Abstract: The present invention provides a novel method for the transfer of heat energy which comprises producing the vapor of a heat-transfer medium at a heat generation place 1, transporting the resulting heat-transfer medium vapor to an absorption tank 4, allowing it to be absorbed into an absorption fluid containing an absorbent and thereby raising the temperature of the resulting liquid mixture of the heat-transfer medium and the absorption fluid to a temperature higher than that of the heat-transfer medium vapor, utilizing the heat of the liquid medium thus obtained, separating it into a heat-transfer medium and an absorption fluid by means of a semipermeable membranous material, and recycling and reusing them as the heat-transfer medium and the absorption fluid, respectively. This method for the transfer of heat energy permits energy of high quality to be transferred with high thermal efficiency and, in particular, permits low-pressure steam to be transported efficiently and stored with little loss of heat.

Abstract: A process for the solvent deasphalting of asphaltene-containing hydrocarbons which comprising mixing asphaltene-containing hydrocarbons with a metal compound such as aluminum carbonates or titanium (IV) oxide and also with a solvent such as n-heptane, n-hexane, n-heptane or a mixed n-pentane.n-butanol solvent, to form a mixture which is then allowed to stand still to precipitate and separate the asphaltene therefrom thereby obtaining a deasphalted oil.

Abstract: A process for the solvent deasphalting of asphaltene-containing hydrocarbons which comprising mixing asphaltene-containing hydrocarbons with a metal compound such as aluminum sulfate or titanium (IV) oxide and also with a solvent such as n-heptane, n-hexane, n-heptane or a mixed n-pentane.n-butanol solvent, to form a mixture which is then allowed to stand still to precipitate and separate the asphaltene therefrom thereby obtaining a deasphalted oil.

Abstract: A continuous process for solvent deasphalting asphaltene-containing hydrocarbons which comprises mixing (A) 100 parts by weight of asphaltene-containing hydrocarbons with (B) 0.005-0.5 parts by weight of an amorphous silicon dioxide and/or a silicate compound and also with (C) 5-2000 parts by weight of a solvent such as n-heptane, n-hexane, n-heptane or a mixed n-pentane.n-butanol solvent, to form a mixture which is then allowed to stand still to precipitate and separate the asphaltene therefrom thereby obtaining a deasphalted oil.