Study on Properties of Novel Enteromorpha-Based Antioxidation Compound Inhibitors for Spontaneous Combustion of Coal

ABSTRACT

To address environmental damage, improve the efficiency of inhibitors in preventing the spontaneous combustion of coal, an antioxidant-type high-efficiency composite inhibitor was synthesized by solution polymerization. Using scanning electron microscope, water retention test, temperature programmed test, thermogravimetric and other experiments, the inhibition mechanism of inhibitor on coal oxidation was elucidated. The results showed that the new inhibitor successfully realized the resource utilization of EP, and ATP was added to mix well with EPH. Mg and Al elements were evenly distributed on the hydrogel surface. The water absorption rate increased by 21% compared with SAP, and it had good water retention effect within 12 h. This study not only solves the environmental pollution caused by EP, but also successfully realizes the resource utilization, which provides a new scientific basis for inhibiting coal spontaneous combustion and developing new inhibitors.

KEYWORDS:

• Enteromorpha
• coal spontaneous combustion
• attapulgite
• fire prevention
• inhibitor agent

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [51874193 and 42077444]; youth expert of Taishan Scholars (TS202103073), distinguished professor of Taishan Scholars (TS20190935); the Shandong Natural Science Outstanding Youth Fund [ZR2021JQ019]; the Shandong Province Natural Science Foundation [ZR2021QE159, ZR2020ME101 and ZR2021QE296]; Qingchuang Science and Technology Program of Shandong Province University [2019KJG008]; the Key Program of the National Natural Science Foundation of China [51934004]; the Key Program of the National Natural Science Foundation of China [51934004]