What is Hydrogen ?

A Detailed Look at Hydrogen.

When most people hear the word "hydrogen" they have flashing images of an exploding blimp. Hydrogen is a fuel that requires energy to retrieve it. In other words, you have to extract hydrogen from another substance....that's the bad news. The good news is that many chemicals (including water) contain hydrogen.


Just the Facts Energy Content: 1 kg of hydrogen

Equivalent Lengths of Valves and Fittings in Pipeline Pressure Drop Calculations

One of the most basic calculations performed by any process engineer, whether in design or in the plant, is line sizing and pipeline pressure loss. Typically known are the flow rate, temperature and corresponding viscosity and specific gravity of the fluid that will flow through the pipe. These properties are entered into a computer program or spreadsheet along with some pipe physical data (

Competency in Process Control

This is a summary of a general set of recommendations aimed at helping pulp and paper mills manage process and product variability. It suggests a minimum set of standards for human awareness, knowledge and skills in the various aspects of the process control engineering discipline that is needed at each stage of a pulp and paper mill design, start-up and on-going operation/optimization.

1.0

Study of Regenerable Sorbents for CO2 Capture

Introduction

Carbon dioxide (CO2) is a greenhouse gas that is customarily released to the environment during the usage of fossil fuels, including electric power generation. With the projected increase in consumption and demand for fossil fuels, CO2 emissions will correspondingly increase in the absence of any capture/sequestration strategy. In view that CO2 is a greenhouse gas with the potential

Safeguarding : Boiler and Heater

Sistem alarm dan safeguarding merupakan suatu instrumentasi pelindung bagi personel dan peralatan bila terjadi kegagalan operasi. Fungsinya lebih lanjut dijabarkan dalam uraian berikut :
1.Bila terjadi suatu kondisi yang khas segera menjadi perhatian operator. Kondisi tersebut misalnya tidak berfungsinya suatu peralatan, kekeliruan operasi, dan kondisi lainnya yang menimbulkan resiko bahaya.
2.

Boiler : Operating Parameter

Parameter Pengoperasian Boiler Yang Diukur & Dikendalikan

Pada fire tube boiler dan kebanyakan water tube boiler terutama unit yang dirakit di pabrik dengan pengapian fuel oil atau fuel gas yang hanya dioperasikan dengan forced draught fan, tekanan furnace selalu positif, sekitar 10 mbar, bergantung pada tekanan balik, positif atau negatif , sistem buangan dan perlengkapan heat recovery yang

Recovery of CO2 from Flue Gases: Commercial Trends

1.0 ABSTRACT
Interest in recovery of carbon dioxide (CO2) from flue gases is being propelled by multiple factors: the merchant CO2 market, renewed interest in enhanced oil recovery (EOR), and the desire to reduce greenhouse gas emissions. This paper reviews the latest operating and capital cost data for the Fluor Daniel Econamine FGSM process. It also recaps the key process design and operating

Understanding Gas Treating Fundamentals Part 01

The challenges of the new clean fuels regulations, refiners were particularly interested in ways to improve capacity, efficiency and reliability of amine systems and sulphur units. Much of the focus on improving the operation of the amine unit, and the associated affects on the downstream sulphur plant, has been in the area of amine solvent conversion. Some of these solvent conversions have

Catalyst Reduction In LTSC

Proses Reduksi Katalis LTSC ( Low Temperature Shift Converter)

As received the LTSC Catalyst are in an oxidized state and must be reduced prior to being placed in service. The method and conditions ofreduction of the catalyst are most essential to the ultimate performance ofthe catalyst and must be carefully controlled.

The catalyst is reduced passing a carrier gas such as nitrogen, natural gas

Catalyst Sulfiding In Hydrocracking Process

Proses konversi primer untuk memproduksi high quality middle distillate adalah proses hydrocracking. Proses yang ekonomis dan menguntungkan adalah maximize jumlah feed/umpan sesuai kapasitas dan menjaga unit pada service factor yang tinggi. Untuk mencapai produksi yang optimum maka hal-hal yang perlu diperhatikan antara lain : pemilihan jenis katalis , tipe feedstock/umpan , feedrate , dan

Energy Conservation In Distillation

The preferred method of separation in the chemical industry, distillation, is a very energy intensive process. Fine tuning your distillation columns (and in some cases, making major changes) can save your company thousands of dollars a year or more


Consider the following distillation column:
Table 1: Column Design Specifications Feed Temperature (0C) 90.0

Blog Buat Process Engineer ( Teknik Kimia)

Halo para sobat semua,

Blog ini sengaja saya buat untuk saling sharing informasi bagi sesama Process Engineer dan para Teknik Kimia. Artikel-artikel yang dibuat ada yang asli buatan sendiri dan ada yang mengcopy dari website lain.

Bagi yang ingin berbagi informasi dan tanya jawab seputar Process Engineering dipersilahkan.

Regards,
Budi TJ
Process Engineers and System Engineer

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Pria

Centrifugal Pumps - Part 02

Centrifugal Pumps: Basic Concepts of Operation, Maintenance, and Troubleshooting

In Part I of the article, two basic requirements for trouble free operation and longer service life of centrifugal pumps are mentioned in brief.


