Treatment of Oilfield Sewage by Thermal Distillation Technology

2014 ◽  
Vol 955-959 ◽  
pp. 2911-2914
Author(s):  
Jia Bin Zhu ◽  
Shu Zhong Wang ◽  
Jian Ping Yang
Keyword(s):  
Waste Heat ◽  
Water Shortage ◽  
Extraction Process ◽  
Low Grade ◽  
Water Recovery ◽  
Vapor Compression ◽  
Steam Assisted Gravity Drainage ◽  
Multi Stage ◽  
Liaohe Oilfield ◽  
Flash Distillation

A large amount of waste heat is generated in the oil extraction process when using steam assisted gravity drainage (SAGD) technology. Thermal distillation technology is recommended to deal with the Liaohe Oilfield sewage. It not only can utilize the low-grade energy source, but also can recover the water to settle the water shortage problem. The principles and processes of multi-stage flash distillation (MSF), multi-effect distillation (MED) and vapor compression (VC) are introduced, and the tech-economic analysis is also made. It is found that it has significant advantage in heat and water recovery using the MED technology to deal with the Liaohe Oilfield sewage.

Integrated Wastewater Recovery and Reuse via Waste Heat Utilization

2013 ◽  
Author(s):  
Yaroslav Chudnovsky ◽  
Aleksandr Kozlov
Keyword(s):  
Energy Efficiency ◽  
Reverse Osmosis ◽  
Waste Heat ◽  
Wastewater Reuse ◽  
Electricity Consumption ◽  
Recovery Process ◽  
Vapor Compression ◽  
Membrane Processes ◽  
Multi Stage ◽  
Flash Distillation

A variety of industrial wastewater recovery technologies for different areas and applications has been developed over the years, including primarily thermal and membrane processes. The main thermal processes include atmospheric distillation, distillation with mechanical vapor compression, vacuum distillation, multi-stage flash distillation, multi-effect distillation with thermal vapor compression, etc. [1,2]. The membrane processes contain reverse osmosis, electrodialysis, and nanofiltration. The multi-stage flash distillation and reverse osmosis processes dominate in most applications. Wastewater recovery and re-use technologies have been expanding rapidly in recent decades. The market is also driven by the falling costs of wastewater recovery, which are due to the technological advances in the process. The costs of clean water produced by wastewater recovery process dropped considerably over the years as a result of reductions in price of equipment, reductions in power consumption and advances in system design and operating experiences. In this work state-of-the art and innovative wastewater recovery/re-use technologies are estimated and compared in their features and cost respects. The new technology is discussed that allows increasing in energy efficiency of the wastewater recycling and reduce electricity consumption associated with conventional methods. Successful development and implementation of the technology for food processing applications will provide large energy and water savings to the industry. These savings are tied to an energy efficiency increase and reduction in pumping power for process water supply. The ability to integrate waste heat recovery with wastewater reuse also leads to product cost reduction opportunities for producers.

Performance Evaluation of Multi-Stage Shell and Tube Transport Membrane Condenser Heat Exchangers for Low Grade Waste Heat and Water Recovery

2017 ◽  
Author(s):  
Soheil Soleimanikutanaei ◽  
Cheng-Xian Lin ◽  
Dexin Wang
Keyword(s):  
Water Vapor ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
Power Plants ◽  
Ceramic Membrane ◽  
Waste Heat ◽  
Low Grade ◽  
Water Recovery ◽  
Multi Stage ◽  
Shell And Tube

In this work for the first time the performance of multi-stage shell and tube Transport Membrane Condenser (TMC) based heat exchangers are evaluated numerically. The present heat exchanger is design to work under high pressure and temperature condition for both heat and water recovery in Oxy-Combustion processes. TMC heat exchangers use the nano-porous and ceramic membrane technology to extract the water vapor and latent heat of condensation from the flue-gas. The most important application of TMC heat exchangers is in the power plants which the water vapor in the presence of other non-condensable gases (i.e. CO2, O2 and N2) exist. Effect of the different arrangement of the multi-stage shell and tube TMC heat exchangers, number of branches and number of heat exchangers in each branch on the heat transfer and water recovery have been studied numerically. A single phase multi-component model is used to assess the capability of single stage TMC heat exchangers in terms of waste heat and water recovery at various inlet conditions. Numerical simulation has been performed using ANSYS-FLUENT software and the condensation rate model has been implemented applying User Define Function. Finally, an optimum configuration for the TMC heat exchanger unit has been proposed and the results of numerical simulations are depicted in terms of temperature and water vapor mass fraction contours.

