C 25 , C 26 , C 27 , C 28 , C 29 , C 30 , C 31 , C 32 , C 33 , C 34 , C 35 , C 36 , C 37 , C 38 , C 39 , C 40 , C 41 , C 42 , C 43 , C 44 , C 45 , C 46 , C 47 , C 48 , C 49 , C 50 , C 51 , C 52 , C 53 , C 54 , C 55 , C 56 , C 57 , C 58 , C 59 , and C 60 alpha olefin monomers, and mixtures thereof. 12. The process of claim 11, wherein the at least one alpha olefin monomer partitioning agent includes C 30 alpha olefin monomer. 13. The process of claim 12, wherein during the polymerization substantially all of the alpha olefin monomers polymerize in rho reactant mixture to pro vide a polyalphaolefin. 14. The process of claim 13, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 15. The process of claim 14, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 16. The process of claim 11, wherein during the polymerization substantially all of the alpha olefin monomers polymerize in the reactant mixture to provide a polyalphaolefin. 17. The process of claim 16, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 18. The process of claim 17,further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 19. The process of claim 11, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 20. The process of claim 19, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 21. The process of claim 11, wherein the at least one alpha olefin monomer partitioning agent is added to the reactant mixture after substantially all of the alpha olefin monomers polymerize in the reactant mixture to provide the polyalphaolefin. 22. The process of claim 21, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 23. The process of claim 22, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 24. The process of claim 11, wherein the at least one alpha olefin monomer partitioning agent is C 30 alpha olefin monomer. 25. The process of claim 24, wherein the at least one alpha olefin monomer partitioning agent is added to the reactant mixture after substantially all of the alpha olefin monomers polymerize in the reactant mixture to provide the polyalphaolefin. 26. The process of claim 25, further comprising the step of cryogrinding the polyalphaolefin and the at least one alpha olefin monomer partitioning agent. 27. The process of claim 26, further comprising the step of mixing the cryoground polyalphaolefin and the at least one alpha olefin monomer partitioning agent with a suspending component to form a drag reducing agent slurry. 28. The process of claim 11, wherein the at least one alpha olefin monomer partitioning agent is added to the reactant mixture after polymerization is completed. 29. The process of claim 11, wherein polymerization of the alpha olefin monomers is halted prior to the addition of the at least one alpha olefin monomer partitioning agent.
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