Used oils

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CPC
C10G2300/1007

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CCHEMISTRY METALLURGY C10Petroleum, gas C10GCRACKING HYDROCARBON OILS PRODUCTION OF LIQUID HYDROCARBON MIXTURES C10G2300/00Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00

Current Industry

C10G2300/1007Used oils

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Method and system for re-refining and upgrading used oil
- Patent number 12,195,696
- Issue date Jan 14, 2025
- ReGen III Corp.
- Gordon Driedger
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process for integrated production of renewable fuels and chemicals
- Patent number 12,187,965
- Issue date Jan 7, 2025
- Neste Oyj
- Marja Tiitta
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Recycle content mixed esters and solvents
- Patent number 12,104,121
- Issue date Oct 1, 2024
- Eastman Chemical Company
- David Eugene Slivensky
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Apparatus, method and catalyst for processing hydrocarbons for recy...
- Patent number 12,077,715
- Issue date Sep 3, 2024
- Edward Douglas Miller
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Co-processing of pyrolysis oils, lubricants, and/or plastics
- Patent number 12,060,527
- Issue date Aug 13, 2024
- ExxonMobil Technology and Engineering Company
- Aaron Sattler
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Solvent composition prepared from waste oil and method of preparing...
- Patent number 12,054,681
- Issue date Aug 6, 2024
- SK Innovation Co., Ltd.
- Hee Jung Jeon
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process and system for producing light olefins from inferior oils
- Patent number 12,054,682
- Issue date Aug 6, 2024
- China Petroleum and Chemical Corporation
- Huandi Hou
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Co-processing of renewable jet and diesel
- Patent number 12,037,552
- Issue date Jul 16, 2024
- ExxonMobil Technology and Engineering Company
- Daniel E. Kadlecek
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method of providing a bio-oil to a hydrodeoxygenation reactor
- Patent number 12,018,214
- Issue date Jun 25, 2024
- Reg Synthetic Fuels, LLC
- Ramin Abhari
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
UMO-sourced, clean, efficient, non-catalytic cracking and re-refini...
- Patent number 11,999,913
- Issue date Jun 4, 2024
- Arizona Fuel Operations I LLC
- Paul S. Moote
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process for manufacturing of renewable hydrocarbons from renewable...
- Patent number 11,993,752
- Issue date May 28, 2024
- Neste Oyj
- Hemanathan Kumar
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Purification of recycled and renewable organic material
- Patent number 11,981,869
- Issue date May 14, 2024
- Neste Oyj
- Blanka Toukoniitty
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Alkali-enhanced hydrothermal purification of plastic pyrolysis oils
- Patent number 11,939,531
- Issue date Mar 26, 2024
- Neste Oyj
- Ville Paasikallio
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Slurry-phase catalyst compositions and methods of making the same
- Patent number 11,911,750
- Issue date Feb 27, 2024
- Saudi Arabian Oil Company
- Omer Refa Koseoglu
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Process of producing high-quality lube base oil by using refined oi...
- Patent number 11,873,456
- Issue date Jan 16, 2024
- SK INNOVATION CO., LTD. and SK ENMOVE CO., LTD.
- Young Wook Jeon
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method and system for re-refining and upgrading used oil
- Patent number 11,873,463
- Issue date Jan 16, 2024
- ReGen III Corp.
- Gordon Driedger
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Solvent composition prepared from waste oil and method of preparing...
- Patent number 11,814,589
- Issue date Nov 14, 2023
- SK Innovation Co., Ltd.
- Do Kyoung Kim
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Process and plant for producing hydrocarbons with reduced CO2-footp...
- Patent number 11,802,247
- Issue date Oct 31, 2023
- Topsoe A/S
- Rakesh Roy
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Free fatty acid separation and recovery using resin
- Patent number 11,795,403
- Issue date Oct 24, 2023
- The Board of Trustees of the University of Illinois
- Vijay Singh
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Processes for converting petroleum based waste oils into light and...
- Patent number 11,788,018
- Issue date Oct 17, 2023
- Green Marine Fuels LLC
- James Eric Hamilton
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Preparation of an aviation fuel composition
- Patent number 11,773,339
- Issue date Oct 3, 2023
- Neste Oyj
- Ulla Kiiski
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
System and process for heavy fuel oil pyrolysis
- Patent number 11,767,475
- Issue date Sep 26, 2023
- PURAGLOBE HOLDING GmbH
- Andreas Schuppel
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Method for reducing fouling in catalytic cracking
- Patent number 11,708,536
- Issue date Jul 25, 2023
- Neste Oyj
- Ville Paasikallio
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Catalyst column and thermal cracking system
- Patent number 11,698,189
- Issue date Jul 11, 2023
- Hsiao-Nan Wang
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Grant
Thermal cracking system
- Patent number 11,692,706
- Issue date Jul 4, 2023
- Hsiao-Nan Wang
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Preparation of a fuel blend
- Patent number 11,692,148
- Issue date Jul 4, 2023
- Neste Oyj
- Jenni Nortio
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Engineered feed process in catalytic cracking, simultaneus radicali...
- Patent number 11,680,212
- Issue date Jun 20, 2023
- Seyed Ramin Habibi
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Low-pressure catalytic conversion of used motor oil to diesel fuel
- Patent number 11,591,528
- Issue date Feb 28, 2023
- Karl IP Holdings Inc.
- Bryce Karl
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Purification of recycled and renewable organic material
- Patent number 11,499,104
- Issue date Nov 15, 2022
- Neste Oyj
- Blanka Toukoniitty
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Grant
Lubricant base stock production from recycled oil
- Patent number 11,441,080
- Issue date Sep 13, 2022
- ExxonMobil Technology and Engineering Company
- Richard C. Dougherty
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Patents Applicationslast 30 patents

