The Experts below are selected from a list of 504 Experts worldwide ranked by ideXlab platform

Longcheng Liu - One of the best experts on this subject based on the ideXlab platform.

  • Energy Saving in Crude Oil Atmospheric Distillation Columns by Modifying the Vapor Feed Inlet Tray
    Chemical Engineering & Technology, 2011
    Co-Authors: Mehdi Arjmand, Luis Moreno, Longcheng Liu
    Abstract:

    Optimization of a typical crude oil Atmospheric Distillation Unit and reduction of energy conservation were carried out through modifying the implementation and change in the flash zone of the tower. A conventional procedure in such Units involves the combination of liquid and vapor product of the prefractionation train surge drum upon introduction to the tower. However, it is theoretically illustrated and represented by simulation means that introducing the vapor feed into the upper stages of the Distillation column separately can lead to an energy saving of 12.6 % in the condenser duty, an increased liquid-to-gas flow (L/G) at certain points of the column, and hence to a reduction in diameter and investment costs of new tower designs of approximately US$ 0.7 million a–1. The proposal can be put into practice without the need of additional equipments or additional cost of difficult rerouting the streams. An industrial case study of a steady-state crude oil Distillation Unit is given by simulation provision of AspenHysys™.

Mehdi Arjmand - One of the best experts on this subject based on the ideXlab platform.

  • Energy Saving in Crude Oil Atmospheric Distillation Columns by Modifying the Vapor Feed Inlet Tray
    Chemical Engineering & Technology, 2011
    Co-Authors: Mehdi Arjmand, Luis Moreno, Longcheng Liu
    Abstract:

    Optimization of a typical crude oil Atmospheric Distillation Unit and reduction of energy conservation were carried out through modifying the implementation and change in the flash zone of the tower. A conventional procedure in such Units involves the combination of liquid and vapor product of the prefractionation train surge drum upon introduction to the tower. However, it is theoretically illustrated and represented by simulation means that introducing the vapor feed into the upper stages of the Distillation column separately can lead to an energy saving of 12.6 % in the condenser duty, an increased liquid-to-gas flow (L/G) at certain points of the column, and hence to a reduction in diameter and investment costs of new tower designs of approximately US$ 0.7 million a–1. The proposal can be put into practice without the need of additional equipments or additional cost of difficult rerouting the streams. An industrial case study of a steady-state crude oil Distillation Unit is given by simulation provision of AspenHysys™.

Luis Moreno - One of the best experts on this subject based on the ideXlab platform.

  • Energy Saving in Crude Oil Atmospheric Distillation Columns by Modifying the Vapor Feed Inlet Tray
    Chemical Engineering & Technology, 2011
    Co-Authors: Mehdi Arjmand, Luis Moreno, Longcheng Liu
    Abstract:

    Optimization of a typical crude oil Atmospheric Distillation Unit and reduction of energy conservation were carried out through modifying the implementation and change in the flash zone of the tower. A conventional procedure in such Units involves the combination of liquid and vapor product of the prefractionation train surge drum upon introduction to the tower. However, it is theoretically illustrated and represented by simulation means that introducing the vapor feed into the upper stages of the Distillation column separately can lead to an energy saving of 12.6 % in the condenser duty, an increased liquid-to-gas flow (L/G) at certain points of the column, and hence to a reduction in diameter and investment costs of new tower designs of approximately US$ 0.7 million a–1. The proposal can be put into practice without the need of additional equipments or additional cost of difficult rerouting the streams. An industrial case study of a steady-state crude oil Distillation Unit is given by simulation provision of AspenHysys™.

B A Adewumi - One of the best experts on this subject based on the ideXlab platform.

  • thermoeconomic and environmental assessment of a crude oil Distillation Unit of a nigerian refinery
    Applied Thermal Engineering, 2014
    Co-Authors: M A Waheed, Abayomi Olufemi Oni, S B Adejuyigbe, B A Adewumi
    Abstract:

    Abstract The renovation of refineries should be aimed at achieving the highest possible technical efficiencies at a considerable investment cost and not only at replacing damaged components to attain full capacity utilisation. This study examined a crude Distillation Unit (CDU) of a Nigerian refinery plant comprising the Atmospheric Distillation Unit (ADU), vacuum Distillation Unit (VDU), preflash Unit (PFU), splitter Unit (SPU), stabiliser Unit (SBU) and heat exchanger network (HEN) to determine critical areas of inefficiencies as the plant managements plan renovation. Using real plant data, the CDU was simulated with Aspen Hysys® and the thermoeconomic and environmental analyses were carried out. The results show that the energy and exergy efficiencies of the CDU were 9.0 and 4.0% respectively. The specific CO2 emission was 3.67 kg CO2/bbl. The highly inefficient subUnits accounting for 77.4 and 90.0% of the overall energy and exergy losses respectively and 60.3% of the emission released were the PFU, ADU and HEN. The highly inefficient components are the furnaces which accounted for 51.6% of the overall exergy losses. The environmental and economic analysis also indicated that these components are the most potent for improvement. The columns of the PFU and ADU should be revamped to reduce their energy demands and the HEN should be modified to minimise effluent losses.

Javad Ivakpour - One of the best experts on this subject based on the ideXlab platform.

  • feasibility study on replacement of Atmospheric Distillation column with new sequences in a natural gas condensate refinery
    Computers & Chemical Engineering, 2020
    Co-Authors: Amirhossein Khaliligarakani, Norollah Kasiri, Javad Ivakpour
    Abstract:

    Abstract The Atmospheric Distillation Unit is the main separation Unit in crude oil and natural gas condensate refineries. An Atmospheric Distillation column in a natural gas condensate Unit usually consists of a single column with 3 pump-arounds and 2 side strippers. In this work a new column sequences have been synthesised for the first time using the modified separation matrix method and the results had been compared to other well-known configuration through economic, exergy and exergoeconomic analysis. The results illustrate that the conventional Atmospheric Distillation configuration has a medium performance compared to other sequences. As an example, comparing the results obtained from the direct sequence, to the conventional Distillation sequence, leads in almost 30% less annual cost, 54% less exergy loss rate and 5% more exergoeconomic factor. However, the 84.87% exergoeconomic factor for the conventional configuration could justify the application of conventional sequence in the refinery.