Modified bitumen composition and process of preparation thereof

A modified bitumen composition comprising:

• (a) at least two refinery residues;
• wherein the at least two refinery residues are selected from the group consisting of propane de-asphalted (PDA) pitch, vacuum tower bottom (VTB), flux, low viscous extract, and vacuum gas oils;
• and,
• (b) a sulphur additive, wherein the sulphur additive comprises:
• (i) sulphur;
• (ii) at least one H2S suppressant;
• wherein the at least one H2S suppressant is selected from the group consisting of FCC refinery spent catalyst, HDS refinery spent catalyst, DHDS refinery spent catalyst, Fe(acac)3, Fe(EHA)3, FeCl3, calcium oxide, calcium carbonate, bentonite clay, wood charcoal, and combinations thereof;
• and
• (iii) at least one smell masking agent;
• wherein the at least one smell masking agent is selected from the group consisting of eugenol, linalool, geraniol, vanillin, iso-amyl ester, phenyl amyl ester, limonene, cinnamaldehyde, and combinations thereof,
• And,
• (iv) bitumen,
• wherein the sulphur and the at least one H2S suppressant are in a weight ratio range of 4:1 to 100:1.