The vapor compression distillation vcd flight experiment, managed by nasas marshall space flight center in huntsville, ala. In the vc process, the vapor produced by evaporating the water is compressed to increase the saturation pressure and temperature. Some of the compressed and heated vapour is then recycled through a series of tubes passing through. The low pr plant is designed with a maximum brine temperature of about requiring on ly a polyelectrolyte scale inhibitor.
The design problem concerns the replacement of r4a refrigerant. Meco is the leading manufacturer of vapor compression distillation systems for the. This book is great to refer to when designing a distillation column in a. The first five books every chemical engineer should get right out. This investigates a highefficiency mechanical vaporcompression distillation system that employs an improved water flow arrangement.
Which compressed air system design is right for you. The methods specifically in question are multipleeffect distillation and vapor compression distillation. Vapor compression distillation pharma vapor compressions stills. In 1939, meco patented the vapor compression process for the desalination of saltwater. This book is a worthy sequel to the authors previous excellent book distillation operation. A refrigerant design problem for a vapor compression refrigeration cycle was presented previously gani et al. Vaporcompression evaporation is the evaporation method by which a blower, compressor or jet ejector is used to compress, and thus, increase the pressure of the vapor produced. In terms of distillation, vapor compression, or vc, refers to mechanical vapor. Iss water recovery system, vapor compression distillation. Just go to the compression tab in the gpsa and it has an explanation. This compressed vapor is then condensed to produce wfi by. In the vapourcompression system, heat is provided by the compression of vapour rather than by direct heat input from a boiler.
Distillation design and control using aspen simulation introduces the current status and future implications of this vital technology from the dual perspectives of steadystate design and dynamics. It is a very impressive work covering almost all aspects of process. When the vapour is rapidly compressed, its temperature rises. Vapor compression distillation vc is a process used to produce water for injection wfi on the principle of distillation, where the water is distilled with phase change and entrainment separation. Design of distillation column control systems 1st edition elsevier. Senatore ebasco services incorporated, 2 sector st. Refinery this section is for refinery, oil refining,refining and distillation books, here you can find many books about trays and packed columns. Pdf distillation design mechanical engineering download. Design considerations for wfi distillation systems part 1 ispe.
Download biopharmaceutical vapor compression ebook. Most available books in chemical engineering mainly pertain to continuous processes, with batch distillation relegated to a small section. It addresses the most important and current research on. Nasa vapor compression distillation vcd flight experiment. Mechanical vapor compression distillation of saline water is a process in which mechanical energy is used as the main driving force. Since the pressure increase of the vapor also generates an increase in the condensation temperature, the same vapor can serve as the heating medium for its mother liquid or solution being concentrated, from which the. Holtzapple the ability to produce potable water economically is the primary purpose of seawater desalination research. Vapor compression distillation numbers reference the points in the diagrams above and below 1. Vaporcompression evaporation is the evaporation method by which a blower, compressor or. Purchase design of distillation column control systems 1st edition. Vapor compression distillation pharma vapor compressions. More precisely, vcd systems allow to obtain water for i. Unlike other purification processes that require multiple steps chemical treatment, filtration, reverse osmosis, forward osmosis, mbr, ultraviolet each used to target and. Greater efficiency of the vapor compression system is achieved by connecting multiple evaporators in series, rather than the traditional parallel arrangement.
Introduction the vapor compression distillation process can be designed as a low capital cost and corresponding low performance ratio about 7 ibs product per kbtu or as a higher capital cost and higher pr about 31 plant. It is basically a heat pump process that pumps heat from a lowtemperature reservoir to a higher temperature reservoir, just as in household refrigerators where the heat is pumped from the air inside the refrigerator box to the ambient air outside of the box. Aquabacks thin film vapor compression distillation technology utilizes over 50 years of combined water purification and heat transfer technology knowledge to deliver the next generation of water purification solutions. A vapor compression cycle is utilized to distill product water. Desalination, 311979 544 elsevier scientific publishing company, amsterdam printed in the netherlands vapor compression distillation samuel j. In this paper, the case study was extended to include an expanded search space, inclusion of utility streams and practical design criteria. Vaporcompression evaporation news newspapers books scholar. Since then, weve refined and improved the technology to deliver highquality potable drinking water and distilled water in some of the worlds harshest environments. Meco vapor compression stills feature the gii centurbo compressor for pharmaceutical. Where traditional design texts have focused mainly on the steadystate economic aspects of distillation design, william luyben also addresses such.
Other articles where vapour compression distillation is discussed. Incoming water influent enters the system and runs through two heat exchangers which transfer heat to the influent from the outgoing pure water distillate and grey water concentrate. Pharmaceutical vapor compression distillation vcd, improperly known as thermocompression or such as mechanical vapor recompression mvr or mechanical vapor compression mvc distillation, too, is the main way to produce wfi water for injection and grade waters for pharmaceutical use. This report explains what to consider when designing a. Design and operation series on chemical engineering.
667 1116 847 1509 1538 640 221 882 25 559 760 1093 902 1338 602 855 600 1284 183 1522 1490 132 527 869 1187 316 1154 259 1006 925 1149 383 1484 743 210 1296 339 336 1256 1225 933 128 1411 982 458