Patents Assigned to PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
  • Publication number: 20240131503
    Abstract: The present invention relates to a catalyst for aromatization of alkanes having 4 to 7 carbon atoms, especially alkanes having carbon atoms. Said catalyst has the efficacy in the aromatics production with high conversion and high selectivity of aromatics or high yield of aromatics, wherein said catalyst comprises zeolite, at least 1 transition metal from group VIII transition metal in a range of 0.1 to 2% by weight based on the total weight of the catalyst, and at least 1 metal from group IIIA metal in a range of 0.1 to 5% by weight based on the total weight of the catalyst. Said catalyst is treated and dried with a microwave at a power in a range from 400 to 1,000 watts after step of contacting with a solution comprising at least 1 transition metal salt from group VIII transition metal and after step of contacting with a solution comprising at least 1 group IIIA metal salt.
    Type: Application
    Filed: September 22, 2021
    Publication date: April 25, 2024
    Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Metta CHAREONPANICH, Waleeporn DONPHAI, Pariyawalee SANGTEANTONG, Yutthana WONGNONGWA, Siriporn JUNGSUTTIWONG, Sitthiphong PENGPANICH, Kaew-arpha THAVORNPRASERT
  • Publication number: 20240059812
    Abstract: The present invention relates to a process to control the molecular weight distribution of polyethylene and to reduce the smoke quantity during the formation of polyethylene, wherein the process for preparing polyethylene having narrow molecular weight distribution, comprising the following steps: a) continuously polymerizing ethylene by subjecting ethylene stream, hydrogen, solvent, Ziegler-Natta catalyst comprising titanium, co-catalyst, external electron donor selected from alkoxysilane compound into the reactor to produce polymer slurry; b) removing residue reaction gas from the polymer slurry stream obtained from a) and c) separating polymer stream in b) from the solvent.
    Type: Application
    Filed: December 15, 2021
    Publication date: February 22, 2024
    Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Worawat CHUENCHEEP, Nitipat PHICHITSURATHAWORN
  • Patent number: 11801499
    Abstract: The present invention relates to a catalyst for producing light olefins from C4-C7 hydrocarbons from catalytic cracking reaction and the production process of light olefins from said catalyst, wherein said catalyst has core-shell structure comprising a zeolite core with mole ratio of silicon to aluminium (Si/Al) between 2 to 250 and layered double hydroxide shell (LDH). The catalyst according to the invention provides high percent conversion of substrate to products and high selectivity to light olefins product.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: October 31, 2023
    Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Chularat Wattanakit, Chadatip Rodaum, Anawat Thivasasith, Sitthiphong Pengpanich
  • Patent number: 11781021
    Abstract: Corrosion resistance coatings and dicyclopentadiene modified ester oligomers useful in corrosion resistant coatings. The corrosion resistant coatings exhibit improved corrosion resistance, improved adhesion, lower toxicity, unlimited pot life, and/or lower volatile organic compounds (VOCs).
    Type: Grant
    Filed: June 21, 2018
    Date of Patent: October 10, 2023
    Assignee: PTT Global Chemical Public Company Limited
    Inventor: Arne Matthew Terwillegar
  • Patent number: 11685938
    Abstract: The subject of this invention is improvements in the yield and titer of biological production of muconic acid by fermentation. Increased activity of one or more enzymes involved in the muconic acid pathway leads to increased production of muconic acid.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: June 27, 2023
    Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Ryan Sillers, Theron Hermann, Michelle Spencer, Russell Udani, R. Rogers Yocum
  • Publication number: 20230125196
    Abstract: The present invention relates to a process for removing arsine from hydrocarbon mixture having 2 to 4 carbon atoms. Said process comprises the contact of the hydrocarbon mixture having 2 to 4 carbon atoms with the adsorbent, wherein said adsorbent is the metal organic frameworks (MOFs) comprising: a) at least 1 transition metal selected from group 1B metal, group 2B metal, and group 4B metal, and b) the organic ligand selected from dicarboxylic acid compound or tricarboxylic acid compound, and wherein said adsorbent is subjected to the treatment with alcohol.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 27, 2023
    Applicant: PTT Global Chemical Public Company Limited
    Inventors: Salinthip LAOKROEKKIAT, Sitthiphong PENGPANICH, Kaew-arpha THAVORNPRASERT
  • Publication number: 20230038518
    Abstract: The present invention relates to a catalyst for producing light olefins from catalytic cracking of hydrocarbon having 4 to 7 carbon atoms, wherein said catalyst comprises zeolite having the ring arrangement of 8 to 10 silicon atoms and hierarchical zeolite comprising 0.1 to 2 nm of micropore, 2 to 50 nm of mesopore, and greater than 50 nm of macropore, wherein the mesopore and macropore are greater than or equal to 40% when comparing to total pore volume, and said catalyst comprises element having 2+ to 4+ oxidation state with 0.1 to 3% by weight of the catalyst.
