重庆市科学技术研究院立体景观林管护模式研究

摘要

基于重庆市科学技术研究院“重科院立体景观示范工程”科研项目立体景观造景的应用基础上,以重科院立体景观林植物管护为主要研究对象,介绍了重庆市科学技术研究院立体景观的管护情况；按照管理方式总结管护模式,详细研究其立体景观工程管护具体的实施和运用的新技术；总结各个季节的管护规律要点；最后提出重科院现阶段管护的不足之处以及解决之道,以期在未来管护工作中能给予完善.%[Objective]To establish a simulation model of simultaneous desulfuriziation and decarbonization from biogas.[Method]Based on Aspen process simulation software, a simultaneous desulfurization and decarbonization model was established, based on which the impact of absorbent flow, concentration, temperature as well as the pressure and stage number of towers on the removal rate was studied.[Result]The absorbent volume and concentration of MDEA had direct effect on the removal of H2S and C02 in biogas. Considering the cost of absorption process, low concentration of MDEA solution was selected, about 10%. The absorption rate decreased with the increasing temperature, low temperature was better for the absorption process. Increasing the operation pressure will raise the absorption rate of H2S and CO2, and show high selectivity for H2S. To deal with high content of sulfur biogas, the increasing of operation pressure help to improve the process effect. The number of stages showed insignificant impact on the absorption results, generally 11 plates were selected to meet[he purification requirement.[Conclusion]The simulation results provide references for the design and operation of industrial scale absorber.