The present invention generally relates to methods for removing an organic deposit or for inhibiting deposition of deposit-forming comprising contacting a cleaning composition or an anti-coking composition with a surface. The surface can have an organic deposit or be susceptible to forming an organic deposit and the surface can be in contact with a liquid containing organics. The liquid can be produced from a thermal recovery system, and the surface can be an internal surface of a piece of steam-generating or vapor-generating equipment.

A method for cleaning a generator of a wind turbine is provided, including locking a wind turbine rotor, shutting off a generator; removing a cooling device such that an opening is accessible for maintenance purposes; inserting a cleaning agent into the opening such that the cleaning agent gets at least partially in effective contact with a winding and/or with a magnetic element; at least partially removing the cleaning agent from the generator; mounting the cooling device to the opening; and releasing the wind turbine rotor, wherein the cleaning agent is or includes a grease remover that is non-water-soluble and a fluid liquid such that the generator can be partially flushed with the grease remover, has a density larger than 0.6 g/cm.sup.3 and lower than 0.85 g/cm.sup.3, has kinematic viscosity larger than 1.3 mm.sup.2/s and lower than 2.5 mm.sup.2/s, and comprises N-Paraffins and hydrocarbons.

A method for cleaning a semiconductor substrate includes releasing and dissolving an adhesive layer formed on a semiconductor substrate using a releasing and dissolving composition, in which the releasing and dissolving composition contains: a component [I]: a quaternary ammonium salt; a component [II]: an amide-based solvent; and a component [III]: a solvent represented by the following Formula (L), where L represents a substituent substituted on a benzene ring and each independently represents an alkyl group having 1 to 4 carbon atoms, and k represents the number of L and is an integer of 0 to 5.

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The present invention provides a Fischer-Tropsch gasoil fraction having an initial boiling point of at least 165 C. and a final boiling point of at most 220 C. In another aspect the present invention provides a cleaning composition and the use of a Fischer-Tropsch gasoil fraction according to the invention.

A solution for use in removing a double sided adhesive tape from mouldings and which can have the further property of conditioning the moulding for re-use. The solution comprising an admixture of ingredients which can synergistically function to give the desired properties and advantages. The mixture comprising: (a) a ratio of about 1:1 of Kerosene:Diesel; (b) 1 to 10% by vol. of an additive comprising a highly aromatic hydrocarbon solvent; and (c) 0 to 10% by vol. of perfume.

A cleaning method and a cleaning fluid are provided. The cleaning method includes accessing a plurality of turbine components attached to a turbine assembly, the turbine assembly being a portion of a turbomachine, positioning at least one cleaning vessel over at least one of the turbine components, forming a liquid seal with a sealing bladder, providing a cleaning fluid to the cleaning vessel, and draining the cleaning fluid from the cleaning vessel. The cleaning fluid includes a carrier fluid and a solvent additive for removing fouling material from the turbine component. An alternative cleaning method is also provided.

A cleaning method and a cleaning fluid are provided. The cleaning method includes accessing a plurality of turbine components attached to a turbine assembly, the turbine assembly being a portion of a turbomachine, positioning at least one cleaning vessel over at least one of the turbine components, forming a liquid seal with a sealing bladder, providing a cleaning fluid to the cleaning vessel, and draining the cleaning fluid from the cleaning vessel. The cleaning fluid includes a carrier fluid and a solvent additive for removing fouling material from the turbine component. An alternative cleaning method is also provided.

The present invention generally relates to methods for removing an organic deposit or for inhibiting deposition of deposit-forming comprising contacting a cleaning composition or an anti-coking composition with a surface. The surface can have an organic deposit or be susceptible to forming an organic deposit and the surface can be in contact with a liquid containing organics. The liquid can be produced from a thermal recovery system, and the surface can be an internal surface of a piece of steam-generating or vapor-generating equipment.

A method for efficiently and safely cleaning an apparatus for tin compound and a highly purified tin compound apparatus are provided. A cleaning method for an apparatus that has been in contact with a tin compound having formula (1) below includes at least steps (A) to (C), in which step (B) is performed after step (A), and step (C) is performed after step (B): (A) a step of cleaning the apparatus with a non-protic solvent, (B) a step of cleaning the apparatus with alcohol, and (C) a step of cleaning the apparatus with ultrapure water having a resistivity value of 17 M.Math.cm at 25 C.

R.sub.pSnX.sub.m(1)

In formula (1), R is a hydrocarbon group, p is an integer from 1 to 3, X is a hydrolyzable substituent, and m=4p.

Cleaning fluids include at least 2 fluid components. The first fluid component is a chlorinated hydrofluoroolefin, a hydrochlorofluoroolefin, or a mixture of hydrochlorofluoroolefins. The second fluid component includes at least one of a hydrofluorothioether, a perfluorinated olefin with at least 6 carbon atoms, a hydrofluorolefin with at least 6 carbon atoms, a perfluorinated olefin mixture where the perfluorinated olefins have at least 6 carbon atoms, or a hydrofluorolefin mixture where the hydrofluorolefins have at least 6 carbon atoms.