demetallization meaning in English

除去金属镀层
脱金属作用

Development and application of atmospheric residue hydrogenation guard catalyst and demetallization catalyst
常压渣油加氢保护剂和脱金属催化剂的开发及应用
The hydro - demetallization kinetic model and the expression of catalyst deactivation function were proposed on the base of appropriate hypothesis used in common kinetic research methods and the operation data from maoming ' s residue hydrodesulfurization treatment unit ( s - rht )
摘要依据茂名渣油加氢工业装置( s - rht )的大量实测数据，通过合理的模型假定，采用常规的动力学模型研究方法，建立了渣油加氢脱金属动力学模型和催化剂失活函数表达式。