Composition comprising saturated hydrocarbon and method for dust suppression

Abstract

A composition for suppressing dust particles includes from about 51% to about 100% by weight of saturated hydrocarbons, and from about 0 to about 49% by weight of unsaturated hydrocarbons. The composition has a content of wax in the range from about 5% to about 40% by weight of the total composition. A method of making and a method of using such a composition are also provided.

What is claimed is: 
     
         1 . A composition for suppressing dust particles, comprising:
 from about 51% to about 100% by weight of saturated hydrocarbons; and   from about 0 to about 49% by weight of unsaturated hydrocarbons;   wherein the composition has a content of wax in the range from about 5% to about 40% by weight of the total composition.   
     
     
         2 . The composition of  claim 1 , wherein
 the saturated hydrocarbons and the unsaturated hydrocarbons are hydrocarbons in the range of from C6 to C61.   
     
     
         3 . The composition of  claim 1 , wherein
 the saturated hydrocarbons comprise hydrocarbons substantially in the range of from C16 to C26.   
     
     
         4 . The composition of  claim 1 , wherein
 the wax is paraffinic wax.   
     
     
         5 . The composition of  claim 1 , wherein
 the wax is saturated hydrocarbon in the range from C27 to C61.   
     
     
         6 . The composition of  claim 1 , wherein
 the content of the wax is in the range from about 5% to about 30% by weight of the total composition.   
     
     
         7 . The composition of  claim 1 , wherein
 the content of the wax is in the range from about 10% to about 20% by weight of the total composition.   
     
     
         8 . The composition of  claim 1 , wherein
 the wax has a boiling point of equal to or higher than 376° C. measured under atmospheric pressure.   
     
     
         9 . The composition of  claim 1 , wherein
 the saturated hydrocarbons and the unsaturated hydrocarbons have a boiling point in the range from about 285° C. to about 405° C., and from about 60% to about 95% by weight of total composition has a boiling point of in the range of from 285° C. to 376° C., the boiling points being measured under atmospheric pressure.   
     
     
         10 . The composition of  claim 1 , wherein
 the saturated hydrocarbons further comprises at least one cyclic saturated hydrocarbon, and the at least one cyclic saturated hydrocarbon is in the range from about 0.1% to about 10% by weight of the total composition.   
     
     
         11 . The composition of  claim 10 , wherein
 the saturated hydrocarbons comprise paraffin in the range of from about 61% to about 99.9% by weight of the total composition.   
     
     
         12 . The composition of  claim 1 , wherein the composition has a melting point of in the range of from 0° C. to 37.7° C. 
     
     
         13 . The composition of  claim 1 , wherein the unsaturated hydrocarbons are in the range of from about 5% to about 30% by weight of the total composition. 
     
     
         14 . The composition of  claim 1 , wherein the unsaturated hydrocarbons are in the range of from about 10 to about 20% by weight of the total composition. 
     
     
         15 . The composition of  claim 1 , wherein the unsaturated hydrocarbons are aromatic. 
     
     
         16 . The composition of  claim 1 , wherein
 the saturated hydrocarbons are in the range of from about 80 to about 95% by weight of the total composition; wherein the wax is saturated hydrocarbon and is in the range from about 10% to about 20% by weight of the total composition; and   the unsaturated hydrocarbons are aromatic, and are in the range of from about 5 to about 20% by weight of the total composition.   
     
     
         17 . A method of making the composition of  claim 1  for suppressing dust particles, comprising:
 fractionally distilling a fraction from a crude oil, the fraction comprising saturated and unsaturated hydrocarbons in the range of from C6 to C61. 
 
     
     
         18 . The method of  claim 17 , further comprising:
 hydrogenating the fraction to convert at least a portion of the unsaturated hydrocarbons to saturated hydrocarbons.   
     
     
         19 . The method of  claim 18 , wherein
 the unsaturated hydrocarbons in the fraction comprise aromatic hydrocarbons, and at least a portion of the aromatic hydrocarbons is converted into cyclic saturated hydrocarbons after the step of hydrogenating.   
     
     
         20 . The method of  claim 18 , wherein
 the unsaturated hydrocarbons in the fraction comprise less than 5% by weight of olefin, and the olefin is converted into saturated hydrocarbon after the step of hydrogenating.   
     
     
         21 . The method of  claim 18 , wherein a degree of the hydrogenation in the step of hydrogenating is in the range from 10% to 95% by weight of the unsaturated hydrocarbons in the fractions. 
     
     
         22 . A method of using the composition of  claim 1  for suppressing particles, comprising:
 applying the composition to bring the composition in contact with the particles. 
 
     
     
         23 . The method of  claim 22 , wherein
 the step of applying the composition comprises a step of mixing the composition with the particles.   
     
     
         24 . The method of  claim 22 , wherein
 the step of applying the composition comprises a step of spraying the composition onto with the particles.   
     
     
         25 . The method of  claim 24 , wherein the composition is sprayed into drops having a size substantially similar or close to the size of the particles. 
     
     
         26 . The method of  claim 21 , further comprising:
 heating the composition before or during the step of applying the composition.   
     
     
         27 . The method of  claim 26 , wherein the composition is heated at a temperature of in the range from 20° C. to 100° C.