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在当今高油价的时代,节能新技术在炼油企业中的重要性十益显现。中国石油化工股份有限公司镇海炼化分公司深入研究能量三环节即能量转换、能量工艺利用与能量回收三环节,有针对性地采取了一些节能新技术。优化工艺总用能。如通过夹点技术优化设计常减压装置,目前该公司的三套常减压装置的能耗水平处于国际先进水平,如通过油化一体化联合使得氢气资源得到优化利用,使多套临氢系统的新氢压缩机停用,实现节电5000kW,提高机电与加热炉等设备的能量转换效率。采用无级调整与变频器,如Ⅱ加氢裂化装置通过C1002A增上的无级调速技术,提高了新氢压缩机效率,使装置电耗下降1.66千克标油/吨,相当于节能2000吨标油;通过对加热炉的空气预热器进行改进、新技术保温与防腐等,降低了加热炉的排弃热量与散热,提高了加热炉效率。提高低温热量的回收利用。打破装置界限,通过低温热联合来提高低温热的回收利用量:如炼油的催化装置与化工的PX装置间进行低温热联合,炼油的焦化装置与公用工程系统(热电站)间进行低温热联合等。通过多条节能技术措施,提高了能源利用效率,降低了能耗,并取得了明显的经济成效。
In today’s era of high oil prices, the importance of new energy-saving technologies in refineries appears to be on the horizon. China Petrochemical Co., Ltd. Zhenhai Refining & Chemical Branch in-depth study of the energy sector that is energy conversion, energy technology and energy recovery links, targeted to take some new energy-saving technologies. Optimize the total process energy. For example, through the pinch-point technology to optimize the design of atmospheric and vacuum equipment, the company’s three sets of atmospheric and vacuum equipment, the energy consumption level is at the international advanced level, such as through the integration of oil to optimize the use of hydrogen resources, so that multiple sets of hydrogen The system of new hydrogen compressor disabled, to achieve energy-saving 5000kW, improve electrical and heating equipment, such as energy conversion efficiency. Using stepless adjustment and frequency converter, such as Ⅱ hydrocracking unit through the stepless speed regulation C1002A increase the efficiency of the new hydrogen compressor, the device power consumption decreased by 1.66 kg standard oil / ton, equivalent to saving 2,000 tons Standard oil; through the heater of the air preheater to improve the insulation and preservation of new technologies, reducing the furnace heat rejection and heat, improve the efficiency of the furnace. Improve low temperature heat recovery. Breaking the boundaries of installations and increasing low-temperature heat recycling through low-temperature thermal integration: low-temperature thermal integration between refinery catalytic units and chemical PX units, low-temperature thermal integration between refinery coking units and utility systems (thermal stations) Wait. Through a number of energy-saving technical measures to improve energy efficiency, reduce energy consumption, and achieved significant economic results.