Information Patent Application
A METHOD FOR PRODUCING RENEWABLE C3 HYDROCARBONS AND RENEWABLE AROM...
- Publication number 20250011658
- Publication date Jan 9, 2025
- NESTE OYJ
- Eveliina MÄKELÄ
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD FOR RECYCLING WASTE ENGINE OIL
- Publication number 20240409821
- Publication date Dec 12, 2024
- PurePath(Chongqing) Petroleum Engineering Co., LTD
- Qiwei Zheng
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Integrated Process for Complete Conversion of Residue Feedstock
- Publication number 20240409830
- Publication date Dec 12, 2024
- AXENS
- James J. Colyar
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD AND SYSTEM FOR PRODUCING AT LEAST ONE OIL PRODUCT FROM WASTE...
- Publication number 20240400913
- Publication date Dec 5, 2024
- SKF MFR TECHNOLOGY AB
- Lasse HURNASTI
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
APPARATUS, METHOD AND CATALYST FOR PROCESSING HYDROCARBONS FOR RECY...
- Publication number 20240376386
- Publication date Nov 14, 2024
- REMARKABLE ENERGY LTD
- Edward Douglas Miller
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD FOR PRODUCING PAO-BASED CIRCULAR PRODUCTS FROM RECYCLED USED...
- Publication number 20240360371
- Publication date Oct 31, 2024
- Chevron Phillips Chemical Company LP
- Eric J. Netemeyer
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Composition and Method of Use of a Concentrated Asphaltene Polymer...
- Publication number 20240327747
- Publication date Oct 3, 2024
- Safety-Kleen Systems, Inc.
- Abdel Mekhhal
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
PREHEATING PROCESS MODULE INTEGRATED WITH COKE HANDLING SYSTEM FOR...
- Publication number 20240294835
- Publication date Sep 5, 2024
- Indian Oil Corporation Limited
- Shahil SIDDIQUI
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
INTEGRATED METHOD FOR PROCESSING PYROLYSIS OILS OF PLASTICS AND/OR...
- Publication number 20240240091
- Publication date Jul 18, 2024
- IFP Energies nouvelles
- Alain QUIGNARD
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PURIFICATION OF RECYCLED AND RENEWABLE ORGANIC MATERIAL
- Publication number 20240209268
- Publication date Jun 27, 2024
- NESTE OYJ
- Blanka TOUKONIITTY
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
ALKALI-ENHANCED HYDROTHERMAL PURIFICATION OF PLASTIC PYROLYSIS OILS
- Publication number 20240209267
- Publication date Jun 27, 2024
- NESTE OYJ
- Ville PAASIKALLIO
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD AND SYSTEM FOR RE-REFINING AND UPGRADING USED OIL
- Publication number 20240132799
- Publication date Apr 25, 2024
- ReGen III Corp.
- Gordon Driedger
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Integration of Polymeric Waste Co-Processing in Cokers to Produce C...
- Publication number 20240093102
- Publication date Mar 21, 2024
- EXXONMOBIL CHEMICAL PATENTS INC.
- Bryan A. Patel
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Emergency Distillation Column and Use Thereof
- Publication number 20240084202
- Publication date Mar 14, 2024
- Itelyum Regeneration S.r.l.
- Francesco Gallo
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
HYDROCRACKING CATALYST AND PROCESS USING MOLECULAR SIEVE SSZ-91
- Publication number 20240084205
- Publication date Mar 14, 2024
- Chevron U.S.A. Inc.
- Viorel DUMA
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
PROCESS AND SYSTEM FOR HYDROTREATING RENEWABLE FEEDSTOCK
