Chinese parasol fruit hair modified coke demercuration adsorbent and preparation method thereof

• Main Authors: HU ZIRUI, RAN LIKAI, LI JIE, LI MIN, TIAN CHONG, ZHANG JINZHE
• Format: Patent
• Language: Chinese; English
• Published: 06.09.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS; FUELS; LUBRICANTS; METALLURGY; PEAT; PERFORMING OPERATIONS; PETROLEUM, GAS OR COKE INDUSTRIES; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TECHNICAL GASES CONTAINING CARBON MONOXIDE; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention relates to a phoenix tree fruit hair modified coke demercuration adsorbent and a preparation method thereof, and the preparation method comprises the following steps: (1) taking phoenix tree fruit hair powder for pyrolysis to obtain a coke sample; (2) mixing the coke sample with a FeCl3 solution, and carrying out modification treatment; wherein the mass ratio of the coke sample to the FeCl3 is 1: (0.08-0.25); and (3) drying the product obtained by the modification treatment to obtain the phoenix tree fruit hair modified coke demercuration adsorbent. On the basis of biomass pyrolysis and FeCl3 modification, a developed pore structure is formed, strong oxidizing ions are attached to the adsorbent, the physical adsorption capacity and the chemical adsorption capacity of the adsorbent are enhanced, and the mercury adsorption efficiency reaches up to 94.4%; the cost of the adsorbent is reduced, and the problem of allergy of people caused by dispersion of phoenix tree fruit hairs in corresponding seas