On-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system

A method of using an on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system, comprising the steps of:

• a) passing a spent petroleum based hydrocarbon fluid into an empty porous polyester draw bag of a first filtering stage of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system, via an inlet throughport in a lid of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system, where large particles of dirt and grease are removed from the spent petroleum based hydrocarbon fluid passing therethrough;
• b) passing the spent petroleum based hydrocarbon fluid that previously past through said empty porous polyester draw bag of said first filtering stage into an empty porous polyester draw bag of a second filtering stage of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system, which encases said empty porous polyester draw bag of said first filtering stage, where small particles of dirt and grease are removed from the spent petroleum based hydrocarbon fluid passing therethrough;
• c) allowing the spent petroleum based hydrocarbon fluid that previously passed through said empty porous polyester draw bag of said second filtering stage to fall downwardly, by gravity, to a lower portion of a hollow and open-top fluid reservoir of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system;
• d) drawing in the spent petroleum based hydrocarbon fluid at said lower portion of said hollow and open-top fluid reservoir into a submersible internal pump;
• e) pumping the spent petroleum based hydrocarbon fluid upwardly through a substantially Z-shaped internal conduit of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system;
• f) passing the spent petroleum based hydrocarbon fluid through a hollow and cylindrically-shaped portion of a circular-cylindrically-shaped top cap of a hollow canister of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system;
• g) passing the spent petroleum based hydrocarbon fluid that previously passed through the hollow and cylindrically-shaped portion of said circular-cylindrically-shaped top cap of said hollow canister into a porous polyester draw bag of a third filtering stage contained in said hollow canister where charcoal contained in said porous polyester draw bag of said third filtering stage contained in said hollow canister adsorbs grease and dirt from the spent petroleum based hydrocarbon fluid passing therethrough, while said porous polyester draw bag of said third filtering stage contained in said hollow canister eliminates large particles of dirt and grease from the spent petroleum based hydrocarbon fluid passing therethrough;
• h) passing the spent petroleum based hydrocarbon fluid that previously passed through said porous polyester draw bag of said third filtering stage through a porous polyester draw bag of a fourth filtering stage where fuller's earth contained in said porous polyester draw bag of said fourth filtering stage contained in said hollow canister adsorbs discoloration from the spent petroleum based hydrocarbon fluid passing therethrough, while said porous polyester draw bag of said fourth filtering stage contained in said hollow canister eliminates small particles of dirt and grease from the spent petroleum based hydrocarbon fluid passing therethrough;
• i) passing downwardly, by gravity, the recycled petroleum based hydrocarbon fluid that previously passed through said porous polyester draw bag of said fourth filtering stage through a pair of spaced-apart drain throughbores in a circular-shaped and substantially closed bottom of a circular-cylindrically-shaped bottom cap of said hollow canister to said lower portion of said hollow and open-top fluid reservoir;
• j) repeating steps d)-i) for a time duration controlled by an external timer of said on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system;
• and
• k) pumping concurrently with step j) the recycled petroleum based hydrocarbon fluid, by an external pump, up through a conduit to a device from which the spent petroleum based hydrocarbon fluid has been recycled for reuse, so that the recycled petroleum based hydrocarbon fluid is dispensed while the spent petroleum based hydrocarbon fluid is simultaneously recycled.

A method of automatically recycling a spent petroleum based hydrocarbon fluid on-site and simultaneously continuously dispensing on-site a recycled petroleum based hydrocarbon fluid that is the spent petroleum based hydrocarbon after being recycled, comprising the step of passing the spent petroleum based hydrocarbon fluid through an on-site automated closed loop petroleum based hydrocarbon fluid filtration and recycling system which comprises:

• a) a hollow and open-top fluid reservoir having a closed bottom with an inner surface, and an open top disposed above said closed bottom of said hollow and open-top fluid reservoir;
• b) a lid having an outer surface, an inner surface, an inlet throughport extending vertically therethrough, an output throughport extending vertically therethrough, and selectively opening and closing said open top of said hollow and open-top fluid reservoir, so that internal components housed in said hollow and open-top fluid reservoir can be readily serviced;
• c) inlet means for inputting the spent petroleum based hydrocarbon fluid into said hollow and open-top fluid reservoir;
• said inlet means being disposed in said inlet throughport in said lid;
• d) outlet means for outputting the recycled petroleum based hydrocarbon fluid from said hollow and open-top fluid reservoir;
• said outlet means being disposed in said outlet throughport in said lid;
• e) a first filtering stage contained in said hollow and open-top fluid reservoir and being removably attached to said inlet means;
• said first filtering stage removing large particles of dirt and grease from the spent petroleum based hydrocarbon fluid passing therethrough;
• f) a second filtering stage encasing said first filtering stage and being contained in said hollow and open-top fluid reservoir;
• said second filtering station being removably attached to said inlet means and removing small particles of dirt and grease from the spent petroleum based hydrocarbon fluid passing therethrough;
• g) a submersible internal pump having an operating time and being disposed in said hollow and open-top fluid reservoir on said inner surface of said closed bottom of said hollow and open-top fluid reservoir, in proximity to said outlet means;
• said submersible internal pump drawing in the spent petroleum based hydrocarbon fluid passing through said second filtering stage;
• h) a third filtering stage contained in said hollow and open-top fluid reservoir and being tandemly disposed to said first filtering stage and said second filtering stage;
• said third filtering stage adsorbing grease and dirt from the spent petroleum based hydrocarbon fluid passing therethrough;
• i) connecting means for fluidly connecting said submersible internal pump to said third filtering stage and being contained in said hollow and open-top fluid reservoir;
• said connecting means transporting the spent petroleum based hydrocarbon fluid drawn in by said submersible internal pump to said third filtering stage;
• and
• j) a fourth filtering stage encasing said third filtering stage and being contained in said hollow and open-top fluid reservoir;
• said fourth filtering station removing discoloration from the spent petroleum based hydrocarbon fluid passing therethrough, so that the spent petroleum based hydrocarbon fluid passes downwardly through said first filtering stage and is purged of large particles of dirt and grease, then passes downwardly through said second filtering stage and is purged of small particles of dirt and grease, then is drawn into said submersible internal pump, then is pumped upwardly through said connecting means, then passes downwardly through said third filtering stage and is purged of dirt and grease, then passes downwardly through said fourth filtering stage and is purged of discolorations, then enters into said hollow and open-top fluid reservoir, and then is drawn into said outlet means as the recycled petroleum based hydrocarbon fluid.