Research Interests 【 display / non-display 】

Research Interests 【 display / non-display 】

Graduating School 【 display / non-display 】

Graduating School 【 display / non-display 】

• 1995.04

  -

  1997.03

  Akita University   Faculty of Mining   Graduated

Graduate School 【 display / non-display 】

Graduate School 【 display / non-display 】

• 1997.04

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  1999.03

  Akita University  Graduate School, Division of Mining  Master's Course  Completed

Campus Career 【 display / non-display 】

Campus Career 【 display / non-display 】

• 2025.04

  -

  Now

  Akita University   Graduate School of Engineering Science   Department of Materials Science   Applied Chemistry Course   Associate Professor  

• 2018.04

  -

  2025.03

  Akita University   Graduate School of Engineering Science   Department of Materials Science   Applied Chemistry Course   Lecturer  

• 2016.04

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  2018.03

  Akita University   Graduate School of Engineering Science   Department of Materials Science   Applied Chemistry Course   Assistant Professor  

• 2008.04

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  2016.03

  Akita University   Assistant Professor  

• 2001.04

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  2008.03

  Akita University   Assistant Professor  

Research Areas 【 display / non-display 】

Research Areas 【 display / non-display 】

• Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Catalyst and resource chemical process

Research Achievements 【 display / non-display 】

Research Achievements 【 display / non-display 】

◆Original paper【 display / non-display 】

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◆Original paper【 display / non-display 】

Separation and recovery of bitumen from oil sand using CO₂-loaded amine solution and ultrasound

Jie Ren, Hirokazu Okawa, Takahiro Kato

Japanese Journal of Applied Physics   64 ( 2 ) 02SP38   2025.02  [Refereed]

Research paper (journal)   Domestic Co-author

CO₂ desorption using ultrasound at low temperature from CO₂ -loaded amine solution under pressure conditions

Jie Ren, Tomoka Fujita, Hirokazu Okawa and Takahiro Kato

Japanese Journal of Applied Physics   63   03SP47-1 - 03SP47-8   2024.02  [Refereed]

Research paper (journal)   Domestic Co-author

Ultrasound-assisted oxidative desulfurization of bitumen and analysis of sulfur forms in a treated bitumen

Wakisaka Y., Okawa H., Kato T.

Japanese Journal of Applied Physics ( Japanese Journal of Applied Physics )  62 ( SJ )   2023.07  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Elution behavior of mercury in desulfurization gypsum produced in a coal-fired power plant

Dorcas Linda Ernesto Uaciquete, Takahiro Kato, Hirokazu Okawa, Katsuyasu Sugawara, Risehiro Nonaka

Fuel   334   126761-1 - 126761-6   2023  [Refereed]

Research paper (journal)   Domestic Co-author

DOI

Changes in the sulfur forms of subbituminous coals during oxidation with hydrogen peroxide and peracetic acid

Takahiro Kato, Dorcas L.E. Uaciquete, Gai Onodera, Hirokazu Okawa, Katsuyasu Sugawara, Nakorn Worasuwannarak

Fuel   330   125544-1 - 125544-9   2022.08  [Refereed]

Research paper (journal)   International Co-author

DOI

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Presentations 【 display / non-display 】

Presentations 【 display / non-display 】

• Preparation of humic acid from biomass and coals

  Takahiro Kato, Shintaro Miura, Hirokazu Okawa, Katsuyasu Sugawara

  The 9th International Conference on Sustainable Energy and Environment  2024.12  -  2024.12 

• Recovery of Gold and Silver from E waste

  Takahiro Kato, Kosuke Sakusabe, Hirokazu Okawa, Katsuyasu Sugawara

  The 28th Regional Symposium on Chemical Engineering (RSCE)  2024.10  -  2024.10 

• Regeneration and Recycling of Denitration Catalyst

  Takahiro Kato, Kosuke Sakusabe, Hirokazu Okawa,Katsuyasu Sugawara

  20th Asian Pacific Confederation of Chemical Engineering (APCChE) Congress  2023.09  -  2023.09 

• Separation of bitumen from oil sand and oxidative desulfurization of bitumen using condensate and ultrasound at room temperature

  Yoshitaka Wakisaka, Hirokazu Okawa, Takahiro Kato

  20th Asian Pacific Confederation of Chemical Engineering (APCChE) Congress  2023.09  -  2023.09 

• Evaluation of Mg-Al layered double hydroxide as adsorbent for arsenic removal in acidic solution and investigation of adsorbent reusability

  Klarenz Hourani, Hirokazu Okawa, Takahiro Kato

  20th Asian Pacific Confederation of Chemical Engineering (APCChE) Congress  2023.09  -  2023.09 

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