Claims
- 1. A method for cleaning gas lines in coke oven batteries comprising atomizing a composition into the gas lines of coke oven batteries, where the composition comprises N-methyl-2-pyrrolidone.
- 2. The method of claim 1 where the composition comprises by wt. 60-95% N-methyl-2-pyrrolidone; 28-3.5% High Aromatic Naphtha; 10-1.25% nonionic surfactant; and 2-0.25% polymeric dispersant.
- 3. A method for cleaning gas lines in coke oven batteries comprising atomizing a composition into the gas lines of coke oven batteries, where the composition comprises 60-95 wt. % N-methyl-2-pyrrolidone.
- 4. A method for removing material deposited in coke ovens and coke oven piping and lines comprising
- contacting the deposited material with a composition comprising N-methyl-2-pyrrolidone; and
- removing the material with the composition from the coke ovens, coke oven piping and lines.
- 5. The method of claim 4 where the composition comprises 60-95 wt. % N-methyl-2-pyrrolidone.
- 6. The method of claim 4 where the composition comprises by wt. 60-95% N-methyl-2-pyrrolidone; 28-3.5% High Aromatic Naphtha; 10-1.25% nonionic surfactant; and 2-0.25% polymeric dispersant.
Parent Case Info
This is a continuation of copending application Ser. No. 07/564,895 filed on Aug. 9, 1990, now abandoned.
US Referenced Citations (6)
Continuations (1)
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Number |
Date |
Country |
Parent |
564895 |
Aug 1990 |
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