 |  | The Purification of Biogas (GTZ, 1985, 33 p.) | |
 |  | (introduction...) | |
| | 0. Introduction | |
| | 1. Properties of hydrogen sulphide | |
| | 2. The origins of hydrogen sulphide in biogas plants | |
| | 3. The effect of hydrogen sulphide on the biogas plant and the gas-utilization equipment | |
| | 4. Determination of the hydrogen sulphide content of biogas | |
| | 5. Methods for removing hydrogen sulphide from biogas | |
| | 6. Purifying absorbent | |
| | 7. Requirements on the absorbent | |
| | 8. The desulphurizing apparatus | |
| | 9. Operation procedures for gas desulphurization | |
| | 10. Summary | |
| | Appendix | |
