tag:blogger.com,1999:blog-44253733529866932992024-03-14T09:07:03.369+08:00chemical engineeringAll about chemical engineering, Reactor,industry, Mass Balance, Energy Balance, Utility, Water treatment Plant, Boiler, RO Plant, Softener, Economics.jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.comBlogger18125tag:blogger.com,1999:blog-4425373352986693299.post-11968279882125413502021-04-26T08:36:00.001+08:002021-04-26T08:36:00.227+08:00Types Of Steel CorrosionCorrosion is the process of eroding of the top layer of
metals as a result of an electrochemical reaction with the environment. When
metals are exposed to moisture or wetness, an orangish discolouration known as
rust forms on the surface of the metal. This causes deterioration and the
gradual destruction of the metal, if not treated effectively. The study of
prevention of corrosion and its jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-87611567738142287972021-04-22T07:31:00.006+08:002021-04-22T07:31:00.233+08:00Corrosion Engineering Corrosion is the destructive
attack of a material by reaction with its environment. The serious consequences
of the corrosion process have become a problem of worldwide significance. In
addition to our every day encounters with this form of degradation, corrosion
causes plant shutdowns, waste of valuable resources, loss or contamination of
product, reduction in efficiency, costly maintenance, andjiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-62322818629296174262021-04-20T11:15:00.003+08:002021-04-20T11:15:00.205+08:00EFFECTS OF RAINFALLThe sudden dilution of a river by
heavy rainfall can be a disruptive factor in a water treatment plant. The
location of a river water intake should be carefully chosen with this problem
in mind. In the operation of a treatment plant, it is common practice to adjust
the chemical dosages according to effluent water quality. However, there are
many water supplies so variable that it is necessary to jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-76615145615999609872021-04-19T11:15:00.000+08:002021-04-19T11:15:41.160+08:00THE WATER MOLECULEThree-quarters of the surface of
the earth is covered with water. While this is an impressive statistic, it is
pale beside the spectacular photographs that have come to us from outer space. They reveal a beautiful blue
planet bathed in water, partly hidden by a veil of vapor. Life came into being
in this water. As living things became more complex and specialized, they left
the sea or the jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-54876579776962122652019-01-21T14:27:00.006+08:002021-04-20T09:43:04.375+08:00Basics of Biodiesel Production Biodiesel is an alternative fuel for diesel engines that is gaining attention in the United States
after reaching a considerable level of success in Europe. Its primary advantages are that it is one
of the most renewable fuels currently available and it is also non-toxic and biodegradable. It can
also be used directly in most diesel engines without requiring extensive engine modifications.
The jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-61563513144713908222011-11-03T14:13:00.000+08:002011-11-03T14:13:00.186+08:00Distillation
Distillation separates two or more liquid components in a mixture using the
principle of relative volatility or boiling points. The greater the difference in relative
volatility the greater the nonlinearity and the easier it is to separate the mixture
using distillation. The process involves production of vapour by boiling the jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com7tag:blogger.com,1999:blog-4425373352986693299.post-16822948312880485862011-10-31T10:47:00.000+08:002011-10-31T10:47:58.998+08:00Batch Processes
In the 1950s, chemical engineers might have the impression that the ultimate
mission of the engineers was to transform old-fashioned batch processes into
modern continuous ones (Rippin, 1983). With such a perspective it is surprising to
find that, today, fifty years later a significant proportion of &jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com1tag:blogger.com,1999:blog-4425373352986693299.post-41641614898279468102011-10-12T08:39:00.003+08:002011-10-12T08:58:03.124+08:00BiodieselBiodiesel is a renewable fuel manufactured from vegetable oils, animal fats, and recycledcooking oils. Biodiesel offers many advantages:• It is renewable. • It is energy efficient. • It displaces petroleum derived diesel fuel.• It can be used in most diesel equipment with no or only minor modifications.• It can reduce global warming gas emissions.• It can reduce tailpipe emissions, jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com2tag:blogger.com,1999:blog-4425373352986693299.post-41814650867409547572010-07-23T16:05:00.000+08:002010-07-23T16:05:48.049+08:00Basic Laboratory SkillsAll scientific studies involve some aspect of practical work. It is therefore essential to be able to observe and to record information accurately. In the context of environmental analyses, it should be borne in mind that not all practical work is carried out in the laboratory. Indeed it could be argued that the most important aspects of the whole practical programme are done outside the jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com1tag:blogger.com,1999:blog-4425373352986693299.post-49659621387576079282010-04-28T20:02:00.001+08:002010-04-28T20:02:00.869+08:00Vacuum Condensers
Outlet Temperature and Pressure. It is important to have proper subcooling in the vent end of the unit to prevent large amounts of process vapors from going to the vacuum system along with the inerts.
