Renewable transportation fuel process with thermal oxidation system

A process for treating acid gas and sour water effluent streams in a process for producing renewable transportation fuel comprising:

• thermally oxidizing at least one of a sour water stream from a cold separation and fractionation section of the renewable transportation fuel process and an amine acid gas stream from an acid gas treatment section of the renewable transportation fuel process in a thermal oxidation system, wherein the sour water stream is not treated in a sour water stripper unit before being thermally oxidized in the thermal oxidation system and the amine acid gas stream is not treated in a sulfur recovery unit before being thermally oxidized in the thermal oxidation system, and wherein thermally oxidizing the at least one of the sour water stream and the amine acid gas stream comprises:
• thermally oxidizing the at least one of the sour water stream and the amine acid gas stream in a thermal oxidizing section forming a flue gas stream consisting essentially of at least one of H2O, CO2, N2, O2, SOx, NOx, HCl, Cl2, dioxins, and furans;
• optionally recovering waste heat from the flue gas stream in a waste heat recovery section;
• removing at least one of SOx, HCl, and Cl2 from the flue gas stream in a SOx removal section to form a de-SOx outlet flue gas stream consisting essentially of at least one of H2O, CO2, N2, O2, NOx, dioxins, and furans, wherein removing the at least one of SOx, HCl, and Cl2 from the flue gas stream comprises:
• quenching the flue gas stream in a quench section to form a quenched flue gas stream;
• and
• contacting a caustic solution or an NH3 based solution with the quenched flue gas stream in a scrubbing section to form the de-SOx outlet flue gas stream and a liquid stream comprising at least one of H2O, Na2SO3, Na2SO4, NaHSO3, Na2CO3, NaCl, (NH4)2SO4, and NH4Cl;
• or
• reacting the flue gas stream with a reactant in an SOx reaction section to form a reaction section flue gas stream consisting essentially of at least one of H2O, CO2, N2, O2, NaCl, Na2CO3, Na2SO4, NaNO3, CaCl2, CaSO4, CaCO3, Ca(NO3)2, MgCl2, MgCO3, MgSO4, Mg(NO3)2, Cl2, NOx, dioxins, and furans, wherein the reactant comprises at least one of NaHCO3, NaHCO3.Na2CO3.2(H2O), CaCO3, Ca(OH)2, and Mg(OH)2;
• and
• filtering the reaction section flue gas stream in a filtration section to remove NaCl, Na2CO3, Na2SO4, NaNO3, CaCl2), CaSO4, CaCO3, Ca(NO3)2, MgCl2, MgCO3, MgSO4, and Mg(NO3)2 to form the de-SOx outlet flue gas stream;
• optionally removing NOx from the de-SOx outlet flue gas stream in an NOx removal section to form a de-NOx outlet flue gas stream consisting essentially of at least one of H2O, CO2, N2, O2, dioxins, and furans;
• and
• optionally removing dioxin, furan, or both from the de-SOx outlet flue gas stream or the de-NOx outlet flue gas stream in a dioxin-furan removal section to form a treated outlet flue gas stream consisting essentially of at least one of H2O, CO2, N2, and O2.