Table 1 Experimental acid and base number of the crude oils and defined surface site densities in the modeling for the utilized experimental data sets.

From: An overview of the oil-brine interfacial behavior and a new surface complexation model

Reference

Type of oil

AN

(mg/g KOH)

BN

(mg/g KOH)

N−COOH (#/nm2)

N−NH (#/nm2)

Kolltveit80

Crude oil A

3

0.8

2.5

0.6

Crude oil B

2

0.8

1.8

0.6

Crude oil C

1

0.8

1.15

0.6

Buckley et al.26

Moutray

0.26

—

0.7

0.1

Leduc

0.15

—

0.6

0.3

ST-86-1

0.15

—

0.6

0.03

Chow et al.25

Moutray

0.26

—

0.7

0.1

Bitumen

2

—

1.8

0.05

Alshakhs et al.4

Crude oil

1.15

1.25

1.2

0.8

Nasralla et al.84

Crude oil A

0.18

1.65

0.6

0.6

Crude oil B

0.11

0.62

0.3

0.55

Ayirala et al.18

Crude oil

0.05

0.7

0.5

0.35

Takeya et al.85

Crude oil

0.39

1.86

0.75

0.75

Lu et al.16

Oil 1

0.21

5.6

0.6

0.6

Oil 2

0.18

1.14

0.6

0.6

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