- Publication number 20240059979
- Publication date Feb 22, 2024
- GREEN TECHNOLOGY RESEARCH CO., LTD.
- Supakorn SIRIMITRTRAKUL
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Solvent Composition Prepared from Waste Oil and Method of Preparing...
- Publication number 20240018421
- Publication date Jan 18, 2024
- SK INNOVATION CO., LTD.
- Do Kyoung Kim
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
USE OF BLEND OF WASTE PLASTIC WITH BIO FEED FOR CHEMICALS PREPARATION
- Publication number 20240010940
- Publication date Jan 11, 2024
- Chevron U.S.A. Inc.
- Tengfei LIU
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD FOR REDUCING DEACTIVATION OF A HYDROTREATMENT CATALYST
- Publication number 20230323215
- Publication date Oct 12, 2023
- NESTE OYJ
- Petri LINDQVIST
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
CO-PROCESSING OF PYROLYSIS OILS, LUBRICANTS, AND/OR PLASTICS
- Publication number 20230257664
- Publication date Aug 17, 2023
- ExxonMobil Technology and Engineering Company
- Aaron Sattler
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Multi-Stage Process and Device for Treatment Heavy Marine Fuel and...
- Publication number 20230151282
- Publication date May 18, 2023
- Magëmä Technology LLC
- Michael Joseph Moore
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
ENGINEERED FEED PROCESS IN CATALYTIC CRACKING, SIMULTANEUS RADICALI...
- Publication number 20230126518
- Publication date Apr 27, 2023
- SEYED RAMIN HABIBI
- C01 - INORGANIC CHEMISTRY
Information Patent Application
Method for Removing Chlorine from High Chlorine Content Waste Oil U...
- Publication number 20230130559
- Publication date Apr 27, 2023
- SK INNOVATION CO., LTD.
- Dokyoung Kim
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
METHOD OF PROVIDING A BIO-OIL TO A HYDRODEOXYGENATION REACTOR
- Publication number 20230121267
- Publication date Apr 20, 2023
- REG Synthetic Fuels, LLC
- Ramin Abhari
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
WASTE RECOVERING SYSTEM AND METHOD THEREOF
- Publication number 20230079076
- Publication date Mar 16, 2023
- RIGORTECH SDN. BHD.
- Chze Loong Tan
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
PROCESS OF PRODUCING HIGH-QUALITY LUBE BASE OIL BY USING REFINED OI...
- Publication number 20230054666
- Publication date Feb 23, 2023
- SK INNOVATION CO., LTD.
- Young Wook JEON
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
APPARATUS, METHOD AND CATALYST FOR PROCESSING HYDROCARBONS FOR RECY...
- Publication number 20230053932
- Publication date Feb 23, 2023
- Edward Douglas Miller
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Application
FREE FATTY ACID SEPARATION AND RECOVERY USING RESIN
- Publication number 20220403257
- Publication date Dec 22, 2022
- THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
- Vijay Singh
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
RECYCLE CONTENT MIXED ESTERS AND SOLVENTS
- Publication number 20220380680
- Publication date Dec 1, 2022
- Eastman Chemical Company
- David Eugene Slivensky
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
Information Patent Application
Solvent Composition Prepared from Waste Oil and Method of Preparing...
- Publication number 20220372383
- Publication date Nov 24, 2022
- SK INNOVATION CO., LTD.
- Hee Jung Jeon
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Method and system for re-refining and upgrading used oil