1.PREVENT CAVITATION
Cavitation of the pump should not occur throughout its operating capacity range.

2.MINIMIZE LOW FLOW OPERATION
Continuous operation of centrifugal

Distillation Columns - Thinking Quickly

When your basic column controls fail, a quick thinking engineer can save a company alot of money. Weighing the financial options before the incident happens can help you feel secure in you decisions when you make them. We'll have a look at three scenarios that you may not have thought of, but may encounter.
Let's start with a basic, optimized column design as described in Table 1:

Table 1:

Centrifugal Pumps - Part 01

Introduction

The operating manual of any centrifugal pump often starts with a general statement, “Your centrifugal pump will give you completely trouble free and satisfactory service only on the condition that it is installed and operated with due care and is properly maintained.”

Despite all the care in operation and maintenance, engineers often face the statement “the pump has failed i.e

Writing e-Book

This article will concentrate on adding some structure to your eBook idea. We will be creating the GRAND PLAN that will define your ebook and make the writing process easier…a roadmap leading to your success. Exciting!!

Here we go!
Take a moment to recognize what images you have in your mind when you think of having your ebook completed. Can you see a picture of the finished product, like on all

Hydrocracking Process - Part 01

Hydrocracking merupakan suatu proses yang mengkonversi umpan menjadi produk yang lebih ringan dengan bantuan katalis dan gas hidrogen. Selain itu hydrocracking dapat didefinisikan sebagai proses produksi fraksi-fraksi ringan berkualitas tinggi dari minyak berat dengan bantuan hidrogen.
Proses hydrocracking (unicracking) memiliki aplikasi yang cukup luas antara lain untuk konversi :
- Naphtha

Prinsip Pengukuran dan Pengendalian

1.1. Pengertian Pengukuran dan Pengendalian

Pengukuran disini menggunakan alat instrumentasi yaitu alat yang berfungsi untuk mengukur parameter/variabel operasi suatu peralatan sebagai input untuk sistem pengendalian dan/atau sebagai informasi untuk operator. Sebagai contoh parameter operasi boiler dan heater yang diukur adalah temperatur, tekanan, laju alir dan ketinggian air (pada boiler).

Engineering Knowledge

The topic chosen belongs to the area of research methods.
Leady (1980) defines 'research' as "the manner in which we solve knotty problems in our attempt to push back the frontiers of human ignorance."
Two aspects appears to be stressed : the emergence of knowledge (as opposed to ignorance) and the endeavour towards the solution of problems.
On the basis of this and other scientists' definition

Fundamental Of Amine Sweetening

Teknologi gas sweetening dengan menggunakan alkanolamine atau amine untuk menghilangkan hidrogen sulfida (H2S) dan karbon dioksida (CO2) dari gas alam (natural gas)/gas hasil kilang (off gas) sudah lama diaplikasikan. Pertama kali larutan amine yang digunakan adalah Triethanolamine (TEA) yang ditemukan (dipatentkan) oleh R.R. Bottoms pada tahun 1930 dan menjadi larutan alkanolamine yang pertama

Introduction to Process Control

Proses adalah sebuah kegiatan berkesinambungan yang mengubah suatu material. Istilah proses di industrial mencakup input (raw material/feed/bahan baku) dan output (product). Kontrol untuk menjaga kondisi (operasi kilang) sesuai yang diinginkan dalam sistem dengan mengatur variabel yang dipilih di sistem tersebut. Proses Kontrol : menjaga kondisi yang diinginkan dalam sistem dengan mengatur

Methanator : K2CO3 Carry Over

Methanator is a reactor to convert CO /CO2 with H2 and producing Methane + Water. Usually used at Hydrogen Plant and Fertilizer Plant.
Process Gas which leaves from LTSC is practically free of any poison as these have been absorbed by upstream catalysts. The methanation catalyst is therefore well protected against most poisons which normally deactivate nickel-based catalyst, such as sulphur.

Lowongan Pekerjaan di Dep. Dalam Negeri

Sumber : Lowongan Kerja Depdagri

Penerimaan CPNC Depdagri untuk Tahun 2007,
Lamaran paling lambat tgl 27 September,
Test dilaksanakan tgl 27 Oktober 2007


Smoga bermanfaat.

About Chemical Eng

Chemical engineering is the branch of engineering that deals with the application of physical science (e.g. chemistry and physics), with mathematics, to the process of converting raw materials or chemicals into more useful or valuable forms. As well as producing useful materials, chemical engineering is also concerned with pioneering valuable new materials and techniques; an important form of

Tentang Teknik Kimia

Teknik kimia (Inggris: chemical engineering) adalah ilmu teknik atau rekayasa yang mempelajari pemrosesan bahan mentah menjadi barang yang lebih berguna, dapat berupa barang jadi ataupun barang setengah jadi. Ilmu teknik kimia diaplikasikan terutama dalam perancangan dan pemeliharaan proses-proses kimia, baik dalam skala kecil maupun dalam skala besar seperti pabrik. Insinyur teknik kimia yang