    Type: Application
    Filed: December 23, 2020
    Publication date: February 9, 2023
    Applicant: PTT Global Chemical Public Company Limited
    Inventors: Chularat WATTANAKIT, Chadatip RODAUM, Anawat THIVASASITH, Sitthiphong PENGPANICH, Kaew-arpha THAVORNPRASERT
  • Publication number: 20220411745
    Abstract: The present invention discloses a genetically engineered Kluyveromyces sp. yeast cell comprising at least a genetic modification that inactivates or deletes a nucleic acid sequence encoding for transcription factor SEQ ID No. 2, particularly Haal. The genetically engineered yeast cell according to this invention has an improvement of lactic acid tolerance, lactic acid production or a combination thereof as compared to the parental.
    Type: Application
    Filed: August 19, 2019
    Publication date: December 29, 2022
    Applicant: PTT Global Chemical Public Company Limited
    Inventors: Phatthanon Prasitchoke, Natthawut Poomsila, Kraileark Kittisuriyanont, Narong Kaewsuwan, Wikanda Techanan
  • Patent number: 11517885
    Abstract: The present invention relates to a catalyst for producing olefins from dehydrogenation of alkane having 2 to 5 carbon atoms and a method for producing olefins using said catalyst, wherein said catalyst comprises a hierarchical zeolite nanosheet having a silica to alumina (SiO2/AI2O3) ratio more than 120 and group X metal(s) in a range of 0.3 to 5% by weight. The catalyst according to the conversion of precursor to yields and high olefins selectivity.
    Type: Grant
    Filed: November 2, 2018
    Date of Patent: December 6, 2022
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Chularat Wattanakit, Thittaya Yutthalekha, Anawat Thivasasith, Wannaruedee Wannapakdee, Pannida Dugkhuntod, Duangkamon Suttipat
  • Patent number: 11447802
    Abstract: Yeast strains and fermentation process for producing D-lactic acid and L-lactic acid are disclosed with higher titer, higher yield, shorter time, lower pH, and higher average specific productivity.
    Type: Grant
    Filed: February 15, 2019
    Date of Patent: September 20, 2022
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Sudhanshu Vijay Dole, Theron Hermann, Sean Joseph Regan, Mark Andrew Sheff, Russell Lizardo Udani, R. Rogers Yocum
  • Publication number: 20220135502
    Abstract: The present invention relates to the adsorbent for separating organochloride compound from liquid hydrocarbon and a process thereof, wherein said adsorbent is the silica and aluminosilicate composite having infiltrate structure subjected to the modification of the surface property with small metal having high electronegativity.
    Type: Application
    Filed: April 23, 2020
    Publication date: May 5, 2022
    Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Yanee VONGACHARIYA, Sitthiphong PENGPANICH, Metta CHAREONPANICH, Waleeporn DONPHAI, Thongthai WITOON, Preeyaporn RUENGRUNG
  • Publication number: 20220090149
    Abstract: The present invention discloses a genetically engineered Kluyveromyces sp. yeast strain that is capable of producing lactic acid from carbon source selected from glucose, fructose, sucrose or a mixture thereof wherein the genetically engineered yeast comprises at least one heterologous DNA cassette that confers production of a protein functioning as a fructose importer. The genetically engineered yeast strain according to this invention has an improvement of fructose utilization and use fructose as a faster rate than conventional strain, allowing for shorter fermentation times and improved economics.
