تفسیر دعوۃ القرآن کے امتیازات و خصائص

Quran is the word of Allah Almighty, therefore, in order to understand it in the true sense, a person has to sharpen his or her intellectual ability as well as increase the knowledge. When one is at a particular intellectual level, only then can he or she start understanding the true message, which Allah Almighty conveyed through words of Quran. Pertaining to the explanation of Quran for the understanding of general audience, different people have tried to write the Tafseer of Quran. Although Muslims recite Quran and try reading it with translation, however, the reading of Tafseer has its own importance. “Tafseer Dawat-Ul-Quran” is written by Abu Nauman Saifullah Khalid and published from Dar-Ul_Undalus Lahore in 2010. This Tafseer has been written in the light of the Quran, Hadith, and the sayings of the companions of Prophet. In this Tafseer correct tradit-ions has been included and unauthentic traditions has been avoided. In  theological  interpretations,   the  words  of  Qur'an are  explained  in  the context of the Qur'an itself or the sayings of The  Holy Prophet(ﷺ). This type of interpretation is called “Tafseer Bilmasur”.“Tafseer Dawat-Ul-Quran”is representative of Tafseer Bilmasur. In this research article, the Salient features of “Tafseer Dawat-Ul-Quran” are discussed.

Production of Biodiesel Using Heterogeneous Catalyst and Super Critical Fluid Extraction

Biodiesel is the only possible reciprocal to petro diesel and a boon to the fast depleting fossil fuel resources. Biofuel is produced from different feedstock including Algae, seeds of some terrestrial plants like Jatropha curcas, pongamia, castor, palm and oily wastes. The thesis addresses the multi-dimensional areas associated with the biodiesel production processes, covering the entire scope from seed based to non-terrestrial microalgae feedstock cultivation, extraction and its efficient conversion into liquid fuels. Design and development of efficient screw press expeller for oil expression from jatropha curcas seeds was the first investigation. This study is aimed to make efficient screw expeller to cater massive Jatropha biomass and its oil extraction. Experimental validation of the simulation is used to improve oil expeller for Jatropha seed by fabricating the expeller following the design and analysis by ANSYS FLUENT codes. An oil yield in excess of 98%, as compared to a maximum 75% for existing screw expellers, was achieved in practical runs which is very promising. An innovative airlift tubular photobioreactor was developed for growing algae in simulated conditions. Algal strain Chlorella sp was inoculated in photobioreactor which was sparged with air and carbon dioxide. The novel photobioreactor recorded a maximum experimental average yield of 0.65 g/L.day (13.3 g/m2.day) as compared to theoretical modeled yield of 0.82 g/L.day (14.26 g/m2.day), suggesting the device can be efficiently and cost-effectively employed in the production of algal biomass for biofuels. Supercritical Carbon dioxide (SC-CO2) fluid extraction (SCFE) was carried out to extract oil from Jatropha Curcas L. and microalgae (Chlorella Vulgaris) for biofuel production. The extraction was performed at temperature ranges of 40-80 oC and pressure of 4000-9000 psi in-order to investigate the optimum process parameters for Jatropha Curcas and microalgae biomass. The optimum yield for Jatropha was found to be 30.6 wt% and for microalgae it was 17.7 wt% (based on total oil contents present in the biomass) which was in close agreement with the time consuming traditional n-hexane based solvent extraction. The algal oil was then transesterified into biodiesel using nano-photo heterogeneous catalyst. The biodiesel produced using photosensitive catalyst was then characterized by using analytical techniques like GCMS and NMR and results are discussed. The physical properties of biodiesel are also analyzed according to ASTM standards.