Investigation of the process of coal oxidation during storage and determination of the permissible time of storage in the Helwan Coke Plant

الموضوعات

علوم بحتة وطبيعية

الملخص

The problem of the storing of coking coals in the open type storage at the Helwan coke plant is very important because Egypt imports coals from some countries : The USSR : the USA , Australia and so on , for coking industry , coals oxidize during shipping and storing . This decreases coking properties and coal even can be self ignited, if the rules for storage of coal will be broken. The aim of the diploma has been to study the changes in coal properties during storage in open air and to determine the permissible time of their storage. Coals imported from the USSR (coal blend) the USA coking coals and blend) whigh volatile coals from Australia and Nigeria have been investigated. changes in properties of coals ( cokability , cakability and others ) have been studied during storing in the open micro - storage ) which was arranged at the institute , and also during artificial oxidation ( flow air in a special installation ) . Data of the Helwan coke plant have been also analysed , regarding the influence of storage time on coke quality . it has been established that Permissible time for the coal storage depends on many factors rank of coal , initial degree of oxidation , size fraction of a saletc . The degree of oxidation of the coal is characterized by the content of phenolic and carboxylic hydroxyls (Do , mg , eq of KOH per 100 gram of coal ) . As a result of the investigation the formula for the calculation of permissible storing time and also the time of self ignition of different types of coal during the storage of coal at the Helwan coke plant has been proposed. But this formula is not suitable for the calculation of period of coal blend storage, the time for calculation of coal blend should be determined empirically. So it has been proved that the time for storing the Russian coal blend should not exceed 4 months (at the initial degree of oxidation is 50 - 60 mg. eq. ) .

روابط وملفات

التعريف والنوع

رقم الوثيقة

10125

رقم المصدر

122106

رمز المصدر

BK00010125-001

رقم العقد

340

نوع الوسائط

AskZad

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

ورقي

أسماء الملفات

11221060001.pdf

بيانات النشر

ترجمة العنوان

بحث لعملية اكسدة الفحم خلال التخزين وتحديد الوقت الجائز للتخزين بمصنع حلوان للفحم

ألقاب المؤلفين

[{"name_ar":"Koutcheriaev B.V.","name_en":"Koutcheriaev, B. V.","title_ar":"اشراف","title_en":"Supervision"},{"name_ar":"محمد حسن الجوهري","name_en":"Muhammad Hasan Al-Gouhari","title_ar":"مؤلف","title_en":"Author"}]

اللغة

Arabic

المصدر والدورية

اسم المصدر

Investigation of the process of coal oxidation during storage and determination of the permissible time of storage in the Helwan Coke Plant

المحتوى والصفحات

عدد الصفحات

211

رقم الجزء

0

أبعاد الوثيقة

22 × 30

التصنيف العام

متخصص

إشراف وإعداد

الإشراف

Koutcheriaev B.V.

جدول المحتويات

CHAPTER 1
 1
 CHAPTER 2
 32
 CHAPTER 3
 81
 CHAPTER 4
 131
 REFERENCE
 159

الاقتباسات الببليوغرافية