US2019127650A1PendingUtilityA1

Dimethyl ether blended fuel alternative for diesel engines

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Assignee: UNIV MICHIGAN REGENTSPriority: Apr 18, 2016Filed: Apr 18, 2017Published: May 2, 2019
Est. expiryApr 18, 2036(~9.7 yrs left)· nominal 20-yr term from priority
Inventors:André Louis BoehmanTaemin Kim
C10L 1/1852C10L 1/026C10L 1/1826C10L 2270/026C10L 2270/04C10L 1/125
45
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Claims

Abstract

A dimethyl ether blended fuel having a fuel composition including dimethyl ether (DME), glycerol, and a co-solvent, wherein the fuel composition achieving a kinematic viscosity of at least 0.2 centistokes (cSt).

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A dimethyl ether blended fuel comprising:
 a fuel composition having dimethyl ether (DME), glycerol, and a co-solvent, wherein the fuel composition having a kinematic viscosity of at least 0.2 centistokes (cSt).   
     
     
         2 . The dimethyl ether blended fuel according to  claim 1  wherein the fuel composition having a kinematic viscosity of at least 1.3 centistokes (cSt) 
     
     
         3 . The dimethyl ether blended fuel according to  claim 1  wherein the fuel composition having a kinematic viscosity of at least 1.9 centistokes (cSt) 
     
     
         4 . The dimethyl ether blended fuel according to  claim 1  wherein the co-solvent comprises Di-propylene glycol (DPG). 
     
     
         5 . The dimethyl ether blended fuel according to  claim 4  wherein the fuel composition having a binary mixture of DPG and glycerol of about 54 wt. %. 
     
     
         6 . The dimethyl ether blended fuel according to  claim 5  wherein the binary mixture of DPG and glycerol has about 34.02 wt. % DPG and 19.98 wt. % of glycerol. 
     
     
         7 . The dimethyl ether blended fuel according to  claim 4  wherein the fuel composition having a binary mixture of DPG and glycerol of about 60 wt. %. 
     
     
         8 . The dimethyl ether blended fuel according to  claim 7  wherein the binary mixture of DPG and glycerol has about 35.40 wt. % DPG and 24.6 wt. % of glycerol. 
     
     
         9 . The dimethyl ether blended fuel according to  claim 1  wherein the co-solvent comprises propylene glycol (PG). 
     
     
         10 . The dimethyl ether blended fuel according to  claim 9  wherein the fuel composition having a binary mixture of PG and glycerol of about 52 wt. %. 
     
     
         11 . The dimethyl ether blended fuel according to  claim 10  wherein the binary mixture of DPG and glycerol has about 34.05 wt. % PG and 17.94 wt. % of glycerol. 
     
     
         12 . The dimethyl ether blended fuel according to  claim 9  wherein the fuel composition having a binary mixture of PG and glycerol of about 58 wt. %. 
     
     
         13 . The dimethyl ether blended fuel according to  claim 12  wherein the binary mixture of DPG and glycerol has about 36.11 wt. % PG and 21.88 wt. % of glycerol. 
     
     
         14 . The dimethyl ether blended fuel according to  claim 1  wherein the DME comprises water. 
     
     
         15 . The dimethyl ether blended fuel according to  claim 14  wherein the DME comprise 5 wt. % water. 
     
     
         16 . The dimethyl ether blended fuel according to  claim 1 , wherein the fuel composition comprises 6.4 to 35 wt. % DPG and 39.2 to 91.9 wt. % DME, and the kinematic viscosity is between 0.2 to 1.84. 
     
     
         17 . The dimethyl ether blended fuel according to  claim 1 , wherein the fuel composition comprises 7.6 to 37.9 wt. % PG and 39.2 to 91.9 wt. % DME, and the kinematic viscosity is between 0.2 to 2.43 cSt.

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