Process for integrated production of renewable fuels and chemicals

Recycle content mixed esters and solvents

Apparatus, method and catalyst for processing hydrocarbons for recy...

Co-processing of pyrolysis oils, lubricants, and/or plastics

Solvent composition prepared from waste oil and method of preparing...

Process and system for producing light olefins from inferior oils

Co-processing of renewable jet and diesel

Method of providing a bio-oil to a hydrodeoxygenation reactor

UMO-sourced, clean, efficient, non-catalytic cracking and re-refini...

Process for manufacturing of renewable hydrocarbons from renewable...

Purification of recycled and renewable organic material

Alkali-enhanced hydrothermal purification of plastic pyrolysis oils

Slurry-phase catalyst compositions and methods of making the same

Process of producing high-quality lube base oil by using refined oi...

Method and system for re-refining and upgrading used oil

Solvent composition prepared from waste oil and method of preparing...

Process and plant for producing hydrocarbons with reduced CO2-footp...

Free fatty acid separation and recovery using resin

Processes for converting petroleum based waste oils into light and...

Preparation of an aviation fuel composition

System and process for heavy fuel oil pyrolysis

Method for reducing fouling in catalytic cracking

Catalyst column and thermal cracking system

Thermal cracking system

Preparation of a fuel blend

Engineered feed process in catalytic cracking, simultaneus radicali...

Low-pressure catalytic conversion of used motor oil to diesel fuel

Purification of recycled and renewable organic material

Lubricant base stock production from recycled oil

Patents Applicationslast 30 patents

A METHOD FOR PRODUCING RENEWABLE C3 HYDROCARBONS AND RENEWABLE AROM...

METHOD FOR RECYCLING WASTE ENGINE OIL

Integrated Process for Complete Conversion of Residue Feedstock

METHOD AND SYSTEM FOR PRODUCING AT LEAST ONE OIL PRODUCT FROM WASTE...

APPARATUS, METHOD AND CATALYST FOR PROCESSING HYDROCARBONS FOR RECY...

METHOD FOR PRODUCING PAO-BASED CIRCULAR PRODUCTS FROM RECYCLED USED...

Composition and Method of Use of a Concentrated Asphaltene Polymer...

PREHEATING PROCESS MODULE INTEGRATED WITH COKE HANDLING SYSTEM FOR...

INTEGRATED METHOD FOR PROCESSING PYROLYSIS OILS OF PLASTICS AND/OR...

PURIFICATION OF RECYCLED AND RENEWABLE ORGANIC MATERIAL

ALKALI-ENHANCED HYDROTHERMAL PURIFICATION OF PLASTIC PYROLYSIS OILS

METHOD AND SYSTEM FOR RE-REFINING AND UPGRADING USED OIL

Integration of Polymeric Waste Co-Processing in Cokers to Produce C...

Emergency Distillation Column and Use Thereof

HYDROCRACKING CATALYST AND PROCESS USING MOLECULAR SIEVE SSZ-91

PROCESS AND SYSTEM FOR HYDROTREATING RENEWABLE FEEDSTOCK

Solvent Composition Prepared from Waste Oil and Method of Preparing...

USE OF BLEND OF WASTE PLASTIC WITH BIO FEED FOR CHEMICALS PREPARATION

METHOD FOR REDUCING DEACTIVATION OF A HYDROTREATMENT CATALYST

CO-PROCESSING OF PYROLYSIS OILS, LUBRICANTS, AND/OR PLASTICS

Multi-Stage Process and Device for Treatment Heavy Marine Fuel and...

ENGINEERED FEED PROCESS IN CATALYTIC CRACKING, SIMULTANEUS RADICALI...

Method for Removing Chlorine from High Chlorine Content Waste Oil U...

METHOD OF PROVIDING A BIO-OIL TO A HYDRODEOXYGENATION REACTOR

WASTE RECOVERING SYSTEM AND METHOD THEREOF

PROCESS OF PRODUCING HIGH-QUALITY LUBE BASE OIL BY USING REFINED OI...

APPARATUS, METHOD AND CATALYST FOR PROCESSING HYDROCARBONS FOR RECY...

FREE FATTY ACID SEPARATION AND RECOVERY USING RESIN

RECYCLE CONTENT MIXED ESTERS AND SOLVENTS

Solvent Composition Prepared from Waste Oil and Method of Preparing...