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2. CatalystNaphtha reforming cataly
2. Catalyst
Naphtha reforming catalyst is a bifunctional catalyst consists of
a metal function, mainly platinum, and an acid function, usually
chloride alumina. The metal function catalyzes the hydrogenation the isomerization and cyclization reactions [11–13]. In order to
achieve an optimum performance of the naphtha reforming catalyst,
adequate balance between these functions is needed [14].
Improving the stability and selectivity of the catalyst as well as
reducing catalyst deactivation is a vital issue for enhancing the efficiency
and yield of the process. This practice could be achieved by
modification of both acid and metal function.
Addition of components to the acid function, such as chloride,
changes the strength and amount of support acid sites. Higher acid
strengths increase the acid-catalyzed coking and cracking rates
[15]. Although an excessive amount of chlorine would increase
the hydrocracking reactions, carbon deposits would also increase
[14].
Modification of metal function could be achieved by adding secondary
or ternary metal component to Pt, which is summarized
here.
Naphtha reforming catalyst is a bifunctional catalyst consists of
a metal function, mainly platinum, and an acid function, usually
chloride alumina. The metal function catalyzes the hydrogenation the isomerization and cyclization reactions [11–13]. In order to
achieve an optimum performance of the naphtha reforming catalyst,
adequate balance between these functions is needed [14].
Improving the stability and selectivity of the catalyst as well as
reducing catalyst deactivation is a vital issue for enhancing the efficiency
and yield of the process. This practice could be achieved by
modification of both acid and metal function.
Addition of components to the acid function, such as chloride,
changes the strength and amount of support acid sites. Higher acid
strengths increase the acid-catalyzed coking and cracking rates
[15]. Although an excessive amount of chlorine would increase
the hydrocracking reactions, carbon deposits would also increase
[14].
Modification of metal function could be achieved by adding secondary
or ternary metal component to Pt, which is summarized
here.
0/5000
2. chất xúc tácChất xúc tác cải cách naphtha là một chất xúc tác bifunctional bao gồmmột chức năng kim loại, chủ yếu là bạch kim, và một chức năng axit, thườngclorua nhôm. Chức năng kim loại catalyzes hydro hóa phản ứng đồng và cyclization [11-13]. Đểđạt được một hiệu suất tối ưu của chất xúc tác cải cách naphtha,sự cân bằng thích hợp giữa các chức năng này là cần thiết [14].Cải thiện sự ổn định và chọn lọc của chất xúc tác cũng nhưgiảm vô hiệu hóa chất xúc tác là một vấn đề quan trọng để nâng cao hiệu quảvà năng suất của quá trình. Điều này thực tế có thể đạt được bởiSửa đổi chức năng cả axít và kim loại.Bổ sung các thành phần để chức năng axit, chẳng hạn như clorua,thay đổi sức mạnh và số tiền của các trang web hỗ trợ axit. Cao acidthế mạnh tăng xúc tác axít than cốc và nứt tỷ giá[15]. mặc dù một số tiền quá mức của clo sẽ tăngphản ứng hydrocracking, tiền gửi carbon cũng sẽ tăng[14].Các sửa đổi của kim loại chức năng có thể đạt được bằng cách thêm trung họchoặc cả kim loại thành phần để Pt, là tóm tắtỞ đây.
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2. Catalyst
Naphtha reforming catalyst is a bifunctional catalyst consists of
a metal function, mainly platinum, and an acid function, usually
chloride alumina. The metal function catalyzes the hydrogenation the isomerization and cyclization reactions [11–13]. In order to
achieve an optimum performance of the naphtha reforming catalyst,
adequate balance between these functions is needed [14].
Improving the stability and selectivity of the catalyst as well as
reducing catalyst deactivation is a vital issue for enhancing the efficiency
and yield of the process. This practice could be achieved by
modification of both acid and metal function.
Addition of components to the acid function, such as chloride,
changes the strength and amount of support acid sites. Higher acid
strengths increase the acid-catalyzed coking and cracking rates
[15]. Although an excessive amount of chlorine would increase
the hydrocracking reactions, carbon deposits would also increase
[14].
Modification of metal function could be achieved by adding secondary
or ternary metal component to Pt, which is summarized
here.
Naphtha reforming catalyst is a bifunctional catalyst consists of
a metal function, mainly platinum, and an acid function, usually
chloride alumina. The metal function catalyzes the hydrogenation the isomerization and cyclization reactions [11–13]. In order to
achieve an optimum performance of the naphtha reforming catalyst,
adequate balance between these functions is needed [14].
Improving the stability and selectivity of the catalyst as well as
reducing catalyst deactivation is a vital issue for enhancing the efficiency
and yield of the process. This practice could be achieved by
modification of both acid and metal function.
Addition of components to the acid function, such as chloride,
changes the strength and amount of support acid sites. Higher acid
strengths increase the acid-catalyzed coking and cracking rates
[15]. Although an excessive amount of chlorine would increase
the hydrocracking reactions, carbon deposits would also increase
[14].
Modification of metal function could be achieved by adding secondary
or ternary metal component to Pt, which is summarized
here.
đang được dịch, vui lòng đợi..
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