Control. It is necessary to have some over-surface and to have a proper baffling to allow for pressure control during process swings, variable leakage of inerts, etc. One designer adds 50% to the jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com2tag:blogger.com,1999:blog-4425373352986693299.post-3721916954378146182010-04-24T15:17:00.000+08:002010-04-24T15:17:00.700+08:00CHEMICAL REACTION ENGINEERINGSince before recorded history, we have been using chemical processes to prepare food, ferment grain and grapes for beverages, and refine ores into utensils and weapons. Our ancestors used mostly batch processes because scaleup was not an issue when one just wanted to make products for personal consumption.
The throughput for a given equipment size is far superior in continuous reactors, but jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com1tag:blogger.com,1999:blog-4425373352986693299.post-23538741118728327272010-04-23T15:13:00.000+08:002010-04-23T15:13:49.035+08:00CHEMICAL REACTORSThe chemical reactor is the heart of any chemical process. Chemical processes turn inexpensive chemicals into valuable ones, and chemical engineers are the only people technically trained to understand and handle them. While separation units are usually the largest components of a chemical process, their purpose is to purify raw materials before they enter the chemical reactor and to purify jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com1tag:blogger.com,1999:blog-4425373352986693299.post-29837516567054333132010-04-23T00:52:00.001+08:002010-04-23T15:10:40.627+08:00Enzyme FermentationThe term "fermentation" can be used in its original strict meaning (to produce
alcohol from sugar-nothing else) or it can be used more or less broadly. We
will use the modern broad definition:
From the simplest to the most complex, biological processes may be classed as fermentations, elementary physiological processes, and the action of living entities. Further, fermentations can be divided jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-45978287259219176372010-04-15T13:13:00.011+08:002010-04-15T13:13:00.436+08:00share all about conversion unitsAll about conversion unit!!!1. Change Unit2. Conversion3. ConvertBONUS, turbine steam consumption calculator!!you can download herejiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com4tag:blogger.com,1999:blog-4425373352986693299.post-37373741639582409102010-04-13T13:39:00.000+08:002010-04-13T13:39:00.230+08:00Classification of ReactionsThere are many ways of classifying chemical reactions. In chemical reactionengineering probably the most useful scheme is the breakdown according tothe number and types of phases involved, the big division being between thehomogeneous and heterogeneous systems. A reaction is homogeneous if it takesplace in one phase alone. A reaction is heterogeneous if it requires the presenceof at least two jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com1tag:blogger.com,1999:blog-4425373352986693299.post-463788270371631322010-04-10T19:17:00.000+08:002010-04-10T12:15:00.560+08:00MASS AND ENERGY BALANCESMass Balances (Sinnott, 1985) Material balances are the basis of process design. A material balance taken over the complete process will determine the quantities of raw materials required and products produced. Balances over individual process units set the process stream flows and compositions. A good understanding of material balance calculations is essential in process design. Here the jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-71668003981222575442010-04-10T14:16:00.000+08:002010-04-10T13:47:33.055+08:00Overview of Chemical Reaction EngineeringEvery industrial chemical process is designed to produce economically a desiredproduct from a variety of starting materials through a succession of treatmentsteps. Figure 1.1 shows a typical situation. The raw materials undergo a numberof physical treatment steps to put them in the form in which they can be reactedchemically. Then they pass through the reactor. The products of the reactionmust jiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com0tag:blogger.com,1999:blog-4425373352986693299.post-38904754012932216802010-04-10T13:09:00.003+08:002010-04-10T13:12:09.991+08:00ACTIVITY COEFFICIENTS OF ACIDS, BASES, AND SALTSThis table gives mean activity coefficients at 25°C for molalities in the range 0.1 to 1.0. See the following table for definitions, references, and dataover a wider concentration range.click image for size largesource: Petr Vany´sekjiwa fana mencari pencerahanhttp://www.blogger.com/profile/08658602874448807292noreply@blogger.com2