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Article
Effect of Biomass Gasification on Environment

Author: Amit Kumar Mishra
Journal: Mesopotamia Environmental Journal بيئة وادي الرافدين ISSN: 24102598 Year: 2015 Volume: 1 Issue: 4 Pages: 39-49
Publisher: Babylon University جامعة بابل

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Abstract

Biomass gasification is a proficient technology able to convert any kind of biomass into valuable products and can contribute extensively to renewable energy generation. Gasification is a form of thermal breakdown of biomass feed stocks, carried out at high temperature result in a gas known as producer gas which can be used for numerous purposes.Apart from all the advantages this technologies have some drawback related to process and products which results environmental pollutions, occupational health and safety hazards. The producer gas is needs to be cool before use depending upon the application and some byproducts are also released such as tar, ash, char, oils etc., which create specific problem in the environment require suitable treatment before discharged. The present study gives a review of health, safety and environmental issues with process and products of biomass gasification plant.


Article
Mathematical Modeling of Biomass (Wood) Gasification

Author: Husham.M.Al.Tameemi
Journal: Journal of University of Babylon مجلة جامعة بابل ISSN: 19920652 23128135 Year: 2017 Volume: 25 Issue: 1 Pages: 285-297
Publisher: Babylon University جامعة بابل

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Abstract

The paper aims to work theoretical study by using three reactions for the wood burning analysis or (Wood Gasification). First, we suggested a general equation with molar balance modified for the burning. Results obtained, we solved multivariable nonlinear equations non-linear equations by means of Newton-Raphson method. Using the computer program Matlab, we calculated the degree of equilibriums heat for the reac285tions absolute (946 ok, 763 ok, and 67 ok). Also, we calculate thermodynamics functions for the reactions (ΔG, ΔH, K) with two ΔH+ (non- impulsive) and one ΔH-(impulsive).

يهدف البحث الى اجراء دراسة نظرية باستخدام تفاعلات ثلاثة لتحليل احتراق الوقود الحيوي( الخشب) او ( تغويز الخشب), اولا تم اقتراح معادلة عامة للاحتراق و تم اجراء موازنة عادية ( موازنة مولية) للاحتراق. النتائج المستحصلة هو الحصول على اربعة معادلات رياضية تضم سبعة مجاهيل, بعدها تم احتساب عدد المولات باستخدام برنامج الماتلاب, حيث تم احتساب درجة حرارة الاتزان لكل تفاعل من التفاعلات الثلاثة باستخدام طريقة نيوتن – رافسون و كانت درجة حرارة الاتزان للتفاعلات الثلاثة التي حصلنا عليها (946 مطلقة , 763 مطلقة و 67 مطلقة ). ايضا تم احتساب الدوال الثرموديناميكية ( k , HΔ , GΔ) للتفاعلات الثلاثة حيث بينت النتائج ان التفاعل الاول و الثاني غير تلقائي و التفاعل الثالث تلقائي حيث كانت HΔ سالب.

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