共查询到18条相似文献,搜索用时 62 毫秒
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介绍了近几年昊华西南化工有限责任公司联碱厂煅烧3.2 MPa蒸汽的消耗状况,并根据重碱煅烧蒸汽消耗的影响因素,制定了相应的技术和管理措施,从而达到降低煅烧3.2 MPa蒸汽消耗的目的,取得了较好的经济效益。 相似文献
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CO2汽提法尿素工艺是市场占有率最大的尿素工艺,但经历数十年的发展,蒸汽消耗始终无法大幅度降低。介绍了CO2汽提法尿素工艺的技术特点,在分析了影响蒸汽消耗的各种因素的基础上,提出了增加中压段是CO2汽提法尿素工艺降低蒸汽消耗的根本途径。 相似文献
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The venting operation in retorts operating under steam pressure is an important step in the sterilization process and it aims to steam flush the air from inside the equipment in order to ensure sterilization safety. This part of the process is short in time but intensive in steam consumption, and hence this study evaluated an alternative venting operation based on the use of water to displace the air, aimed at reducing this energy consumption. The objective was to evaluate the energy consumption in a steam retort loaded with thermally convective and conductive products, comparing the conventional and alternative venting processes. The steam flow rates showed that the alternative venting process reduced steam consumption by up to 50% as compared to conventional venting. 相似文献
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Tatsuro Sawada Yoshitoshi Nakamura 《Journal of chemical technology and biotechnology (Oxford, Oxfordshire : 1986)》2001,76(2):139-146
The rational operational condition for maximizing the pretreatment effect on plant biomass while minimizing heat required was investigated. Eucalyptus globulus chips were used to evaluate the operational method for the most efficient conversion of plant biomass into useful materials by steam explosion. The energy consumption required to carry out the steam explosion was calculated by considering the mass balances of the water, the wood component, and the heat balance in the steam explosion apparatus. The energy consumption increased significantly with the increase of steam pressure and steaming time, and decreased rapidly with increase of the thickness of the heat‐insulating material in the steam explosion apparatus. The amount of methanol‐soluble lignin, a low molecular weight lignin, was measured experimentally under various operational conditions such as steam pressure and steaming time. The steam explosion at the steam pressure of 3.9 MPa and steaming time of 1.1 min was the most effective method for maximizing the delignification with low energy consumption. © 2001 Society of Chemical Industry 相似文献
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热量回收系统工艺参数对变换蒸汽消耗的影响 总被引:1,自引:0,他引:1
采用对变换反应器和变换工艺进行计算机模拟、求出变换系统的吨氨蒸汽消耗的方法,对热量回收系统不同工艺参数(主要包括饱和热水塔及水加热器的各项温度参数,系统阻力,蒸汽温度等)条件下的吨氨蒸汽消耗分别进行了计算,并给出了各参数与吨氨蒸汽消耗之间的变化关系。 相似文献
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结合硫酸铵蒸发结晶工艺,研究蒸汽喷射热泵在刮板式薄膜蒸发中回收二次蒸汽的应用,通过对加热蒸汽耗量的计算,得出薄膜蒸发器配套使用热泵蒸发的工艺所需要的蒸汽耗量比未使用热泵蒸发工艺的蒸汽耗量明显减少。并对配套使用的蒸汽喷射泵进行了简单设计。 相似文献