Manufacturing method and manufacturing system of blended hydrocarbon composition

Abstract

Provided are a method for manufacturing a blended hydrocarbon composition including operation S1) applying voltage to a first blended solution in which waste plastic pyrolysis oil, washing water, and a demulsifier are blended to dehydrate the first blended solution; operation S2) hydrotreating a second blended solution in which the first blended solution dehydrated in operation S1) and a sulfur source are blended to produce refined pyrolysis oil from which impurities have been removed; and operation S3) blending the refined pyrolysis oil from which impurities have been removed in operation S2) with a petroleum-based hydrocarbon to manufacture a blended hydrocarbon composition, and a manufacturing system of the blended hydrocarbon composition.

What is claimed is: 
     
         1 . A method for manufacturing a blended hydrocarbon composition, the method comprising:
 operation S1) applying voltage to a first blended solution in which waste plastic pyrolysis oil, washing water, and a demulsifier are blended to dehydrate the first blended solution;   operation S2) hydrotreating a second blended solution in which the first blended solution dehydrated in operation S1) and a sulfur source are blended to produce refined pyrolysis oil from which impurities have been removed; and   operation S3) blending the refined pyrolysis oil from which impurities have been removed in operation S2) with a petroleum-based hydrocarbon to manufacture a blended hydrocarbon composition.   
     
     
         2 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , wherein the petroleum-based hydrocarbon includes at least one selected from the group consisting of gasoline, kerosene, aviation fuel, diesel, lube base oil, marine fuel oil, asphalt, and wax. 
     
     
         3 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , further comprising:
 before operation S1), adding waste plastics to a pyrolysis reactor to manufacture pyrolysis gas; and   adding the pyrolysis gas to a hot filter to manufacture the waste plastic pyrolysis oil.   
     
     
         4 . The method for manufacturing the blended hydrocarbon composition of  claim 3 , wherein a liquid condensed in the hot filter is reintroduced to the pyrolysis reactor. 
     
     
         5 . The method for manufacturing the blended hydrocarbon composition of  claim 3 , wherein the hot filter is filled with beads. 
     
     
         6 . The method for manufacturing the blended hydrocarbon composition of  claim 5 , wherein the beads include at least one selected from the group consisting of silica sand (SiO 2 ) and aluminum oxide (Al 2 O 3 ). 
     
     
         7 . The method for manufacturing the blended hydrocarbon composition of  claim 3 , wherein a temperature gradient is formed in the hot filter. 
     
     
         8 . The method for manufacturing the blended hydrocarbon composition of  claim 7 , wherein the temperature gradient is formed by providing at least two heaters outside the hot filter. 
     
     
         9 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , wherein in operation S1), the waste plastic pyrolysis oil is blended at a larger volume than the washing water. 
     
     
         10 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , wherein the voltage is applied by alternating current or a combination of alternating current and direct current. 
     
     
         11 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , wherein the voltage is applied through a vertical electrode. 
     
     
         12 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , further comprising in operation S1), after applying the voltage, removing a rag layer from the first blended solution. 
     
     
         13 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , wherein operation S1) includes dehydrating the dehydrated first blended solution by moisture coalescence. 
     
     
         14 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , wherein the sulfur source includes one or two or more sulfur-containing organic compounds selected from disulfide-based compounds, sulfide-based compounds, sulfonate-based compounds, and sulfate-based compounds. 
     
     
         15 . The method for manufacturing the blended hydrocarbon composition of  claim 1 , further comprising:
 before operation S3), a distillation process of distilling the refined pyrolysis oil to produce a refined hydrocarbon derived from the refined pyrolysis oil,   wherein in operation S3), the refined hydrocarbon is blended with the petroleum-based hydrocarbon to manufacture the blended hydrocarbon composition.   
     
     
         16 . A manufacturing system of a blended hydrocarbon composition comprising:
 a dehydrator which applies voltage to a first blended solution in which waste plastic pyrolysis oil is blended with washing water and a demulsifier to dehydrate the first blended solution;   a hydrotreating device which hydrotreats a second blended solution in which the dehydrated first blended solution and a sulfur source are blended to manufacture refined pyrolysis oil from which impurities have been removed; and   a blending device which blends the refined pyrolysis oil with a petroleum-based hydrocarbon to manufacture a blended hydrocarbon composition.   
     
     
         17 . The manufacturing system of the blended hydrocarbon composition of  claim 16 , further comprising:
 a pyrolysis reactor which manufactures pyrolysis gas by adding waste plastics; and   a hot filter which manufactures waste plastic pyrolysis oil by adding the pyrolysis gas.   
     
     
         18 . The manufacturing system of the blended hydrocarbon composition of  claim 17 , further comprising:
 a connection pipe which connects the hot filter and the pyrolysis reactor so that a liquid condensed in the hot filter is reintroduced to the pyrolysis reactor.   
     
     
         19 . The manufacturing system of the blended hydrocarbon composition of  claim 16 , further comprising:
 a distillation device which distills the refined pyrolysis oil to produce a refined hydrocarbon derived from the refined pyrolysis oil,   wherein the blending device blends the refined hydrocarbon with the petroleum-based hydrocarbon to manufacture thee blended hydrocarbon composition.   
     
     
         20 . A method for manufacturing a blended hydrocarbon composition, the method comprising:
 forming a first blended solution including a waste plastic pyrolysis oil, washing water, and a demulsifier;   applying voltage to the first blended solution to form a dehydrated first blended solution;   adding a sulfur source to the dehydrated first blended solution to form a second blended solution;   hydrotreating the second blended solution to produce a refined pyrolysis oil; and   blending the refined pyrolysis oil with a petroleum-based hydrocarbon to manufacture a blended hydrocarbon composition,   wherein the petroleum-based hydrocarbon includes at least one selected from the group consisting of gasoline, kerosene, aviation fuel, diesel, lube base oil, marine fuel oil, asphalt, and wax.