Sample

Impregnation temperature (˚C)

S/C Ratio

Yield of sulfurization

SAC-350

350

1:10

1.094

SAC-400

400

1:10

1.088

SAC-400

400

1:4

1.226

SAC-450

450

1:4

1.210

SAC-500

500

1:4

1.182

SAC-400

400

1:5

1.183

SAC-450

450

1:5

1.175