Preservation Ways and Energy Consumption in Oil Refinery

CATEGORY: ENERGY MANAGEMENT
International Journal of Chemistry; 2013[02]
Preservation Ways and Energy Consumption in Oil Refinery
Amir Samimi
amirsamimi1161@gmail.com
Department of Chemical Engineering, Mahshahr Branch, Islamic Azad University, Mahshahr, IRAN
Abstract
Preservation increase and energy return is one of the effective tools in saving. Studies show that energy consumption for each productive crude oil barred is dependence on the refinery complicated in reconfiguration of forge. Energy recovery increase in refinery over time that is due to economic factors like consumption fuel increase, it means that return increase is consistent with fuel price. It developed use of crude oil capability, distillation products in modern refinery. Modern refinery recovery dead to 10 to 15% saving in energy consumption, Modern refinery .can developed energy return in several ways such as: Thermal exchange increase between processes streams, effective hydro exchange in process units, use of heaters with high thermal return and use of gas turbines with preheated air and produce steam of waste thermal. This paper investigates management ways and energy consumption recovery in different parts of oil refinery.
Introduction
Energy preservation in the date of 1960 is economic simple relative problem. Need for use and energy effective management is developed in refinery of con try development. This need from significant Increase in crude oil price is result from to oil recession in 1979 and 1973. Energy preservation and efficiency recovery in each industrial part is one of the effective tools decrease in saving. Successful recovery of energy resources can decrease operation cost and utilization increase. Crude oil industry one of the industries that take a clot of energy, Energy consumption in refinery is variable for over time and variation in crude oil kinds. Also operation factors like utilization of capability, repair and preserve costs and life of equipment to energy consumption affect to refinery. There are several recovery opportunities in refinery for energy consumption decrease. major ere as for energy efficiency recovery is such as: utility (30% ) heaters (20%) process recovery (15%) thermal exchanger (15%) motors (10%) and others are as (10%) . among this ere as, utility recovery, thermal exchanger and heater needed to much investment . they pay a lot of attention to activities such as processes investigation, installation the new hydro recovery process, Preserve development methods for energy utilization increase. fuel flexibility can developed present energy selection for refinery. complicated refinery can developed energy efficiency with below methods. Increase thermal exchange between process stream, thermal exchange between and inside process units and heated foods between units, use of heater with high recovery, gas turbines with produce steams for mechanical energy in high pressures thermal and preheated air, use hydraulic turbines with high return use of steam with high pressure, pumps and condenser with produce high gaps. Energy consumption should evaluate based on integrity. This evolution should include energy consumed by refinery and based on net sell and transmission to out of refinery. Effective process can have significant effect to refinery energy consumption. Development of new process like fuel biology and inversion refinery gasses to high level fuel can decrease fuel consumption. Another priority is process development that is substitute for present process. This includes process for distillation substitute and reforming gas for produce hydrogen. Environmental limits. Effect to consumption fuel quality and dead refinery to saving in energy consumption, energy efficiency recovery in refinery take in to account at first in design phase and via recovery between energy of cost and thermal recovery equipment.
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