A Bibliometric Analysis of Fifteen Years of Biogas Research Trend Between 2000-2015

Biogas is a source of renewable energy which is generated through anaerobic process. Biogas is useful in generating heat which is used for fueling, electricity and cooking mostly in the rural areas. Biogas fuels are majorly gotten from agricultural waste, human waste and others. The objective therefore is to profile the research efforts and important trends in biogas research over fifteen year period from 2000 to 2015. A bibliometric analysis of the scientific outputs in biogas research was conducted based on documents retrieved from Scopus database using biogas as the search term. Key bibliometric dimensions were explored including: the countries and institutions contributing to biogas research literature, prolific authors, and global publication distribution during the period under review. A total of 14,468 documents were retrieved from the search conducted. China has the highest number of publications in biogas research. Furthermore, English language was the most dominant language in biogas research. Chinese academy of sciences is the leading institution in biogas research in terms of output, while Angelidak, Irini emerged as the most prolific author. In addition, most research works were published Article with 70.6% regarding several research subject areas, energy research trends upward globally. Also, English speaking researchers exceeds others.