| Similarity | Rank | |
|---|---|---|
| hydrocarbon | 0.960 | 36213 |
| methane | 0.855 | 19799 |
| gases | 0.843 | 11662 |
| ethane | 0.841 | 97441 |
| PAHs | 0.840 | 93057 |
| sulfur | 0.830 | 22001 |
| benzene | 0.817 | 46443 |
| sulphur | 0.815 | 34384 |
| methanol | 0.810 | 42034 |
| petroleum | 0.809 | 13215 |
| toluene | 0.803 | 81758 |
| dioxide | 0.800 | 10273 |
| oxides | 0.799 | 42880 |
| solvents | 0.799 | 29089 |
| gasses | 0.794 | 45276 |
| feedstock | 0.792 | 46681 |
| nitrogen | 0.791 | 12237 |
| sulphuric | 0.790 | 87525 |
| feedstocks | 0.789 | 76964 |
| hydrogen | 0.788 | 9917 |
| petrochemicals | 0.787 | 64013 |
| gaseous | 0.786 | 42339 |
| sulfide | 0.786 | 49224 |
| dioxins | 0.784 | 77636 |
| phosphates | 0.783 | 65870 |