US2006236598A1PendingUtilityA1

Low temperature biodiesel diesel blend

51
Assignee: FLINT HILLS RESOURCES L PPriority: Apr 26, 2005Filed: Oct 12, 2005Published: Oct 26, 2006
Est. expiryApr 26, 2025(expired)· nominal 20-yr term from priority
Inventors:Charles W. Selvidge
C10L 1/19C10L 1/1852C10L 10/14C10G 2300/1011Y02P30/20C10L 1/18
51
PatentIndex Score
0
Cited by
0
References
0
Claims

Abstract

Low temperature biodiesel blends prevent or inhibit filter problems at low temperature including temperatures at or near the cloud point of biodiesel blends. The novel biodiesel fuels may be formulated to contain low water content or can include chemical additives such as glycol ethers to prevent or inhibit low temperature filter deposits.

Claims

exact text as granted — not AI-modified
1 . A method of improving cold weather performance of biodiesel fuels by inhibiting filter deposits due to water content at low temperature.  
   
   
       2 . The method of  claim 1 , comprising providing a biodiesel fuel with water content below 20 ppm.  
   
   
       3 . The method of  claim 1 , comprising providing a biodiesel fuel composition including an effective amount of a precipitate inhibiting chemical agent.  
   
   
       4 . The method of  claim 3 , wherein the chemical agent is a glycol ether.  
   
   
       5 . The method of  claim 4 , wherein the agent is a methylene glycol ether.  
   
   
       6 . The method of  claim 4 , wherein the agent is an ethylene glycol ether.  
   
   
       7 . The method of  claim 3 , wherein the agent is mono methyl ether of diethylene glycol.  
   
   
       8 . The method of  claim 3 , wherein the chemical agent is added to a final concentration of at least 50 ppm.  
   
   
       9 . The method of  claim 3 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 1500 ppm.  
   
   
       10 . The method of  claim 3 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 1000 ppm.  
   
   
       11 . The method of  claim 3 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 800 ppm.  
   
   
       12 . The method of  claim 3 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 500 ppm.  
   
   
       13 . The method of  claim 3 , wherein the chemical agent is mixed into biodiesel prior to blending the biodiesel with diesel fuel to produce a biodiesel fuel.  
   
   
       14 . The method of  claim 3 , wherein biodiesel is mixed with diesel to produce a biodiesel fuel prior to adding the chemical agent.  
   
   
       15 . The method of  claim 1 , wherein the biodiesel fuel is B2 biodiesel.  
   
   
       16 . The method of  claim 1 , wherein the biodiesel fuel is B5 biodiesel.  
   
   
       17 . The method of  claim 1 , wherein the biodiesel fuel is B20 biodiesel.  
   
   
       18 . A biodiesel blend fuel comprising biodiesel, diesel, and a chemical agent effective to inhibit filter deposits from the fuel at temperatures from 20° F. to −40° F.  
   
   
       19 . The fuel of  claim 18 , further defined as B2 biodiesel.  
   
   
       20 . The fuel of  claim 18 , further defined as B5 biodiesel.  
   
   
       21 . The fuel of  claim 18 , further defined as B20 biodiesel.  
   
   
       22 . The fuel of  claim 18 , wherein the chemical agent is a glycol ether.  
   
   
       23 . The fuel of  claim 22 , wherein the chemical agent is a methylene glycol ether.  
   
   
       24 . The fuel of  claim 22 , wherein the chemical agent is an ethylene glycol ether.  
   
   
       25 . The fuel of  claim 22 , wherein the chemical agent is mono methyl ether of diethylene glycol.  
   
   
       26 . The fuel of  claim 18 , wherein the chemical agent is added to a final concentration of at least 50 ppm.  
   
   
       27 . The fuel of  claim 18 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 1500 ppm.  
   
   
       28 . The fuel of  claim 18 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 1000 ppm.  
   
   
       29 . The fuel of  claim 18 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 800 ppm.  
   
   
       30 . The fuel of  claim 18 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 500 ppm.  
   
   
       31 . The fuel of  claim 18 , with a water content greater than about 20 ppm.  
   
   
       30 . A biodiesel blend fuel comprising biodiesel, diesel, a water content of more than about 20 ppm, and a chemical agent effective to inhibit precipitation of water from the fuel at temperatures from 20° F. to −40° F.  
   
   
       31 . The fuel of  claim 30 , further defined as B2 biodiesel.  
   
   
       32 . The fuel of  claim 30  further defined as B5 biodiesel.  
   
   
       33 . The fuel of  claim 30 , wherein the chemical agent is a glycol ether.  
   
   
       34 . The fuel of  claim 30 , wherein the chemical agent is a methylene glycol ether.  
   
   
       35 . The fuel of  claim 30 , wherein the chemical agent is an ethylene glycol ether.  
   
   
       36 . The fuel of  claim 30 , wherein the chemical agent is mono methyl ether of diethylene glycol.  
   
   
       37 . The fuel of  claim 30 , wherein the chemical agent is added to a final concentration of at least 50 ppm.  
   
   
       38 . The fuel of  claim 30 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 1500 ppm.  
   
   
       39 . The fuel of  claim 30 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 1000 ppm.  
   
   
       40 . The fuel of  claim 30 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 800 ppm.  
   
   
       41 . The fuel of  claim 30 , wherein the chemical agent is added to a final concentration of from about 50 ppm to about 500 ppm.  
   
   
       42 . A biodiesel blend fuel comprising from 2-20% biodiesel relative to petroleum diesel and from 50 ppm to 1500 ppm mono methyl ether of diethylene glycol.  
   
   
       43 . A biodiesel composition formulated to blend with petroleum diesel, wherein the biodiesel contains from 0.25% to 10% mono methyl ether of diethylene glycol.  
   
   
       41 . A biodiesel fuel comprising from 2 to 20% biodiesel relative to petroleum diesel and with a water content no greater than about 20 ppm.

Join the waitlist — get patent alerts

Track US2006236598A1 — get alerts on status changes and closely related new filings.

We store only your email — no account needed. See our privacy policy.