文献类型：专利

英文题名：Spherical mesoporous carbon composite material for catching carbon oxide, e.g. in fumes, comprises organic precursor, inorganic template, surfactant, and polyethyleneimine

作者：LIANG X;LING L;LONG D;ZHAN L;LIU X;CHEN Q;QIAO W;WANG J

机构：[1]UNIV EAST CHINA SCI&TECHNOLOGY

申请号：CN101890340-B

公开日：2012-06-06

语种：英文

收录：DERWENT

摘要：NOVELTY - A spherical mesoporous carbon composite material comprises (pts.wt.) organic precursor (5-20), inorganic template (50), surfactant (0.1-3), and polyethyleneimine (5-30). USE - A spherical mesoporous carbon composite material for catching carbon oxide (claimed) in fumes, natural gas, synthetic gas or integrated gasification combined cycle mixed gas. ADVANTAGE - The material has large catching capacity, high catching selectivity, small pressure reduction and small dust amount. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) preparation of the composite material comprising mixing phenol and aldehyde to obtain organic precursor, dissolving the organic precursor in deionized water, adding the catalyst and inorganic template, mixing, adding deionized water (50 g) to the mixture (55-70 g), and pre-polymerizing in a water bath controlled at 40-50 degrees C; mixing liquid paraffin and surfactant (0.01-0.3 v/v), heating at 85 degrees C while stirring, slowly pouring pre-polymerized solution, stirring for 0.5-1 hour, subjecting to water bath controlled at 82-88 degrees C, and aging for 1-3 days to obtain spherical organic-inorganic composite water gel; adding organic solvent B, subjecting to ultrasonic wave for 0.5-1 hour for 3-4 times, soaking obtained product in an organic solvent for 2-3 days while changing the solvent everyday, washing with deionized water, adding anhydrous ethanol and petroleum ether having a volume ratio of 1:3-5, drying at 240-250 degrees C and pressure of 8.5-9.5 MPa for 40-60 minutes with a temperature gradient of 2 degrees C/minute to obtain organic-inorganic composite gel, and setting aside at room temperature for 3-5 days; carbonizing dried material to 800-900?C with a temperature gradient of 1-5 degrees C/minute in the presence of inert gas, maintaining the temperature for 2-3 hours, cooling to room temperature, soaking in hydrofluoric acid for 2-3 days, and washing with water for neutralization to obtain spherical mesoporous carbon material; and dissolving polyethyleneimine in solvent A, stirring at 50-60 degrees C for 10-80 minutes, adding the obtained spherical mesoporous carbon material, stirring, and drying at 30-60 degrees C and pressure of 600-700 mm mercury in the presence of helium or argon and drying further at 100-200 degrees C under normal pressure for 6-20 hours; and (2) use of the spherical mesoporous carbon composite material for catching carbon dioxide comprising filling the spherical mesoporous carbon composite material into a fixed bed adsorption tower; controlling the catching temperature of the fixed bed adsorption tower at 30-110 degrees C and normal pressure; controlling the air speed of the carbon dioxide at 500-5000/hour to pas through the fixed bed adsorption tower; catching the carbon dioxide using the spherical mesoporous carbon composite material in the adsorption tower; performing a variable temperature desorbing at 50-110 (preferably 80-110) degrees C and pressure of 1-10 kPa, or pressure swing desorbing at 70-120 degrees C and pressure of 0.1-20 kPa of the obtained spherical mesoporous carbon composite material under blowing of nitrogen for regeneration.