Oil extraction

Yield, %

1) With solvents (heptane, benzine), in 1:2 ratio, T-80˚C, %:

Organic part of bituminous ground, including:

99.0

Oil

88.0

RAS (alcohol-benzene 1:2)

11.0

2) Hydrogenation of the oil in the ground (with ground as catalyst, T-340˚C - 360˚C, H₂-600 l/l), %:

Organic part of bituminous ground, including:

98.0

Oil

94.0

RAS

4.0

3) Supercritical carbon dioxide (with heptane, in 1:1 ratio, T-40˚C, P-8 MPa), %:

Organic part of bituminous ground, including:

99.9

Oil

(alcohol-benzene 1:1) RAS

33.2^*)