A dual-reactor, assembled with the on-line syngas conditioning and methanol synthesis, was successfully applied for high efficient conversion of rich CO2 bio-oil derived syngas to bio-methanol. In the forepart catalys...A dual-reactor, assembled with the on-line syngas conditioning and methanol synthesis, was successfully applied for high efficient conversion of rich CO2 bio-oil derived syngas to bio-methanol. In the forepart catalyst bed reactor, the catalytic conversion can effectively adjust the rich-CO2 crude bio-syngas into the CO-containing bio-syngas using the CuZnA1Zr catalyst. After the on-line syngas conditioning at 450℃, the CO2/CO ratio in the blo- syngas significantly decreased from 6.3 to 1.2. In the rearward catalyst bed reactor, the conversion of the conditioned bio-syngas to bio-methanol shows the maximum yield about 1.21 kg/（kgcatarh） MeOH with a methanol selectivity of 97.9% at 260 ~C and 5.05 MPa using conventional CuZnA1 catalyst, which is close to the level typically obtained in the conventional methanol synthesis process using natural gas. The influences of temperature, pressure and space velocity on the bio-methanol synthesis were also investigated in detail.展开更多
利用自制的酶柱反应器,通过改变反应液流量、溶剂的种类、反应时间以及水含量等参数,考察了大豆油和甲醇在固定化脂肪酶(Cand ida sp.99-125)催化下进行酯交换反应制备生物柴油的工艺条件,并用气相色谱对产物进行了分析。实验结果表明,...利用自制的酶柱反应器,通过改变反应液流量、溶剂的种类、反应时间以及水含量等参数,考察了大豆油和甲醇在固定化脂肪酶(Cand ida sp.99-125)催化下进行酯交换反应制备生物柴油的工艺条件,并用气相色谱对产物进行了分析。实验结果表明,反应液流量和水含量对转化率影响比较大,转化率随反应液流量的增加出现先增后减的趋势,采用正己烷为溶剂要优于其它溶剂。当以固定化的脂肪酶为催化剂、正己烷为溶剂、n(大豆油)∶n(甲醇)=1∶3、m(大豆油)∶m(水)=5∶1、反应时间为24h、反应液流量1.2mL/m in时,产物中主要脂肪酸甲酯的质量分数可以达到91.87%。展开更多
基金This work was supported by the National High Tech Research and Development Program （No.2009AA05Z435）, the National Basic Research Program of Ministry of Science and Technology of China （No.2007CB210206）, and the National Natural Science Foundation of China （No.50772107）.
文摘A dual-reactor, assembled with the on-line syngas conditioning and methanol synthesis, was successfully applied for high efficient conversion of rich CO2 bio-oil derived syngas to bio-methanol. In the forepart catalyst bed reactor, the catalytic conversion can effectively adjust the rich-CO2 crude bio-syngas into the CO-containing bio-syngas using the CuZnA1Zr catalyst. After the on-line syngas conditioning at 450℃, the CO2/CO ratio in the blo- syngas significantly decreased from 6.3 to 1.2. In the rearward catalyst bed reactor, the conversion of the conditioned bio-syngas to bio-methanol shows the maximum yield about 1.21 kg/（kgcatarh） MeOH with a methanol selectivity of 97.9% at 260 ~C and 5.05 MPa using conventional CuZnA1 catalyst, which is close to the level typically obtained in the conventional methanol synthesis process using natural gas. The influences of temperature, pressure and space velocity on the bio-methanol synthesis were also investigated in detail.
文摘利用自制的酶柱反应器,通过改变反应液流量、溶剂的种类、反应时间以及水含量等参数,考察了大豆油和甲醇在固定化脂肪酶(Cand ida sp.99-125)催化下进行酯交换反应制备生物柴油的工艺条件,并用气相色谱对产物进行了分析。实验结果表明,反应液流量和水含量对转化率影响比较大,转化率随反应液流量的增加出现先增后减的趋势,采用正己烷为溶剂要优于其它溶剂。当以固定化的脂肪酶为催化剂、正己烷为溶剂、n(大豆油)∶n(甲醇)=1∶3、m(大豆油)∶m(水)=5∶1、反应时间为24h、反应液流量1.2mL/m in时,产物中主要脂肪酸甲酯的质量分数可以达到91.87%。
