Modified carbon material and method for reducing carbonaceous material ignition temperature

US11234456B2 · kind B2 · utility

Assignee

• CHINA TOBACCO YUNNAN INDUSTRIAL CO., LTD. · CN

Inventors

• Ping Lei · Kunming, CN
• Jianguo TANG · Kunming, CN
• Yongkuan Chen · Kunming, CN
• Shanzhai Shang · Kunming, CN
• Xudong ZHENG · Kunming, CN
• Zhiqiang Li · Jinan, CN
• Weimin GONG · Fuzhou, CN
• Jingmei Han · Kunming, CN
• Chengya Wang · Kunming, CN
• Jun Wu · Kunming, CN
• Pei He · Hengyang, CN
• Xiaoli Xu · Shanghai, CN
• Dongye Cao · Kunming, CN
• Zhihua Liu · Beijing, CN

Key dates

• Filing date: Sep 25, 2019
• Grant date: Feb 1, 2022
• Expiry date: Sep 25, 2039

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E50/30
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A modified carbon material, including a carbonaceous material and a water-insoluble modifier combined with the carbonaceous material, wherein the water-insoluble modifier is CuO, the carbonaceous material is one of or a mixture of biomass carbon or carbon black, a mass of the water-insoluble modifier is being 0.1-10 wt % of the carbonaceous material. The method for preparing the modified carbon material includes: (1) soaking the carbonaceous material in a copper sulfate solution for 5 to 36 hours, and (2) adding an alkali solution into a solution obtained in step (1) to provide a pH value ≥12, and after keeping the pH value for 0.5 to 2 hours, filtering and drying to obtain a solid. (3) using the carbonaceous material as a combustion heat source to reduce the ignition temperature, increase or reduce the peak thermal power temperature.