Numerical Study of Transport Membrane Condenser Heat Exchangers

2016 ◽  
Author(s):  
Esmaiil Ghasemisahebi ◽  
Soheil Soleimanikutanaei ◽  
Cheng-Xian Lin ◽  
Dexin Wang
Keyword(s):  
Flue Gas ◽  
Heat Exchangers ◽  
Ceramic Membrane ◽  
Waste Heat ◽  
Numerical Study ◽  
Tube Bundle ◽  
Pure Water ◽  
Separation Mechanism ◽  
Low Grade ◽  
Water Recovery

In this study tube bundle Transport Membrane Condenser (TMC) has been studied numerically. The tube walls of TMC based heat exchangers are made of a nano-porous material and has a high membrane selectivity which is able to extract condensate pure water from the flue gas in the presence of other non-condensable gases (i.e. CO2, O2 and N2). Low grade waste heat and water recovery using ceramic membrane, based on separation mechanism, is a promising technology which helps to increase the efficiency of boilers and gas or coal combustors. The effects of inclination angles of tube bundle, different flue gas velocities, and the mass flow rate of water and gas flue have been studied numerically on heat transfer, pressure drop and condensation rates. To assess the capability of single stage TMC heat exchangers in terms of waste heat and water recovery at various inlet conditions, a single phase multi-component model is used. ANSYS-FLUENT is used to simulate the heat and mass transfer inside TMC heat exchangers. The condensation model and related source/sink terms are implemented in the computational setups using appropriate User Defined Functions (UDFs).

Numerical Simulation of Low Grade Heat and Water Recovery Using Nanoporous Transport Membrane Condensers Bundle Tubes

2015 ◽  
Author(s):  
Soheil Soleimanikutanaei ◽  
Cheng-Xian Lin ◽  
Dexin Wang
Keyword(s):  
Heat Exchanger ◽  
Flue Gas ◽  
Power Plants ◽  
Ceramic Membrane ◽  
Transport Model ◽  
Waste Heat ◽  
Numerical Study ◽  
Tube Bundle ◽  
Low Grade ◽  
Water Recovery

Low grade waste heat and water recovery using ceramic membrane, is an emerging technology which helps to increase the efficiency of boilers and gas or coal combustors in various industrial processes and conventional power plants. The tube wall of a Transport Membrane Condenser (TMC) based heat exchanger is made of a nano-porous material with high membrane selectivity which is able to extract condensate water from the flue gas in the presence of other non-condensable gases (i.e. CO2, O2 and N2). In this work, a numerical study has been carried out to investigate the effects of transversal pitches of the TMC bundle tubes on the performance of a TMC based cross flow heat exchanger. A simplified multi-species transport model is used to investigate the heat and mass transfer characteristics of a condensing combustion flue gas in a crossflow transport membrane tube bundle. Various transversal (0.4”–0.6”) and longitudinal (0.4”–0.8”) pitches were used. The numerical results revealed that the effect of transversal pitches on the outlet parameters are more pronounced.

Modelling of Shell and Tube Transport Membrane Condenser Heat Exchangers in Low Grade Waste Heat and Water Recovery Applications

2016 ◽  
Author(s):  
Soheil Soleimanikutanaei ◽  
Esmaiil Ghasemisahebi ◽  
Cheng-Xian Lin ◽  
Dexin Wang
Keyword(s):  
Flue Gas ◽  
Heat Exchangers ◽  
Waste Heat ◽  
Pure Water ◽  
Separation Mechanism ◽  
Low Grade ◽  
Water Recovery ◽  
Condensation Rate ◽  
Tube Heat Exchanger ◽  
Shell And Tube

In this study Transport Membrane Condenser (TMC), a new waste heat and water recovery technology based on a nanoporous ceramic membrane vapor separation mechanism has been studied for waste heat and water recovery in power plant application. TMC is able to extract condensate pure water from the flue gas in the presence of other non-condensable gases (i.e. CO2, O2 and N2). The effects of mass flow rate of flue gas and water vapor content of flow on the heat transfer and condensation rate of a TMC shell and tube heat exchanger have been studied numerically. A single phase multi-component model is used to assess the capability of single stage TMC heat exchangers in terms of waste heat and water recovery at various inlet conditions. Numerical simulation has been performed using ANSYS-FLUENT software and the condensation rate model has been implemented applying User Define Function.

scholarly journals Modeling, Simulation, and Optimization of a Solar-Based System of Desalination Using Humidification and Dehumidification

2020 ◽  
Vol 10 (10) ◽  
pp. 3361
Author(s):  
Khalifa Zhani ◽  
Khaled Ali Abuhasel
Keyword(s):  
Vapor Compression ◽  
Climate Conditions ◽  
Simulation And Optimization ◽  
Modeling Simulation ◽  
Solar Desalination ◽  
Multi Stage ◽  
Effective System ◽  
Flash Distillation ◽  
Simulation Results ◽  
Multiple Effect Distillation

