Patents by Inventor Yana Meliana

Yana Meliana has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process to produce oil with low polyaromatic hydrocarbon content
    Patent number: 10308881
    Abstract: Process for TDAE-1 and TDAE-2 production is initiated with production of DAE Feeds which have kinematic viscosity at 100° C. ranges 24-67 cSt, followed by mixing them with solvent to yield Mixture of DAE Feed with density ranges 0.75-0.85 kg/liter and further contacting the Mixture of DAE Feed with solvent, like furfural, NMP and DMSO to facilitate a counter current liquid-liquid extraction, wherein the TDAE-1 and TDAE-2 are produced at ratio of polar solvent to Mixture of DAE Feed ranges 1.7-2.0 and 0.5-1.7, respectively. The PCA content of TDAE-1 and TDAE-2 are less than 3% weight and 3-20% weight. The amount of 8 Grimmer polyaromatics hydrocarbon content in the TDAE-1 and TDAE-2 are the same, that is, less than 10 mg/kg including Benzo (a) pyrene substance as much as less than 1 mg/kg.
    Type: Grant
    Filed: December 5, 2016
    Date of Patent: June 4, 2019
    Assignees: PT Pertamina (Persero), PT Pura Barutama
    Inventors: Yana Meliana, Supriyantini Nunik, Joseph Tundang, Sudiyatmoko Bambang
  • Process to produce process oil with low polyaromatic hydrocarbon content
    Patent number: 9512366
    Abstract: Process for TDAE-1 and TDAE-2 production is initiated with production of DAE Feeds which have kinematic viscosity at 100° C. ranges 24-67 cSt, followed by mixing them with solvent to yield Mixture of DAE Feed with density ranges 0.75-0.85 kg/liter and further contacting the Mixture of DAE Feed with solvent, like furfural, NMP and DMSO to facilitate a counter current liquid-liquid extraction, wherein the TDAE-1 and TDAE-2 are produced at ratio of polar solvent to Mixture of DAE Feed ranges 1.7-2.0 and 0.5-1.7, respectively. The PCA content of TDAE-1 and TDAE-2 are less than 3% weight and 3-20% weight. The amount of 8 Grimmer polyaromatics hydrocarbon content in the TDAE-1 and TDAE-2 are the same, that is, less than 10 mg/kg including Benzo (a) pyrene substance as much as less than 1 mg/kg.
    Type: Grant
    Filed: April 25, 2011
    Date of Patent: December 6, 2016
    Assignees: PT PERTAMINA (PERSERO), PT PURA BARUTAMA
    Inventors: Yana Meliana, Nunik Supriyantini, Joseph Tundang, Bambang Sudiyatmoko
  • Process To Produce Process Oil With Low Polyaromatic Hydrocarbon Content
    Publication number: 20130144092
    Abstract: Process for TDAE-1 and TDAE-2 production is initiated with production of DAE Feeds which have kinematic viscosity at 100° C. ranges 24-67 cSt, followed by mixing them with solvent to yield Mixture of DAE Feed with density ranges 0.75-0.85 kg/liter and further contacting the Mixture of DAE Feed with solvent, like furfural, NMP and DMSO to facilitate a counter current liquid-liquid extraction, wherein the TDAE-1 and TDAE-2 are produced at ratio of polar solvent to Mixture of DAE Feed ranges 1.7-2.0 and 0.5-1.7, respectively. The PCA content of TDAE-1 and TDAE-2 are less than 3% weight and 3-20% weight. The amount of 8 Grimmer polyaromatics hydrocarbon content in the TDAE-1 and TDAE-2 are the same, that is, less than 10 mg/kg including Benzo (a) pyrene substance as much as less than 1 mg/kg.
    Type: Application
    Filed: April 25, 2011
    Publication date: June 6, 2013
    Applicants: PT PURA BARUTAMA, PT PERTAMINA (PERSERO)
    Inventors: Yana Meliana, Nunik Supriyantini, Joseph Tundang, Bambang Sudiyatmoko