    Type: Application
    Filed: December 23, 2019
    Publication date: March 24, 2022
    Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Sudhanshu Vijay DOLE, Joel Stewart SCHMID, R. Rogers YOCUM, Theron HERMANN, Russell Lizardo UDANI, Sean Joseph REGAN, Mark Andrew SHEFF, Michelle SPENCER, Ryan SILLERS, Phatthanon PRASITCHOKE, Natthawut POOMSILA
  • Patent number: 11253841
    Abstract: The present invention relates to a copper aluminium oxide catalyst for preparing a furfuryl alcohol from a furfural, comprising a copper-alumina spinel structure and having surface area in the range from 0.5 to 5 m2/g; wherein said catalyst is prepared from a process comprising the following steps: (i) dissolving copper salt and aluminium salt in a solvent; (ii) adding organic acid into mixture obtained from step (i); (iii) heating mixture obtained from step (ii) at the temperature higher than 150° C. until said mixture is combusted into solid; and (iv) calcining the solid obtained from step (iii) at the temperature in the range from 700 to 1,000° C. The catalyst according to the invention gives a high conversion of furfural to furfuryl alcohol and high furfuryl alcohol yield.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: February 22, 2022
    Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Kajornsak Faungnawakij, Chuleeporn Luadthong, Siripit Songtawee, Chalita Ratanatawanate
  • Patent number: 11242507
    Abstract: The present invention relates to a novel mutant strain Aspergillus aculeatus E14-292 and a genetic modification process of said strain, wherein the mutant strain according to this invention can produce cellulase and xylanase more than the BCC199 (wild type). Moreover, the obtained enzymes can be used to digest the pretreatment bagasse to further produce sugars effectively.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 8, 2022
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Verawat Champreda, Surisa Suwannarangsee, Jantima Arnthong, Chatuphon Siamphan, Aphisit Poonsrisawat, Napong Ketsub, Mahattanee Phinyo, Wikanda Techanan, Natthawut Poomsila, Phatthanon Prasitchoke
  • Patent number: 11236375
    Abstract: The present invention relates to a novel mutant strain Clostridium thermocellum M2_15-C8 and a genetic modification process of said bacteria, wherein the mutant strain according to this invention can produce cellulase and xylanase more than the wild type. Moreover, the obtained enzymes can be used to digest the pretreated bagasse to further produce sugars effectively.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 1, 2022
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Chakrit Tachaapaikoon, Khanok Ratanakhanokchai, Patthra Pason, Rattiya Waeonukul, Prattana Ketbot, Wikanda Techanan, Kraileark Kittisuriyanont, Narong Kaewsuwan
  • Patent number: 11179709
    Abstract: This present invention relates to a catalyst composition for a production process of ?-lactone from carbon dioxide and 1,3-butadiene that can efficiently catalyze the synthesis reaction of ?-lactone with good selectivity of ?-lactone, wherein said catalyst composition comprising: a) palladium metal complexes as shown in structure (I) [Formula should be inserted here] wherein, R1, R2, R3 and R4 independently represents a group selected from a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an amine group, or optionally an alkenyl group, an alkynyl group, a phenyl group, a benzyl group, or a cyclic hydrocarbon group comprising a hetero atom; and b) phosphorus compound selected from a phosphine group having a general formula [Formula should be inserted here], wherein R5 is selected from an alkyl group, a cycloalkyl group, or an aryl group.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: November 23, 2021
    Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Sucheewin Chotchatchawankul, Phonpimon Wongmahasirikun, Sophon Kaeothip, Khamphee Phomphrai
  • Publication number: 20210277429
    Abstract: The subject of this invention is improvements in the yield and titer of biological production of muconic acid by fermentation. Increased activity of one or more enzymes involved in the muconic acid pathway leads to increased production of muconic acid.
    Type: Application
    Filed: May 21, 2021
    Publication date: September 9, 2021
    Applicant: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Ryan SILLERS, Theron HERMANN, Michelle SPENCER, Russell UDANI, R. Rogers YOCUM
  • Patent number: 11098158
    Abstract: This invention relates to hybrid polyols useful in the manufacture of polyurethane. The hybrid polyols of the present invention is derived by copolymerizing or grafting a traditional polyester polyol onto a natural oil polyol. In the preferred embodiment of the present invention, the traditional polyester polyol grafted onto natural oil polyol contains a high level of bio-renewable content. The hybrid polyols of the present invention with high level of bio-renewable content is useful in the manufacture of polyurethane either alone or in combination with polyester polyol or polyether polyol derived from petrochemical sources.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: August 24, 2021
    Assignee: PTT Global Chemical Public Company Limited
    Inventors: Arne Matthew Terwillegar, Thidarat Tosukhowong, Charliss Denniston, Nuttara Jamonnak
  • Patent number: 11072807
    Abstract: This invention relates to the biosynthesis of organic acids in genetically modified microorganisms. More specifically, this invention provides genetically modified microorganisms that are particularly tolerant to organic acids at low pH and are capable of producing organic acids by fermentation at low pH.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: July 27, 2021
    Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: R. Rogers Yocum, Sudhanshu Dole, Janice G. Pero
  • Patent number: 11059919
    Abstract: This invention relates to polymerization of muconic acid and its derivatives. Muconic acid useful for the invention can be in any of its isomeric forms including cis, cis-muconic acid (ccMA), cis, trans-muconic acid (ctMA), and trans, trans-muconic acid (ttMA). Muconic acid used in the invention can be derived either from renewable carbon resources through biological fermentation or from non-renewable petrochemical resources through biological fermentation or chemical conversion.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: July 13, 2021
    Assignee: PTT GLOBAL CHEMICAL PUBLIC COMPANY LIMITED
    Inventors: Jay L. Milan, Michael Mang, Cenan Ozmeral