Solar desalination systems are characterized by low freshwater production compared with the usual techniques of mineral and salt removal from water. The usual methods include, but are not limited to, multi-stage flash distillation, multiple-effect distillation, vapor-compression desalination, and reverse osmosis. Solar desalination requires various modifications to make it more productive than the usual methods. The method is suitable for energy and environmental protection, making it the most effective system. The adjustments involve using the humidification and dehumidification principle (HD). The three configurations of the HD solar desalination system in this project are designed to accommodate variations in climate conditions and seasonal changes. Mathematical models are designed to test the workability of the system in an ideal environment. The models are based on universal fluid equations that regulate the functioning of each component of the system. After the model is designed, a regulation algorithm is designed based on the model. The simulation results show that the gain in freshwater production using a regulation algorithm is in the order of 33%.

REVIEW ON EJECTOR OF VAPOR JET REFRIGERATION SYSTEM

2014 ◽  
Vol 22 (03) ◽  
pp. 1430003 ◽  
Author(s):  
PARVEEN BANU JIAUTHEEN ◽  
MANI ANNAMALAI
Keyword(s):  
Performance Improvement ◽  
Fossil Fuels ◽  
Performance Enhancement ◽  
Waste Heat ◽  
Experimental Studies ◽  
Low Grade ◽  
Vapor Compression ◽  
Refrigeration System ◽  
Two Phase ◽  
Developmental Progress

Vapor Jet Refrigeration (VJR) system is attractive among various heat operated refrigeration systems, because it has the potential of utilizing low grade thermal energy with source temperature as low as 60°C, which could be harnessed from renewable energy, waste heat, automobile-exhaust, etc. Also absence of moving parts in this system resulted in lesser maintenance costs. In addition to that this system causes very low environmental pollution due to almost negligible consumption of high grade energy from fossil fuels for running a small liquid pump of the system. Although VJR was invented very long back, still performance improvement to compete with vapor compression refrigeration system is in progress. Plenty of research has been carried out in different aspects for enhancing the efficiency of this technology. The present work/paper gives an overview of VJR system and its progression in the aspect of performance improvement. The developmental progress of the VJR technology presented in this paper has been categorized into the following groups, namely (a) general performance of an ejector, (b) numerical analysis, viz., classical one-dimensional analysis and Computational Fluid Dynamics (CFD) analysis, (c) experimental studies, (d) flow visualization studies, (e) performance enhancement techniques, and (f) two-phase ejector. And also presented a glimpse of some of the review papers from literature on VJR system.

A New Targeting Method for Combined Heat, Power and Desalinated Water Production in Total Site

2012 ◽  
Author(s):  
Mohammad Hasan Khoshgoftar Manesh ◽  
Hooman Ghalami ◽  
Sajad Khamis Abadi ◽  
Majid Amidpour ◽  
Mohammad Hosein Hamedi
Keyword(s):  
Heat Source ◽  
Waste Heat ◽  
Carbon Dioxide Emission ◽  
Cooling Water ◽  
Low Grade ◽  
Multi Stage ◽  
Utility Systems ◽  
Utility System ◽  
Multiple Effect Distillation ◽  
Low Grade Heat

Low-grade heat is available in large amounts across process industry from temperatures of 30 °C to 250 °C as gases (e.g. flue gas) and/or liquids (e.g. cooling water). Various technologies are available for generating, distributing, utilizing and disposing of low grade energy. Also, conventional desalination technologies are energy intensive and if the required energy hails from fossil fuel source, then the freshwater production will contribute to carbon dioxide emission and consequently global warming. In this regard, low grade heat source can be very useful to provide energy to the heat sink by upgrading low-grade energy (e.g. low pressure steam). The upgrade of low grade heat can be carried out by desalination technologies by recovering waste heat from various sources. The steam network of site utility system has a suitable potential for production of low grade heat. Estimation of cogeneration potential prior to the design of the central utility system for site utility systems, is vital to set targets on site fuel demand as well as heat and power production. So, a new cogeneration targeting model has been developed for integration of steam desalination systems and site utility of process plant. The new procedure to find optimal integration has been proposed based on new cogeneration targeting. In this paper, evaluation of coupling different desalination systems which includes multi-stage flash (MSF), multiple effect distillation (MED), membrane reverse osmosis (RO), and hybrid (MSF/MED-RO) to steam network of site utility system with have been considered. The integration of desalination systems to a low grade heat source has been performed using proposed cogeneration targeting method. In addition, a modified Site Utility Grand Composite Curve (SUGCC) diagram is proposed and compared to the original SUGCC. A steam network of process utility system has been considered as a case study.

Sign in / Sign up

Export Citation Format

Share Document