US 12,258,529 B2
Additive for the combustion of solid fuels and production process of this additive
Thu Ha Thi Vu, Hanoi (VN)
Assigned to National Key Laboratory For Petrochemical and Refinery Technologies, Hanoi (VN)
Filed by National Key Laboratory For Petrochemical and Refinery Technologies, Hanoi (VN)
Filed on Aug. 10, 2023, as Appl. No. 18/232,779.
Claims priority of application No. 1-2022-07602 (VN), filed on Nov. 21, 2022.
Prior Publication US 2023/0383207 A1, Nov. 30, 2023
Int. Cl. C10L 9/12 (2006.01)
CPC C10L 9/12 (2013.01) [C10L 2200/029 (2013.01); C10L 2230/22 (2013.01); C10L 2290/24 (2013.01)] 7 Claims
 
1. An additive for solid fuel combustion comprising following components (% mass):
activator component: 20-30,
active component: 50-60,
auxiliary component: 5-9,
stabilizing component: 1-5, and
solvent: suitable,
in which, the activator component is a mixture of highly polar substances, including benzimidazole molecule with oxadiazole ring,
the active component is a solution containing 1 mass fraction of an ammonium salt of carbonic acid, 2 mass fractions of an ammonium salt of a carboxylic acid with 2 to 5 carbon atoms, in demineralized water;
the auxiliary component includes urea and demineralized water;
the stabilizing is a mixture of fatty acid alkyl esters, glycerol esters, organic acid esters with 2, 3 or 5 carbon atoms, and isopropanol;
the solvent is a mixture of isopropanol and butanol.