Claims
- 1. In a delayed coking process wherein a heated feed stock is fed to a coking drum, the improvement comprising adding to said feed stock a foam controlling amount of an anti-foaming composition comprising a C.sub.6 -C.sub.12 aliphatic alcohol.
- 2. The process of claim 1 wherein said alcohol is 2-ethylhexanol.
- 3. The process of claim 1 wherein said composition comprises a liquid carrier.
- 4. The process of claim 3 wherein said carrier comprises a polyol having the formula: ##STR2## wherein R.sub.1 is hydrogen or a methyl group, R.sub.2 is hydrogen or a methyl group and the sum of x+y is from about 30 to about 45.
- 5. The process of claim 4 wherein R.sub.1 and R.sub.2 are methyl groups.
- 6. The process of claim 1 wherein said alcohol is present in an amount of from about 20 to about 60% by weight.
- 7. In a delayed coking process wherein a heated feed stock is fed to a coking drum, the improvement comprising adding to said feed stock a foam controlling amount of an anti-foaming composition comprising a liquid organo siloxane polymer and a C.sub.6 -C.sub.12 aliphatic alcohol.
- 8. The process of claim 7 wherein said composition includes a liquid carrier.
- 9. The process of claim 8 wherein said carrier comprises a polyol having the formula: ##STR3## wherein R.sub.1 is hydrogen or a methyl group R.sub.2 is hydrogen or methyl group and the sum of x+y is from about 30 to about 45.
- 10. The process of claim 7 wherein said organo siloxane polymer comprises dimethyl polysiloxane.
- 11. The process of claim 7 wherein said alcohol comprises 2-ethylhexanol.
- 12. The method of claim 7 wherein said organo siloxane polymer is present in an amount of from about 0.1 to about 20% by weight.
- 13. The method of claim 7 wherein said alcohol is present in an amount of from about 20 to about 60% by weight.
- 14. The method of claim 9 wherein R.sub.1 and R.sub.2 are methyl groups.
- 15. In a delayed coking process wherein a heated, sulfur contaminated feed stock is fed to a coking drum, the improvement comprising adding to said feed stock a foam controlling amount of an anti-foaming composition comprising a C.sub.6 -C.sub.12 aliphatic alcohol and up to about 20% of a polysiloxane wherein the concentration of polysiloxane is adjusted relative to the sulfur concentration of said feed stock such that at a feed stock sulfur concentration in excess of 1/2 weight % the polysiloxane concentration in said anti-foaming composition is about 0.
Parent Case Info
This is a division of application Ser. No. 201,573, filed Oct. 28, 1980, now abandoned.
US Referenced Citations (5)
Divisions (1)
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Number |
Date |
Country |
Parent |
201573 |
Oct 1980 |
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